# TCDS E38NE: CFM International S.A.

- Type: Type certificate data sheet
- Status: Current
- Holder: CFM International S.A.
- Revision: 15
- Revised: January 15, 2026
- Product: Engine
- Certification basis: Part 33
- Data sheet PDF: https://openairdocs.org/files/sha256/54/d9/54d92d33a47f65536f720f46b71363963236b6bc7b7e2b3c5ee71d933bfe9b7f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107866946420260115154148.0001
- Page: https://openairdocs.org/tcds/E38NE

## Models (52)

As the data sheet lists them.

- CFM56-5B1/2P
- CFM56-5B4/2P
- CFM56-5C2/F
- CFM56-5C3/G4
- CFM56-5B6/P
- CFM56-5C2/P
- CFM56-5C2/G4
- CFM56-5C3/P
- CFM56-5B4/3B1
- CFM56-5B9/3
- CFM56-5B4/P
- CFM56-5C2/F4
- CFM56-5B4/P1
- CFM56-5C2/4
- CFM56-5B7
- CFM56-5C2
- CFM56-5B1/3
- CFM56-5B2/2P
- CFM56-5B9/P
- CFM56-5B4
- CFM56-5B5/P
- CFM56-5B3/P
- CFM56-5B9/2P
- CFM56-5B2
- CFM56-5C4/1P
- CFM56-5B4/2P1
- CFM56-5B1
- CFM56-5C4/P
- CFM56-5B2/P
- CFM56-5C4/1
- CFM56-5B3/2P1
- CFM56-5B3/2P
- CFM56-5B1/P
- CFM56-5B4/3
- CFM56-5B7/3
- CFM56-5B8/P
- CFM56-5B7/P
- CFM56-5B3/P1
- CFM56-5B5/3
- CFM56-5C2/G
- CFM56-5C3/F4
- CFM56-5B6/3
- CFM56-5B6/2P
- CFM56-5B6
- CFM56-5B3/3
- CFM56-5C3/F
- CFM56-5B3/3B1
- CFM56-5C3/G
- CFM56-5B2/3
- CFM56-5B5
- CFM56-5B8/3
- CFM56-5C4

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
U.S. DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
TYPE CERTIFICATE DATA SHEET 
E38NE 
TCDS NUMBER E38NE 
 
REVISION: 15* 
DATE: January 15th, 2026 
CFM INTERNATIONAL, S.A. 
MODELS: 
  
CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B2 
CFM56-5B1/3 CFM56-5B2/3 CFM56-5B3/3 CFM56-5B3/3B1 
CFM56-5B2/P CFM56-5B2/2P CFM56-5B3/P CFM56-5B3/P1 
CFM56-5B4/3 CFM56-5B4/3B1 CFM56-5B5/3 CFM56-5B6/3 
CFM56-5B3/2P CFM56-5B3/2P1 CFM56-5B4 CFM56-5B4/P 
CFM56-5B4/P1 CFM56-5B4/2P CFM56-5B4/2P1 CFM56-5B5 
CFM56-5B5/P CFM56-5B6 CFM56-5B6/P CFM56-5B6/2P 
CFM56-5B7 CFM56-5B7/P CFM56-5B8/P CFM56-5B9/P 
CFM56-5B7/3 CFM56-5B8/3 CFM56-5B9/3 CFM56-5B9/2P 
CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4 
CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F 
CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P 
CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P 
 
Engines of models described herein conforming with this data sheet (which is part of Type Certificate Number E38NE) and other 
approved data on file with the Federal Aviation Administration, meet the minimum standards for use in certificated aircraft in 
accordance with pertinent aircraft data sheets and applicable portions of the Federal Aviation Regulations, provided they are 
installed, operated, and maintained as prescribed by the approved manufacturer's manuals and other approved instructions. 
 
TYPE CERTIFICATE (TC) HOLDER: CFM International, S.A. 
2 Boulevard du General Martial Valin 
75015 Paris, France 
 
I. MODELS CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B1/3 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
30,000/ 
13,345 daN 
 
29,090/ 
12,940 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
 
 
 
 
 
 
* 
PAGE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 
REV. 15 13 13 13 10 13 13 11 13 13 13 13 11 11 11 11 11 11 11 11 12 11 13 15 11 15 13 14 
 LEGEND: "- -" INDICATES "SAME AS PRECEDING MODEL" 
"---" NOT APPLICABLE 
NOTE: SIGNIFICANT CHANGES ARE BLACK-LINED IN THE LEFT MARGIN.

E37NE  2 of 28  
 
 
 
 
I. MODELS (CONT.) CFM56-5B1 CFM56-5B1/P CFM56-5B1/2P CFM56-5B1/3 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
301-785-503-0 
 
 
1348M79 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36 
1820M89 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-046-002-0 
338-046-004-0 
338-046-006-0 
- - 
- - 
- - 
- - 
- - 
- - 
2121M47 
2121M48 
2447M39 
2458M04 
 
338-046-004-0 
338-125-301-0 
338-125-305-0 
1820M87 
1820M88 
- - 
- - 
- - 
- - 
--- 
--- 
--- 
--- 
 
- - 
338-046-090-0 
338-046-095-0 
338-122-801-0 
338-122-805-0 
338-125-301-0 
338-125-305-0 
--- 
--- 
--- 
--- 
- - 
- - 
--- 
--- 
2447M39 
2458M04 
 
- - 
--- 
--- 
--- 
--- 
--- 
--- 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
5512.9 
2500.6 
5412.9 
2455.2 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- -

E37NE  3 of 28  
 
 
 
 
II. MODELS CFM56-5B2 CFM56-5B2/P CFM56-5B2/2P CFM56-5B2/3 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
31,000/ 
13,789 daN 
 
29,090/ 
12,940 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
301-785-503-0 
 
 
1348M79 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36 
1820M89 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-046-021-0 
338-046-023-0 
338-046-026-0 
- - 
- - 
- - 
- - 
- - 
- - 
2447M39 
2458M04 
2121M47 
2121M48 
 
338-046-023-0 
338-122-720-0 
338-122-725-0 
338-128-660-0 
338-128-665-0 
1820M87 
1820M88 
- - 
- - 
- - 
- - 
--- 
--- 
--- 
--- 
 
- - 
338-046-080-0 
338-122-820-0 
338-122-825-0 
338-125-320-0 
338-125-325-0 
338-127-400-0 
338-127-405-0 
--- 
--- 
--- 
--- 
- - 
- - 
2447M39 
2458M04 
--- 
--- 
 
- - 
--- 
--- 
--- 
--- 
--- 
--- 
--- 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.8 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- -

E37NE  4 of 28  
 
 
 
 
II. MODELS (CONT.) CFM56-5B2 CFM56-5B2/P CFM56-5B2/2P CFM56-5B2/3 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
5512.9 
2500.6 
5412.9 
2455.2 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
III. MODELS CFM56-5B3/P CFM56-5B3/P1 CFM56-5B3/2P CFM56-5B3/2P1 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
32,000/ 
14,234 daN 
 
29,090/ 
12,940 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
301-797-402-0  - - - - - - 
Hydromechanical unit 
(GE Part Number) 
1348M79 - - - - - - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36  --- 1820M87 --- 
1820M89 --- 1820M88 --- 
2042M13 - - - - - - 
2042M14 - - - - - - 
2123M55 - - - - - - 
2123M56 - - - - - - 
2121M47 - - --- --- 
2121M48 - - --- --- 
2447M39 - - --- --- 
2458M04 - - --- --- 
338-122-730-0 338-122-733-0 338-122-732-0 338-122-733-0 
338-122-732-0 --- 338-122-830-0 --- 
338-122-735-0 --- 338-122-835-0 --- 
338-128-670-0 --- 338-128-300-0 --- 
338-128-675-0 --- 338-128-305-0 --- 
  338-128-310-0 --- 
  338-128-315-0 --- 
  338-128-320-0 --- 
  338-128-325-0 --- 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils.

E37NE  5 of 28  
 
 
 
 
III. MODELS (CONT.) CFM56-5B3/P CFM56-5B3/P1 CFM56-5B3/2P CFM56-5B3/2P1 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
5512.9 
2500.6 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
IV. MODELS CFM56-5B4 CFM56-5B4/P CFM56-5B4/P1 CFM56-5B4/2P 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
27,000/ 
12,010 daN 
 
24,370/ 
10,840 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
113oF / 45oC 
77oF / 25oC 
- - 
- - 
122oF / 50oC 
- - 
113oF / 45oC 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
301-785-503-0 
 
 
1348M79 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- -

E37NE  6 of 28  
 
 
 
 
IV. MODELS (CONT.) CFM56-5B4 CFM56-5B4/P CFM56-5B4/P1 CFM56-5B4/2P 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36 
1820M89 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-046-041-0 
338-046-043-0 
338-046-046-0 
- - 
- - 
- - 
- - 
- - 
- - 
2121M47 
2121M48 
2447M39 
2458M04 
 
338-046-043-0 
338-122-740-0 
338-122-745-0 
338-128-680-0 
338-128-685-0 
--- 
--- 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
338-046-044-0 
--- 
--- 
--- 
--- 
1820M87 
1820M88 
- - 
- - 
- - 
- - 
--- 
--- 
--- 
--- 
 
338-046-043-0 
338-122-840-0 
338-122-845-0 
338-125-340-0 
338-125-345-0 
338-128-410-0 
338-128-415-0 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
- - 
- - 
5512.9 
2500.6 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
V. MODELS CFM56-5B3/3 CFM56-5B3/3B1 CFM56-5B4/3B1 CFM56-5B4/3 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
32,000/ 
14,234 daN 
 
29,090/ 
12,940 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
27,000/ 
12,010 daN 
 
24,370/ 
10,840 daN 
 
 
- - 
- - 
 
- - 
- -

E37NE  7 of 28  
 
 
 
 
 
 
V. MODELS (CONT.) CFM56-5B3/3 CFM56-5B3/3B1 CFM56-5B4/3B1 CFM56-5B4/3 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
122oF / 50oC 
- - 
113oF / 45oC 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
 
 
 
1348M79 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
Identification plugs 
(SNECMA Part Number) 
2123M55 
2123M56 
2447M39 
2458M04 
 
338-122-732-0 
- - 
- - 
- - 
- - 
 
338-122-733-0 
- - 
- - 
- - 
- - 
 
338-046-044-0 
- - 
- - 
- - 
- - 
 
338-046-043-0 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
VI. MODELS CFM56-5B4/2P1 CFM56-5B5 CFM56-5B5/P CFM56-5B5/3 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor

E37NE  8 of 28  
 
 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
27,000/ 
12,010 daN 
 
24,370/ 
10,840 daN 
 
 
22,000/ 
9,786 daN 
 
20,250/ 
9,008 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- -

E37NE  9 of 28  
 
 
 
 
VI. MODELS (CONT.) CFM56-5B4/2P1 CFM56-5B5 CFM56-5B5/P CFM56-5B5/3 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
122oF / 50oC 
77oF / 25oC 
113oF / 45oC 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
 
 
 
1348M79 
- - 
301-785-503-0 
 
 
- - 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
--- 
--- 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-046-044-0 
1820M36 
1820M89 
- - 
- - 
- - 
- - 
--- 
--- 
--- 
--- 
 
338-046-050-0 
338-046-052-0 
338-046-055-0 
- - 
- - 
- - 
- - 
- - 
- - 
2121M47 
2121M48 
2447M39 
2458M04 
 
338-046-052-0 
338-122-750-0 
338-122-755-0 
338-128-690-0 
338-128-695-0 
--- 
--- 
--- 
--- 
- - 
- - 
--- 
--- 
- - 
- - 
 
- - 
--- 
--- 
--- 
--- 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5512.9 
2500.6 
5412.9 
2455.2 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- -

E37NE  10 of 28  
 
 
 
 
VII. MODELS CFM56-5B6 CFM56-5B6/P CFM56-5B6/3 CFM56-5B6/2P 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
23,500/ 
10,453 daN 
 
20,250/ 
9,008 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
113oF / 45oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
301-785-503-0 
 
 
1348M79 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
- - 
--- 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36 
1820M89 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-046-060-0 
338-046-062-0 
338-046-065-0 
- - 
- - 
- - 
- - 
- - 
- - 
2121M47 
2121M48 
2447M39 
2458M04 
 
338-046-062-0 
338-122-760-0 
338-122-765-0 
338-129-700-0 
338-129-705-0 
--- 
--- 
--- 
--- 
- - 
- - 
--- 
--- 
- - 
- - 
 
- - 
--- 
--- 
--- 
--- 
1820M87 
1820M88 
2042M13 
2042M14 
- - 
- - 
--- 
--- 
--- 
--- 
 
- - 
338-122-860-0 
338-122-865-0 
338-125-360-0 
338-125-365-0 
338-128-430-0 
338-128-435-0 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Two ignition units 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
Flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- -

E37NE  11 of 28  
 
 
 
 
VII. MODELS (CONT.) CFM56-5B6 CFM56-5B6/P CFM56-5B6/3 CFM56-5B6/2P 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
- - 
- - 
5512.9 
2500.6 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
VIII. MODELS CFM56-5B7 CFM56-5B7/P CFM56-5B7/3 CFM56-5B8/P 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
27,000/ 
12,010 daN 
 
24,370/ 
10,840 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
21,600/ 
9,608 daN 
 
19,060/ 
8,478 daN 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
113oF / 45oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
 
 
 
1348M79 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1820M36 
1820M89 
2042M13 
2042M14 
2123M55 
2123M56 
--- 
--- 
--- 
--- 
 
338-126-941-0 
338-128-440-0 
338-128-445-0 
- - 
- - 
- - 
- - 
- - 
- - 
2121M47 
2121M48 
2447M39 
2458M04 
 
- - 
338-128-450-0 
338-128-455-0 
338-128-470-0 
338-128-475-0 
--- 
--- 
--- 
--- 
- - 
- - 
--- 
--- 
- - 
- - 
 
- - 
--- 
--- 
--- 
--- 
--- 
--- 
2042M13 
2042M14 
- - 
- - 
2121M47 
2121M48 
- - 
- - 
 
338-130-001-0 
--- 
--- 
--- 
--- 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5B 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- -

E37NE  12 of 28  
 
 
 
 
VIII. MODELS (CONT.) CFM56-5B7 CFM56-5B7/P CFM56-5B7/3 CFM56-5B8/P 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
IX. MODELS CFM56-5B8/3 CFM56-5B9/P CFM56-5B9/2P CFM56-5B9/3 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
CFM56-5B/2P & -5B/2P1 SERIES ONLY: Double Annular Combustor. 
RATINGS (See NOTE 4) 
 
Takeoff (5 min., see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
21,600/ 
9,608 daN 
 
19,060/ 
8,478 daN 
 
 
23,300/ 
10,364 daN 
 
20,250/ 
9,008 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
113°F / 45°C 
77°F / 25°C 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-797-402-0 
 
 
 
1348M79 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
- - 
 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
2123M55 
2123M56 
--- 
--- 
2447M39 
2458M04 
--- 
--- 
 
338-130-001-0 
- - 
- - 
2042M13 
2042M14 
- - 
- - 
2121M47 
2121M48 
 
338-130-010-0 
- - 
- - 
- - 
- - 
--- 
--- 
--- 
--- 
 
- - 
- - 
- - 
--- 
--- 
2447M39 
2458M04 
--- 
--- 
 
- - 
OIL Synthetic type conforming to GE Specification D50TF1, Type 1 and Type 11. 
CFM Service Bulletin CFM56-5B 79-0001 lists approved brand oils. 
IGNITION SYSTEM GE PART NUMBER

E37NE  13 of 28  
 
 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
 
9238M66 
 
 
1374M12 
1374M13 
 
- - 
 
 
- - 
- - 
 
- - 
 
 
- - 
- - 
 
- - 
 
 
- - 
- -

E37NE  14 of 28  
 
 
 
IX.MODELS (CONT.) CFM56-5B8/3 CFM56-5B9/P CFM56-5B9/2P CFM56-5B9/3 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan 
casing forward flange) 
102.3 / 2599.7 
 
 
75.12 / 1908 
 
82.87 / 2105 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5412.9 
2455.2 
- - 
- - 
5512.9 
2500.6 
5412.9 
2455.2 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
204.8 ± 1 
5202 ± 25 
- - 
- - 
- - 
- - 
- - 
- - 
 
X. MODELS CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. 
Long duct mixed flow exhaust system. Thrust reverser. 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
31,200/ 
13,878 daN 
 
28,300/ 
12,588 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-785-503-0 
301-797-402-0 
 
 
1348M79 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1754M93 
1799M97 
1799M98 
1851M41 
1851M42 
1851M43 
1960M55 
1960M56 
1960M82 
1960M83 
 
337-151-901-0 
337-151-905-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-151-941-0 
337-151-951-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-180-401-0 
337-180-411-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-180-441-0 
337-180-451-0

E37NE  15 of 28  
 
 
 
 
X. MODELS (CONT.) CFM56-5C2 CFM56-5C2/4 CFM56-5C2/F CFM56-5C2/F4 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Ignition unit 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
103.2 / 2622 
 
 
76.61 / 1946 
 
88.58 / 2250 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation 
Pounds 
Kilograms 
5830 
2644.4 
- - 
- - 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
206.0 ± 1.0 
5232.4 ± 25.4 
- - 
- - 
- - 
- - 
- - 
- - 
 
XI. MODELS CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F 
TYPE High bypass turbofan; coaxial front fan/booster driven by multi-stage low pressure 
turbine, multi-stage compressor with one-stage high pressure turbine and annular 
combustor. Long duct mixed flow exhaust system. Thrust reverser. 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
31,200/ 
13,878 daN 
 
28,300/ 
12,588 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
32,500/ 
14,457 daN 
 
29,400/ 
13,078daN 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-785-503-0 
301-797-402-0 
 
 
1348M79 
- - 
- - 
 
 
- - 
--- 
- - 
 
 
- - 
301-785-503-0 
- - 
 
 
- -

E37NE  16 of 28  
 
 
 
 
XI. MODELS (CONT.) CFM56-5C2/G CFM56-5C2/G4 CFM56-5C2/P CFM56-5C3/F 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1754M93 
1799M97 
1799M98 
1851M41 
1851M42 
1851M43 
1960M55 
1960M56 
1960M82 
1960M83 
 
337-183-601-0 
337-183-611-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-183-641-0 
337-183-651-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-180-421-0 
337-180-431-0 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Two ignition units 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
103.2 / 2622 
 
 
76.61 / 1946 
 
88.58 / 2250 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5830 
2644.4 
- - 
- - 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
206.0 ± 1.0 
5232.4 ± 25.4 
- - 
- - 
- - 
- - 
- - 
- - 
 
XII. MODELS CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P 
TYPE High bypass turbofan; coaxial front/fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. Long 
duct mixed flow exhaust system. Thrust reverser. 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
32,500/ 
14,457 daN 
 
29,400/ 
13,078 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels

E37NE  17 of 28  
 
 
 
 
XII. MODELS (CONT.) CFM56-5C3/F4 CFM56-5C3/G CFM56-5C3/G4 CFM56-5C3/P 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
Hydromechanical unit 
(GE Part Number) 
301-785-503-0 
301-797-402-0 
 
 
1348M79 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
--- 
- - 
 
 
- - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1754M93 
1799M97 
1799M98 
1851M41 
1851M42 
1851M43 
1960M82 
1960M83 
1960M55 
1960M56 
 
337-180-461-0 
337-180-471-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-183-621-0 
337-183-631-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-183-661-0 
337-183-671-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
- - 
- - 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Two ignition units 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
103.2 / 2622 
 
 
76.61 / 1946 
 
88.58 / 2250 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 
Kilograms 
5830 
2644.4 
- - 
- - 
- - 
- - 
- - 
- - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 
Millimeters 
206.0 ± 1.0 
5232.4 ± 25.4 
- - 
- - 
- - 
- - 
- - 
- - 
 
XIII. MODELS CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P 
TYPE High bypass turbofan; coaxial front/fan/booster driven by multi-stage low pressure turbine, 
multi-stage compressor with one-stage high pressure turbine and annular combustor. Long 
duct mixed flow exhaust system. Thrust reverser. 
RATINGS (See NOTE 4) 
 
Takeoff (5 min. see NOTE 16), 
sea level, static thrust, lb. 
 
Maximum continuous, sea 
level static thrust, lb. 
 
 
34,000/ 
15,124 daN 
 
30,060/ 
13,371 daN 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- - 
 
 
- - 
- - 
 
- - 
- -

E37NE  18 of 28  
 
 
 
 
XIII. MODELS (CONT.) CFM56-5C4 CFM56-5C4/P CFM56-5C4/1 CFM56-5C4/1P 
Flat rating AMBIENT TEMPERATURE 
Takeoff 
Maximum continuous 
86oF / 30oC 
77oF / 25oC 
- - 
- - 
- - 
- - 
- - 
- - 
FUEL SYSTEM See NOTE 7 for approved fuels 
Fuel pump / SNECMA P/N 
(Combined boost and single 
element gear-type pump) 
301-797-402-0 - - - - - - 
Hydromechanical unit 
(GE Part Number) 
1348M79 - - - - - - 
Electronic control unit 
(GE Part Number) 
 
 
 
 
 
 
 
 
 
Identification plugs 
(SNECMA Part Number) 
1754M93 
1799M97 
1799M98 
1851M41 
1851M42 
1851M43 
1960M55 
1960M56 
1960M82 
1960M83 
 
337-183-801-0 
337-183-811-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
337-183-821-0 
337-183-831-0 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
- - 
 
- - 
- - 
OIL Synthetic type conforming to GE Specification D50TF1, Type I and Type II. 
CFM Service Bulletin CFM56-5C 79-0001 list approved brand oils. 
IGNITION SYSTEM GE PART NUMBER 
Two ignition units 
Unison 
 
Two igniter plugs 
Unison 
Champion 
9238M66 
 
 
1374M12 
1374M13 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
- - 
 
 
- - 
- - 
PRINCIPAL DIMENSIONS INCHES / MILLIMETERS 
Length, (fan case forward 
flange to LPT frame aft 
flange) 
Width, (fan casing forward 
flange diameter) 
Height, (bottom of accessory 
gearbox to top of fan casing 
forward flange) 
103.2 / 2622 
 
 
76.61 / 1946 
 
88.58 / 2250 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
- - 
 
 
- - 
 
- - 
WEIGHT (dry) Includes basic engine accessories and optional equipment as listed in manufacturers 
specification, and engine-mounted portions of the condition monitoring instrumentation. 
Pounds 5830 - - - - - - 
Kilograms 2644.4 - - - - - - 
CENTER OF GRAVITY 
LOCATIONS 
STATION, ENGINE ONLY (REFER TO INSTALLATION DRAWING) 
Inches 206.0 ± 1.0 - - - - - - 
Millimeters 5232.4 ± 25.4 - - - - - -

E37NE  19 of 28  
 
 
 
 
CERTIFICATION BASIS 1. 14 CFR Part 33, effective February 1, 1965, with Amendments 33-1 through 33-11 
thereto. 
 
2. See NOTE 21 for emissions certification basis. 
 
NOTE: CFM56-5B1/2, -5B2/2, -5B4/2, and -5B6/2 have been removed from this type 
data sheet since they have been either converted to another CFM56 model rating or are out 
of service. 
MODEL 
APPLICATION 
DATE 
TYPE CERTIFICATE 
ISSUED/AMENDED 
TYPE CERTIFICATE 
WITHDRAWN 
 
CFM56-5C2 
 
12/15/88 
 
12/31/91 
 
CFM56-5C3 12/15/88 12/31/91 05/24/93 
CFM56-5C2/F 04/03/92 03/01/93  
CFM56-5C3/F 04/03/92 03/01/93  
CFM56-5B2 08/30/90 05/28/93  
CFM56-5B1 08/30/90 02/02/94  
CFM56-5B4 06/08/92 02/02/94  
CFM56-5B1/2 12/01/92 07/27/94 07/25/02 
CFM56-5B2/2 12/01/92 07/27/94 07/25/02 
CFM56-5B4/2 12/01/92 07/27/94 07/25/02 
CFM56-5C2/G 02/26/93 10/27/94  
CFM56-5C3/G 02/26/93 10/27/94  
CFM56-5C4 02/26/93 10/27/94  
CFM56-5B6/2 04/19/94 10/30/95 07/25/02 
CFM56-5B5 04/19/94 03/11/96  
CFM56-5B6 04/19/94 03/11/96  
CFM56-5C2/4 06/14/95 04/17/96  
CFM56-5C2/F4 06/14/95 04/17/96  
CFM56-5C2/G4 06/14/95 04/17/96  
CFM56-5C3/F4 06/14/95 04/17/96  
CFM56-5C3/G4 06/14/95 04/17/96  
CFM56-5C4/1 06/21/95 04/17/96  
CFM56-5B1/P 02/21/95 06/20/96  
CFM56-5B1/2P 02/21/95 06/20/96  
CFM56-5B2/P 02/21/95 06/20/96  
CFM56-5B2/2P 02/21/95 06/20/96  
CFM56-5B3/2P 02/21/95 06/20/96  
CFM56-5B4/P 02/21/95 06/20/96  
CFM56-5B4/2P 02/21/95 06/20/96  
CFM56-5B5/P 02/21/95 06/20/96  
CFM56-5B6/P 02/21/95 06/20/96  
CFM56-5B6/2P 02/21/95 06/20/96  
CFM56-5B3/P 02/21/95 09/10/96  
CFM56-5B7 12/03/97 06/07/99  
CFM56-5B7/P 12/03/97 11/03/99  
CFM56-5B8/P 04/23/01 07/25/02  
CFM56-5B9/P 04/23/01 07/25/02  
CFM56-5B9/2P 04/23/01 07/25/02  
CFM56-5C2/P 12/14/00 08/06/03  
CFM56-5C3/P 12/14/00 08/06/03  
CFM56-5C4/P 12/14/00 08/06/03  
CFM56-5C4/1P 12/14/00 08/06/03  
CFM56-5B3/P1 01/25/02 10/25/04  
CFM56-5B3/2P1 01/25/02 10/25/04  
CFM56-5B4/P1 01/25/02 10/25/04  
CFM56-5B4/2P1 01/25/02 10/25/04  
CFM56-5B1/3 04/23/05 09/15/06  
CFM56-5B2/3 04/23/05 09/15/06  
CFM56-5B3/3 04/23/05 09/15/06  
CFM56-5B3/3B1 04/23/05 09/15/06  
CFM56-5B4/3 04/23/05 09/15/06  
CFM56-5B4/3B1 04/23/05 09/15/06  
CFM56-5B5/3 04/23/05 09/15/06

E37NE  20 of 28  
 
 
 
CERTIFICATION BASIS 
(CONT.) 
APPLICATION TYPE CERTIFICATE TYPE CERTIFICATE 
MODEL DATE  ISSUED/AMENDED  WITHDRAWN 
CFM56-5B6/3 04/23/05 09/15/06 
CFM56-5B7/3 04/23/05 09/15/06 
CFM56-5B8/3 04/23/05 09/15/06 
CFM56-5B9/3 04/23/05 09/15/06 
 The Direction Generale de L'Aviation Civile (DGAC) originally type certificated these engine 
models under DGAC Certifcate de Type Moteur M17. The FAA validated these products 
under Type Certificate Number E38NE. Effective September 28, 2003, the European 
Aviation Safety Agency (EASA) began oversight of these products on behalf of France. 
EASA Type Certificate Number EASA.E.003 was issued on October 24, 2004. 
PRODUCTION BASIS 
 
 
 
 
IMPORT REQUIREMENTS 
The original production basis was "Agreement de Production" Numbers F.G.007 or P03 
issued by the DGAC for engines produced in France by Snecma under license from CFM 
International, S.A. Effective September 28, 2004, these engine models were produced 
under EASA Production Certificate FR.21G.0007. (See NOTE 10) 
 
To be considered for installation on aircraft registered in the United States, each individually 
imported engine must be accompanied by an EASA airworthiness approval certificate 
(EASA Form 1 – Authorized Release Certificate) or JAA Form 1 issued by Snecma on 
behalf of EASA under EASA Production Certificate FR.21G.0007. 
The EASA Form 1 – Authorized Release Certificate, or JAA Form 1, should contain the 
following statement: ‘The engine covered by this certificate has been examined, tested, and 
found to conform to U.S. Type Certificate No. E38NE and is in a condition for safe 
operation.’

E37NE  21 of 28  
 
 
 
NOTES 
 
NOTE 1. MAXIMUM PERMISSIBLE TEMPERATURES 
 CFM56-5B SAC 
COMBUSTOR SERIES 
CFM56-5B/2P AND - 
5B/2P1 SERIES 
ALL CFM56-5C 
ENGINE MODELS 
TURBINE EXHAUST GAS 
(T495) (See NOTE 17) 
As measured by a harness of nine thermocouples located at the second stage low pressure 
turbine vane: 
Takeoff (5 min.) 
Maximum continuous 
Starting 
CFM56-5B/2 In-flight 
Time temperature envelope 
Refer to model's S.O.I. 
950°C 
915°C 
725°C 
--- 
 
CFM-TP.0I.13 
- - 
- - 
- - 
850°C 
 
- - 
- - 
- - 
- - 
--- 
 
CFM-TP.OI.12 
FUEL PUMP INLET REFER TO THE APPROPRIATE INSTALLATION MANUAL 
OIL SUPPLY 
Continuous operation 
Transient (15 minutes) 
140°C/284°F 
155°C/311°F 
- - 
- - 
- - 
- - 
 
NOTE 2. FUEL AND OIL PRESSURE LIMITS 
Fuel limits 
 
 
 
 
 
Oil limits 
Operation and air/ground starting pressure limits with the aircraft boost pump operative 
extend from a minimum fuel pressure of not less than 5.5 psia (37.9 kPa absolute) above 
the true fuel vapor pressure to a maximum of 50 psig (344.8 kPa gauge), relative to 
atmosphere, with vapor/liquid ratio of zero at all conditions. See Installation Manual, Part A, 
Section 5, Figures A2 and A4. For limits with the aircraft boost pump inoperative, see 
Installation Manual, Part A, Section 5, Figures A3 and A5. 
 
The minimum pressure limit at idle is 13 psid (89.6 kPa differential) and varies up to 45 psid 
(310.2 kPa differential) at cruise thrust. The maximum pressure limit during 
cold starts is 300 psid (2069 kPa differential), limited by a pressure-relief valve. 
See NOTE 13. 
 
NOTE 3. ACCESSORY DRIVE PROVISIONS 
 CFM56-5B ENGINE MODELS CFM56-5C ENGINE MODELS 
ELECTRICAL 
Rotation (1) 
Speed ratio to core 
Pad Rating (kW) 
Shear Torque (in-lb) 
Maximum overhung moment 
(in-lb) 
CCW 
0.5947 
135 
9,492 
1,000 
- - 
- - 
- - 
- - 
- - 
HYDRAULIC PUMP 
Rotation (1) 
Speed ratio to core 
Pad Rating (in-lb) 
Shear Torque (in-lb) 
Maximum overhung moment 
(in-lb) 
CCW 
0.256 
1,500 
4,400 
160 
- - 
- - 
- - 
- - 
183 
 (1) CW = CLOCKWISE / CCW = COUNTERCLOCKWISE

E37NE  22 of 28  
 
 
NOTE 4. Engine ratings are based on calibrated stand performance under the following conditions: 
 
Takeoff thrust is nominally independent of ambient temperature (flat rated) up to ambient 
temperature of: 
 
Std + 15°C (30°C, 86°F): CFM56-5B1, -5B1/P, -5B1/2P, -5B1/3, -5B2, -5B2/P, 
-5B2/2P, -5B2/3, -5B3/3, -5B3/3B1, -5B3/P, -5B3/P1, 
-5B3/2P, -5B3/2P1, -5C2, -5C2/4, -5C2/F, 
-5C2/F4, -5C2/G, -5C2/G4, -5C2/P, -5C3/F, -5C3/F4, 
-5C3/G, -5C3/G4, -5C3/P, -5C4, -5C4/P, -5C4/1, -5C4/1P. 
Std + 30°C (45°C, 113°F): CFM56-5B4, -5B4/P, -5B4/2P, -5B4/3, -5B5, -5B5/P, 
-5B5/3, -5B6, -5B6/P, -5B6/2P, -5B6/3, -5B7, -5B7/P, 
-5B7/3, -5B8/P, -5B8/3, -5B9/P, -5B9/2P, -5B9/3. 
Std + 35°C (50°C, 122°F): CFM56-5B4/P1, -5B4/2P1, -5B4/3B1. 
 
Maximum continuous is nominally independent of ambient temperature (flat rated) up to 
ambient temperature of Std. + 10°C (25°C, 77°F) for all models. 
 
Zero customer bleed and horsepower extraction. 
No scrubbing drags. 
100% inlet recovery. 
 
Based on CFM International referee separate flow exhaust system with primary (core) 
exhaust nozzle and fan nozzle for all CFM56-5B engine models. 
Based on CFM International long duct mixed flow flight exhaust system for all CFM56-5C 
engine models. 
 
NOTE 5. MAXIMUM PERMISSIBLE ENGINE ROTOR SPEEDS (See NOTE 18) 
 CFM56-5C2, 
-5C2/F, -5C3/F, 
-5C2/G, -5C3/G, -5C2/4, 
-5C2/F4, -5C2/G4, 
-5C3/F4, -5C3/G4 
ALL CFM56-5B ENGINE 
MODELS 
CFM56-5C4, -5C4/1, 
-5C2/P, -5C3/P, -5C4/P, 
-5C4/1P 
 RPM % RPM % RPM % 
Low pressure rotor (N1) 
High pressure rotor (N2) 
4,800 
15,183 
100.3 
105.0 
5,200 
- - 
104.0 
- - 
4,985 
- - 
104.2 
- - 
 
 
 
NOTE 6. MAXIMUM PERMISSIBLE AIR BLEED EXTRACTION (ALL MODELS) 
LOCATION FAN CORRECTED SPEED FLOW LIMIT 
Fan Discharge 
HPC Stage 5 only 
Compressor discharge only 
 
 
 
HPC Stage 5 and compressor 
discharge combined 
All speeds above minimum idle 
 
All speeds above minimum idle 
 
Minimum idle to 61% N1K 
61% to 82.5% N1K 
Above 82.5% N1K 
 
Minimum idle to 61% N1K 
61% to 82.5% N1K 
Above 82.5% N1K 
2% fan airflow 
 
10% core airflow 
 
14% core airflow 
Linear variation from 14% to 7% core airflow 
7% core airflow 
 
14% core airflow 
Linear variation from 14% to 10% core airflow 
10% core airflow 
 
NOTE 7. Approved fuel conforming to GE Specification D50TF2. MIL-T-5624, Grades JP-4 or JP-5, 
ASTM D 1655, Jet A, A1 and B are consistent with this General Electric Specification. 
Primary fuel is Jet A, with other fuels listed being acceptable alternates. No fuel control 
adjustment is required when changing from primary to alternate fuels. Use of aviation 
gasoline is not authorized. Consult Specific Operating Instructions for additive usage.

E37NE  23 of 28  
 
 
NOTE 8. Life limits established for critical rotating and static components are published in Chapter 5 
of the CFM56-5B Shop Manual, CFMI-TP-SM.9, for the CFM56-5B engine models, and the 
CFM56-5C Shop Manual, CFMI-TP.SM.8, for the CFM56-5C engine models. 
NOTE 9. Power setting, power checks and control of engine thrust output in all operations are to be 
based on CFM International engine charts referring to fan speed. Fan speed sensors are 
included in the engine assembly for this purpose. 
NOTE 10. The type certificate holder, CFM International, S.A., is a company established and jointly 
owned by Snecma of France and the General Electric Company for the certification, sale, 
and support of CFM56 series engines. With respect to the benefits of type certification for 
production, General Electric and Snecma function as licensees of CFM International, S.A. 
 
This type certificate applies only to engines produced in France to EASA Type Certificate 
No. EASA.E.003. Engines of the same model designation produced in the United States to 
Type Certificate No. E37NE are identical to and fully interchangeable with engines produced 
to this type certificate. Modules, assemblies, or parts produced in the United States under 
Production Certificate No. 108 are eligible for use in engines produced to this type 
certificate. 
 
CFM56-5B Engine Models: 
CFM56-5B Engine Models: 
The engine assembly line is identified by a 3 digit prefix in the engine serial number. Refer to 
CFM56-5B Service Bulletin 72-0781 for a list of the applicable serial numbers. 
 
French “Agreement de Production“ No. P03 was the original Snecma Production Basis. 
Beginning on February 17, 1998, all engines produced by Snecma were produced under 
Production Certificate No. F.G.007. Engine serial number 779-374 was the first CFM56-5B 
engine produced by Snecma under Production Certificate No. F.G.007. 
 
Effective September 28, 2004, engines produced by Snecma were produced under EASA 
Production Certificate FR.21G.0007. Engine serial number 577-150 was the first 
CFM56-5B/P engine produced by Snecma under the EASA Production Certificate. Engine 
serial number 577-933 was the first CFM56-5B/2P engine produced by Snecma under the 
EASA Production Certificate. 
 
CFM56-5C Engine Models: 
CFM56-5C Engine Models: 
The engine assembly line is identified by a 3 digit prefix in the engine serial number. Refer to 
CFM56-5C Service Bulletin 72-0697 for a list of the applicable serial numbers. 
 
French “Agreement de Production“ No. P03 was the original Snecma Production Basis. 
Beginning on February 5, 1998, all engines produced by Snecma were produced under 
Production Certificate No. F.G.007. Engine serial number 741-737 was the first CFM56-5C 
engine produced by Snecma under Production Certificate No. F.G.007. 
 
Effective September 28, 2004, engines produced by Snecma were produced under EASA 
Production Certificate FR.21G.0007. Engine serial number 567-281 was the first 
CFM56-5C series engine produced by Snecma under the EASA Production Certificate. 
NOTE 11. The engine manufacturer supplies the nacelle system and attachment fittings 
NS-CFM56-5G01, the total exhaust system ES-CFM56-5G01, and the 
engine-assembled EBU 736L699, which have been approved for installation on all 
CFM56-5C engine models in accordance with 14 CFR § 33. 
NOTE 12. The minimum permissible idle in flight corresponds to N2=58.8% (8,500 rpm) which is a 
non-adjustable limit, preset into the ECU Control schedule. 
NOTE 13. During negative -g operation only, it is permissible to operate below minimum oil pressure 
(13 psid) for a maximum of 10 seconds. See Specific Operating Instruction, Section 6.

E37NE  24 of 28  
 
 
 
 
NOTE 14. The models shown on this TCDS have the following general characteristics: 
MODEL CHARACTERISTICS 
CFM56-5B1 Similar to CFM56-5C2, except for new fan and booster and 
CFM56-5 LP turbine and revised thrust ratings. 
CFM56-5B1/P Same as CFM56-5B1, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
 
CFM56-5B1/3 Same as CFM56-5B1/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B1/2P Same as CFM56-5B1/2, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
Note, the CFM56-5B1/2 was similar to the CFM56-5B1 except the 
CFM56-5B1/2 had a dual annual combustor. 
 
CFM56-5B2 Same as CFM56-5B1, except for increased thrust ratings. 
 
CFM56-5B2/P Same as CFM56-5B2, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
 
CFM56-5B2/3 Same as CFM56-5B2/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B2/2P Same as CFM56-5B2/2, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
Note, the CFM56-5B2/2 was similar to the CFM56-5B1 but with a 
dual annual combustor and increased thrust rating. 
 
CFM56-5B3/P Same as CFM56-5B1, except for increased thrust rating and 
redesigned high pressure compressor, high pressure turbine, 
and low pressure turbine. 
 
CFM56-5B3/3 Same as CFM56-5B3/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B3/P1 Same as CFM56-5B3/P, except for a manually-activated takeoff 
thrust bump (within the certified standard day rating) for ambient 
temperatures above corner point. 
 
CFM56-5B3/3B1 Same as CFM56-5B3/P1, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B3/2P Same as CFM56-5B1, except for increased thrust rating and 
redesigned high pressure compressor, high pressure turbine, and 
low pressure turbine. CFM56-5B3/2P has a dual annular 
combustor. 
 
CFM56-5B3/2P1 Same as CFM56-5B3/2P, except for a manually-activated takeoff 
thrust bump (within the certified standard day rating) for ambient 
temperatures above corner point. 
 
CFM56-5B4 Same as CFM56-5B1, except for decreased thrust ratings. 
 
CFM56-5B4/P Same as CFM56-5B4, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
CFM56-5B4/3 Same as CFM56-5B4/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor.

E37NE  25 of 28  
 
 
 
 
NOTE 14. (CONT.) CFM56-5B4/P1 Same as CFM56-5B4/P, except for increased flat rating ambient 
temperature (corner point), and a manually-activated takeoff 
thrust bump (within the certified standard day rating) for ambient 
temperatures above corner point. 
CFM56-5B4/3B1 Same as CFM56-5B4/P1, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B4/2P Same as CFM56-5B4/2, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
Note, the CFM56-5B4/2 was similar to the CFM56-5B1 but with a 
dual annual combustor and decreased thrust rating. 
 
CFM56-5B4/2P1 Same as CFM56-5B4/2P, except for increased flat rating ambient 
temperature (corner point), and a manually-activated takeoff 
thrust bump (within the certified standard day rating) for ambient 
temperatures above corner point. 
 
CFM56-5B5 Same as CFM56-5B1, except for decreased thrust ratings. 
 
CFM56-5B5/P Same as CFM56-5B5, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
 
CFM56-5B5/3 Same as CFM56-5B5/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B6 Same as CFM56-5B1, except for decreased thrust ratings. 
 
CFM56-5B6/P Same as CFM56-5B6, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
 
CFM56-5B6/3 Same as CFM56-5B6/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B6/2P Same as CFM56-5B6/2, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
Note, the CFM56-5B6/2 was similar to the CFM56-5B1 but with a 
dual annual combustor and decreased thrust rating. 
 
CFM56-5B7 Same as CFM56-5B1, except for decreased thrust ratings. 
 
CFM56-5B7/P Same as CFM56-5B7, except for redesigned high pressure 
compressor, high pressure turbine, and low pressure turbine. 
 
CFM56-5B7/3 Same as CFM56-5B7/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B8/P Same as CFM56-5B1/P, except for reduced thrust rating. 
 
CFM56-5B8/3 Same as CFM56-5B8/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B9/P Same as CFM56-5B1/P, except for reduced thrust rating. 
 
CFM56-5B9/3 Same as CFM56-5B9/P, except for redesigned high pressure 
compressor, high pressure turbine, and combustor. 
 
CFM56-5B9/2P Same as CFM56-5B1/2P, except for reduced thrust rating.

E37NE  26 of 28  
 
 
 
 
NOTE 14. (CONT.) CFM56-5C2 Basic model. 
 
CFM56-5C2/4 Similar to CFM56-5C2, except for N1 limit increase through 
introduction of CFM56-5C4 redesigned fan stage airfoils. 
 
CFM56-5C2/F Similar to CFM56-5C2, except EGT limit increase through 
introduction of hot section modifications. 
 
CFM56-5C2/F4 Similar to CFM56-5C2/F, except for N1 limit increase through 
introduction of CFM56-5C4 redesigned fan stage airfoils. 
 
CFM56-5C2/G Similar to CFM56-5C2, except EGT limit increase through 
introduction of hot section modifications. 
 
CFM56-5C2/G4 Similar to CFM56-5C2/G, except for N1 limit increase through 
introduction of CFM56-5C4 redesigned fan stage airfoils. 
 
CFM56-5C2/P Same as CFM56-5C2/G4, except for redesigned high pressure 
compressor and high pressure turbine. 
 
CFM56-5C3/F Same as CFM56-5C2/F, except for increased thrust ratings. 
 
CFM56-5C3/F4 Similar to CFM56-5C3/F, except for N1 limit increase through 
introduction of CFM56-5C4 redesigned fan stage airfoils. 
CFM56-5C3/G Same as CFM56-5C2/G, except for increased thrust ratings 
CFM56-5C3/G4 Similar to CFM56-5C3/G, except for N1 limit increase through 
introduction of CFM56-5C4 redesigned fan stage airfoils. 
 
CFM56-5C3/P Same as CFM56-5C3/G4, except for redesigned high pressure 
compressor and high pressure turbine. 
 
CFM56-5C4 Same as CFM56-5C2/G, except for redesigned fan stage airfoils 
and increased thrust ratings. 
 
CFM56-5C4/P Same as CFM56-5C4, except for redesigned high pressure 
compressor and high pressure turbine. 
 
CFM56-5C4/1 Same as CFM56-5C4, except for introduction of takeoff thrust 
bump as a function of Mach number. 
CFM56-5C4/1P Same as CFM56-5C4/1, except for redesigned high pressure 
compressor and high pressure turbine.

E37NE  27 of 28  
 
 
 
 
NOTE 15. All CFM56-5B and CFM56-5C FADEC series engines have been approved to operate with 
certain faults present in the control system based on satisfaction of 14 CFR § 33 
requirements and appropriate engine control system reliability requirements. FAA approved 
criteria pertaining to dispatch and maintenance requirements for the engine control system 
are specified in General Electric Document No. GEK 103085 (-5B family) and GEK 100741 
(-5C family). These documents define the dispatchable configurations and maximum 
operating intervals. 
A control system reliability monitoring program has been established with CFM, as a 
contingency of the dispatch criteria approval, to ensure that overall engine control system 
and specific component failure rates do not exceed the maximum values permitted by the 
reliability analysis. 
NOTE 16. The normal 5 minute takeoff rating may be extended to 10 minutes for engine out 
contingency. 
NOTE 17. For the CFM56-5B/P, -5B/P1, -5B/2P, –5B/2P1, -5B/3 and -5B/3B1 series engines, the 
actual maximum permissible turbine exhaust gas temperature (EGT) is 10oC lower than the 
indicated EGT. An indicated EGT of 950oC corresponds to an actual EGT of 940oC, and an 
indicated EGT of 915oC corresponds to an actual EGT of 905oC. 
 
For CFM56-5C2/F, -5C2/F4, -5C3/F, and -5C3/F4 engines, the actual maximum permissible 
turbine EGT is 15oC higher than the indicated EGT. An indicated EGT of 950oC 
corresponds to an actual EGT of 965oC, and an indicated EGT of 915oC corresponds to an 
actual EGT of 930oC. 
 
For CFM56-5C2/G, -5C2/G4, -5C2/P, -5C3/G, -5C3/G4, -5C3/P, -5C4, -5C4/P, -5C4/1, 
and -5C4/1P engines, the actual permissible EGT is 25oC higher than the indicated EGT. 
An indicated EGT of 950oC corresponds to an actual EGT of 975oC, and an indicated EGT 
of 915oC corresponds to an actual EGT of 940oC. 
NOTE 18. For CFM56-5C2/4, -5C2/F4, -5C2/G4, -5C2/P, -5C3/F4, -5C3/G4 and -5C3/P engines, the 
actual maximum permissible N1 rotor speed is higher than the indicated N1. An indicated 
N1 of 4,800 RPM (100.3%) corresponds to an actual N1 of 4,985 RPM (104.2%). 
NOTE 19. CFM56-5B series includes: CFM56-5B1, -5B2, -5B4, -5B5, -5B6, -5B7 
CFM56-5B/P series includes: CFM56-5B1/P, -5B2/P, -5B3/P, -5B4/P, -5B5/P, 
-5B6/P, -5B7/P, -5B8/P, -5B9/P 
CFM56-5B/3 series includes: CFM56-5B1/3, -5B2/3, -5B3/3, -5B4/3, -5B5/3, 
-5B6/3, -5B7/3, -5B8/3, -5B9/3 
CFM56-5B/2P series includes: CFM56-5B1/2P, -5B2/2P, -5B3/2P, -5B4/2P, -5B6/2P, 
-5B9/2P 
CFM56-5B/P1 series includes: CFM56-5B3/P1, -5B4/P1 
CFM56-5B/2P1 series includes: CFM56-5B3/2P1, -5B4/2P1 
CFM56-5B/3B1 series includes: CFM56-5B3/3B1, -5B4/3B1 
NOTE 20. Installation Manuals, Specific Operating Instructions, Service Bulletins, Overhaul and 
Maintenance Manuals, Repair Manuals, Vendor Manuals, and Design Changes which 
contain a statement that the document is EASA approved or approved under authority of 
DOA No. EASA.21J.086 or for approvals made before September 28, 2003 by DGAC are 
accepted by the FAA and considered FAA approved. Repair data and related instructions 
are considered FAA approved or accepted as applicable. These approvals pertain to the 
type design only.

E37NE  28 of 28  
 
 
NOTE 21.  
 
 
EXHAUST EMISSIONS AND FUEL VENTING 
CFM56-5C2 is in compliance with the emissions requirements of Special Federal Aviation 
Regulations No. 27-5. All other engine models are in compliance with the emissions 
requirements in 14 CFR Part 34, effective September 10, 1990, as amended by 34-1 
through 34-3, with the exception of the following.  
 
The following emissions standards promulgated in 14 CFR part 34, amendment 7A, 
effective May 24, 2024, and 40 CFR part 1031, effective December 23, 2022, have 
been complied with for the following CFM56-5B series engines models: 
 
 
CFM56-5B1/3     CFM56-5B2/3        CFM56-5B3/3     CFM56-5B3/3B1 
CFM56-5B4/3     CFM56-5B4/3B1    CFM56-5B5/3     CFM56-5B6/3 
CFM56-5B7/3     CFM56-5B8/3        CFM56-5B9/3 
 
Fuel Venting Emission Standards: 14 CFR 34.11; in addition, 40 CFR 1031.30(b) 
 
Smoke Number (SN) Emission Standards: 14 CFR 34.21(e); in addition, 40 CFR 
1031.60(a)(5) 
 
Carbon Monoxide (CO) Emission Standards: 14 CFR 34.21(d)(1)(ii); in addition, 40 CFR 
1031.60(d) 
 
Hydrocarbons (HC) Emission Standards: 14 CFR 34.21(d)(1)(i); in addition, 40 CFR 
1031.60(c) 
 
Oxides of Nitrogen (NOx) Emission Standards: 14 CFR 34.23(b)(1); in addition, 40 CFR 
1031.60(e)(5) (also known as Tier 8 new type) 
 
non-volatile Particulate Matter (nvPM) Mass Concentration Emission Standards: 14 
CFR 34.25(a)(1); in addition, 40 CFR 1031.60(a)(6) (also known as Tier 10) 
 
nvPM Mass and Number Emission Standards: 14 CFR 34.25(a)(2); in addition, 40 CFR 
1031.60(b)(2) (also known as Tier 11 in-production) 
 
In addition to the FAA's finding of compliance based on the certification requirements 
defined in this TCDS, the engine manufacturer has declared that the ICAO emissions 
standards identified in Annex 16, Volume II, Fourth Edition, Amendment 10, effective 
July 20, 2020, have also been demonstrated for the following: 
• Part II, Chapter 2 for Fuel Venting, 
• Part III, Chapter 2, Section 2.2.2 for Smoke number, 
• Part III, Chapter 2, Section 2.3.2 for Carbon monoxide and Hydrocarbons, 
• Part III, Chapter 2, Section 2.3.2.e for Oxides of Nitrogen (also known as 
CAEP/8), 
• Part III, Chapter 4, Section 4.2.2.1 for nvPM Mass Concentration (also known as 
CAEP/10), and 
• Part III, Chapter 4, Section 4.2.2.2 for nvPM Mass and Number (also known as 
CAEP/11) 
 
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## ADs

None name its models.

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