- Holder
- General Electric Company GE Aviation
- Revision
- 14
- Status
- Current
- Product
- Engine
- Certification basis
- Part 33
- Models
- 11
- Registered
- 31 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 11
| Model | Also known as | Note |
|---|---|---|
| CF34-10E6 | ||
| CF34-10E5A1 | ||
| CF34-10E7 | ||
| CF34-10E7-B | ||
| CF34-10E2A1 | ||
| CF34-10E5 | ||
| CF34-10A16 | ||
| CF34-10E6A1 | ||
| CF34-10A16-B | ||
| CF34-10A16-C | ||
| CF34-10A16-D |
Airworthiness directives · 10
ADs whose products are models on this data sheet, matched by model and maker.
AD 2025-14-03Turbine SectionAD 2025-10-04Turbine SectionAD 2022-05-08Turbine Engine Oil SystemAD 2018-19-22Turbine Engine Turbine SectionAD 2012-01-10Fan drive shaftAD 2011-18-02Fan rotor spinnerAD 2008-05-01Fuel metering units (FMU)AD 2007-12-15Main fuel pump (MFP)AD 2007-12-09Combustor caseAD 2006-20-06HistoricalMain fuel pump (MFP) inlet strainer
Registered aircraft
Registry models that point at this data sheet, with their registered aircraft.
What the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
TCDS NUMBER E00070EN
U.S. DEPARTMENT OF TRANSPORTATION
REVISION: 14
DATE: July 9, 2024
FEDERAL AVIATION ADMINISTRATION GENERAL ELECTRIC COMPANY
TYPE CERTIFICATE DATA SHEET MODELS:
CF34-10A16, CF34-10A16-B, CF34-10A16-C, CF34-10A16-D,
CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-10E6,
CF34-10E6A1, CF34-10E7, CF34-10E7-B
Engines of models described herein conforming with this data sheet 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 manufacturers manuals and other
approved instructions.
TYPE CERTIFICATE (TC) HOLDER: General Electric Company
GE Aviation
1 Neumann Way
Cincinnati, OH 45215-6310
I. MODELS CF34-10E2A1 CF34-10E5 CF34-10E5A1 CF34-10E6 CF34-10E6A1 CF34-10E7 CF34-10E7-B
TYPE
Dual rotor, axial flow, high bypass ratio turbofan with single stage fan, 3-stage low pressure compressor, 9-stage high
pressure compressor, annular combustion chamber, single stage high pressure turbine, 4-stage low pressure turbine, a
thrust reverser, aft core cowl, exhaust nozzle, starter, and a full authority digital engine control (FADEC).
RATINGS (See NOTE 1)
Sea level static thrust, lb
Maximum takeoff (5 min.)
(See NOTES 10 and 13)
16960 18820 18820 18820 18820 20360 - -
Normal takeoff (5 min.)
(See NOTE 10 and 13)
16960 17390 18820 17390 18820 18820 - -
Maximum continuous 15110 17040 17040 17040 17040 17040 - -
Flat rate ambient
temperature
Takeoff
86ºF / 30 C
- -
- -
95ºF / 35 C
- -
86ºF / 30 C
- -
Maximum continuous 77ºF / 25 C - - - - - - - - - - - -
CONTROL SYSTEM
COMPONENT
Fuel Metering Unit
Full Authority Digital
Engine Control (FADEC)
Hardware
Software
Configuration Plug
Hardware
Engine Rating
Engine Configuration
N1 Trim Setting
Ignition System
2 Ignition Exciters
2 Ignition Plugs
Fuel Pump
2043M10
2043M11
2043M65
2162M48
2041M41P26
2041M42
2041M43
9238M66
1374M12
2043M12
- -
- -
- -
- -
2041M41P31
- -
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P30
- -
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P29
- -
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P28
- -
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P32
- -
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P27
- -
- -
- -
- -
- -
PAGE 1 2 3 4 5 6 7 8 9 10
REV. 14 12 12 14 12 13 12 12 14 12
LEGEND: "- -" INDICATES "SAME AS PRECEDING MODEL"
"---" NOT APPLICABLE
NOTE: SIGNIFICANT CHANGES ARE BLACK-LINED IN THE LEFT MARGIN.
I. MODELS (continued) CF34-10E2A1 CF34-10E5 CF34-10E5A1 CF34-10E6 CF34-10E6A1 CF34-10E7 CF34-10E7-B
FUEL Fuel and additive conforming to GE Jet Fuel Specification No. D50TF2 and GEK 112083, CF34-10E Installation
Manual, is applicable for all CF34-10E models.
OIL Oil conforming to GE Specification No. D50TF1 and GEK 112083, CF34-10E Installation Manual, is
applicable for all CF34-10E models.
PRINCIPAL
DIMENSIONS AND
MEASUREMENTS
Length, inches
Maximum diameter, inches
Weight, pounds (Dry)
Center of Gravity Location,
inches
Engine Station
Butt Line
Water Line
(14 CFR Part
33 Propulsion
System: see
Installation
Manual GEK
112083)
177.93
73.38 x 86.59
4584.2
208.2
99.2
100.4
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
II. MODELS CF34-10A16 CF34-10A16-B CF34-10A16-C CF34-10A16-D
TYPE
Dual rotor, axial flow, high bypass ratio turbofan with single stage fan, 3-stage low pressure compressor, 9-
stage high pressure compressor, annular combustion chamber, single stage high pressure turbine, 4-stage low
pressure turbine, a thrust reverser, aft core cowl, exhaust nozzle, starter, and a full authority digital engine
control (FADEC).
RATINGS (See NOTE 1)
Sea level static thrust, lb
Maximum takeoff (5 min.)
(See NOTES 10 and 13)
17640 - - - - - -
Normal takeoff (5 min.)
(See NOTE 10 and 13)
17300 - - - - - -
Maximum continuous 16110 - - - - - -
Flat rate ambient
temperature
Takeoff
86ºF / 30 C
- -
- -
- -
Maximum continuous 77ºF / 25 C - - - - - -
CONTROL SYSTEM
COMPONENT
Fuel Metering Unit 2044M33 - - - - - -
Full Authority Digital
Engine Control (FADEC)
Hardware
Software
Configuration Plug
Hardware
Engine Rating
Engine Configuration
N1 Trim Setting
Ignition System
2 Ignition Exciters
2 Ignition Plugs
Fuel Pump
2043M11
2413M46
2162M48
2041M41P34
2041M42
2041M43
9238M66
1374M12
2044M34
- -
- -
- -
2041M41P34
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P39
- -
- -
- -
- -
- -
- -
- -
- -
2041M41P40
- -
- -
- -
- -
- -
FUEL Fuel and additive conforming to GE Jet Fuel Specification No. D50TF2 and GEK 112093, CF34-10A Installation
Manual, is applicable for all models.
OIL Oil conforming to GE Specification No. D50TF1 and GEK 112093, C34-10A Installation Manual, is applicable
for all CF34-10A models.
TCDS E00070EN Page 4 of 10
II. MODELS (continued) CF34-10A16 CF34-10A16-B CF34-10A16-C CF34-10A16-D
PRINCIPAL
DIMENSIONS AND
MEASUREMENTS
Length, inches
Maximum diameter, inches
Weight, pounds (Dry)
Center of Gravity
Location, inches
Engine Station
Butt Line
Water Line
(14 CFR Part 33 Propulsion
System: see Installation
Manual GEK 112093)
158.6
79.313 x 71.534
4644
205.90
101.10
97.23
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
- -
CERTIFICATION BASIS:
(All 10E models)
CERTIFICATION BASIS:
(All 10A16 models)
(1) 14 Code of Federal Regulations (CFR), Part 33, effective February 1, 1965, as amended by amendments 33-1
through 33-20.
(2) 14 CFR Part 34, effective October 23, 2013, amendment 34-5A. In addition, 40 CFR Part 87, effective
July 18, 2012.
(3) Equivalent level of safety 8040-ELOS-04-NE-01 §33.83(c)(1) Vibration Test
Type Certificate
Model Date of Application Issued/Amended
CF34-10E5 February 9, 2001 December 22, 2004
CF34-10E5A1 February 9, 2001 December 22, 2004
CF34-10E6 February 9, 2001 December 22, 2004
CF34-10E6A1 February 9, 2001 December 22, 2004
CF34-10E2A1 January 2, 2006 July 20, 2006
CF34-10E7 January 2, 2006 July 20, 2006
CF34-10E7-B June 4, 2007 June 16, 2008
(1) 14 Code of Federal Regulations (CFR), Part 33, effective February 1, 1965, as amended by amendments 33-1
through 33-20.
(2) 14 CFR Part 34, effective May 24, 2024, amendment 34-7A.
(3) Equivalent level of safety 8040-ELOS-10-NE-01 §33.83(c)(1) Vibration Test
Type Certificate
Model Date of Application Issued/Amended Deleted
CF34-10A16 January 25, 2006 July 22, 2010
CF34-10A18 January 25, 2006 July 22, 2010 August 1, 2014
CF34-10A16-B April 30, 2018 August 28, 2019
CF34-10A16-C July 2, 2020 April 16, 2021
CF34-10A16-D July 2, 2020 April 16, 2021
See Note 11 (3) for detailed summary of the certification basis for fuel venting and exhaust emissions.
PRODUCTION CERTIFICATE CF34-10E/10A Production Certificate No. PC108
TCDS E00070EN Page 5 of 10
NOTE 1. ENGINE RATINGS
Engine ratings are based on calibrated test stand performance, and performance calculations are based on accepted parameter correction
methods documented in the production data folder. These calculations assume the following conditions:
(1) Static sea level standard conditions of 59° F and 29.92 inches Hg
(2) US standard atmosphere 1962 (zero humidity)
(3) No aircraft accessory loads or air extraction.
(4) Production engine inlet and production flight exhaust system
(5) Standard lower heating value of 18550 BTU/LB
(6) No anti-icing; no inlet distortion; no inlet screen losses; and 100% ram recovery.
NOTE 2. TEMPERATURE LIMITS
(1) Indicated maximum permissible temperatures are listed below. In addition, the CF34-10E2A1 model incorporates an EGT shunt of 30°C at fan
speeds above idle. Thus, for an indicated EGT of 1801°F (983°C), the measured EGT is 1747°F (953°C). All CF34-10E/10A series engines are
certified with a takeoff EGT transient allowance. This allowance applies to normal and maximum takeoff EGT, up to 5.5 °C for 2 seconds, 4.4 °C for
5 seconds, 3.6 °C for 15 seconds and 2.4 °C for 30 seconds.
Indicated Exhaust Gas Temperature (EGT*), °F (°C)
CF34-10E2A1 CF34-10E5 CF34-10E5A1 CF34-10E6 CF34-10E6A1 CF34-10E7 CF34-10E7-B
Maximum takeoff (5 min) 1801 (983) - - - - - - - - - - - -
Normal takeoff (5 min) 1801 (983) 1733 (945) 1801 (983) 1737 (947) 1801 (983) 1729 (943) - -
Maximum continuous 1760 (960) - - - - - - - - - - - -
At start-up, ground 1364 (740) - - - - - - - - - - - -
At start-up, inflight 1607 (875) - - - - - - - - - - - -
CF34-10A16 CF34-10A16-B CF34-10A16-C CF34-10A16-D
Maximum takeoff (5 min) 1801 (983) - - - - - -
Normal takeoff (5 min) 1744 (951) - - - - - -
Maximum continuous 1760 (960) - - - - - -
At start-up, ground 1364 (740) - - - - - -
At start-up, inflight 1607 (875) - - - - - -
*The exhaust gas temperature is measured by 9 probes, which are equally spaced and mounted in the second-stage low-pressure turbine vanes.
(2) Refer to GE Engine Manual GEK 112081 and GE Line Maintenance Manual GEK 112081-1 (CF34-10E all models), GEK 112091 (CF34-
10A all models) for inspection requirements when limits are exceeded.
(3) Oil temperature limit (oil supply temperature measured in the oil tank), °F (°C)
All 10E models All 10A models
Continuous operation 311 (155) - -
(4) Fuel inlet temperature (at pylon interface), °F (°C)
All 10E models All 10A models
Continuous operation 155 (68.3) 135 (57.2)
NOTES
TCDS E00070EN Page 6 of 10
NOTE 3. FUEL AND OIL PRESSURE LIMITS
(1) Fuel: For all 10E models, at engine pump inlet: minimum pressure of 5 PSID above the true vapor pressure of the fuel with a
vapor/liquid ratio of zero with aircraft boost operative. Operating range 5 PSIG to 50 PSIG. At engine motive flow
discharge: minimum pressure of 150 PSIG at idle or above. Operating range is 150 PSIG to 1209 PSIG. See GE
Installation Manual GEK 112083 for additional limits.
For 10A models, at engine pump inlet: minimum pressure of 5 PSID above the true vapor pressure of the fuel with a
vapor/liquid ratio of zero with aircraft boost operative. Operating range 5 PSIG to 50 PSIG. See GE Installation Manual
GEK 112093 for additional limits.
(2) Oil: Minimum oil pressure limit is 25 psid. For oil temperatures less than –20C, the minimum oil pressure is 5 psid for the first
two minutes following an engine start. After two minutes at idle or if the engine power is increased above idle, the minimum
oil pressure is 25 psid. See GE Installation Manual GEK 112083 (10E all models), GEK112093 (10A all models) for
additional limits.
NOTE 4. ACCESSORY DRIVE PROVISIONS LIMITS
All CF34-10E Models
CW - Clockwise CCW – Counter- Clockwise
Accessory Speeds are based on Core Speed: 17160 rpm
(1) -40 o F SLS
(2) HP is c onstant over the operating range with slight variations due to changes in efficiency. HP extraction is 74.8 HP at 7898 rpm (pad speed)
and 73.5 HP at 4618 rpm (pad speed). The 5-minute overload rating is 82.7 HP and the 5 second overload rating is 137.37
(3) 2112 in-lbs at 59oF SLS, 4200 in-lbs at -40o F SLS
(4) Overload at 4618 rpm (pad speed)
(5) 573 in-lbs at 626 rpm (pad speed)
(6) Includes oil and V band coupling
Accessory
Location
on AGB
Axis
Speed
(RPM)
HP
(Rated)
Direction of
Rotation
facing AGB
Torque (lb-in) Static /
Continuous /
Overload
Max Acc.
Wt. (lb)
Overhung
Moment
(lb-in)
Shear
Torque
(lb-in)
Lube & Scavenge
Oil Pump
Axis-J Aft
8575
7
CCW
300 (1) /48 / NA
10.3
33
750-850
IDG
Axis-G Fwd
7928
74.8 (2)
CW
675 (1) / 595 /
1129 (5 min) (4)
1605 (5 sec) (4)
81.2 (6) 720 Maximum 3144-3648
Air Turbine Starter
Axis-D Fwd
12281
NA
CW 2112, 4200 (3) / NA / NA 27.7 113 6300-7500
Hydraulic Pump
Axis-F Fwd
5567
35
CW
573 (1) (5) / 392 / 670 13.9 dry 38.4 2004 maximum
Alternator
Axis-J Fwd
8575
4
CW
NA / NA / NA
3.0
2.6
NA
Fuel Pump
Axis-E Aft
7928
55
CW
150/240/NA
28.6
142
1400-1540
TCDS E00070EN Page 7 of 10
NOTE 4. ACCESSORY DRIVE PROVISIONS LIMITS (continuation)
All CF34-10A models
Accessory Location on AGB Axis Speed (RPM) HP (Rated) Direction of Rotation facing AGB Torque (lb-in) Static / Continuous / Overload Max Weight (lb) Overhung Moment (lb-in) Shear Torque (lb-in)
Lube &
Scavenge
Oil Pump
Axis-F, AFT
7982
6.2
CCW
33 / 47 (1) / 56
16.2
59.94
750-850
IDG
Axis-F, FWD
7982
76.7
CW
675 (2) / 610 (3) / 2184 (4)
80
610
3150-3650
Air Turbine
Starter
Axis-C, FWD
12269
N/A
CW
NA / 3360 / NA
29.46
125.91
6300-7500
Hydraulic
Pump
Axis-D, AFT
5593
38.0
CW
550 / 108 / 670
14.70 43.07
2000 Max
Alternator
Axis-G, FWD
8604
0.38
CCW
NA / 3.5 / 5.8
3.04
2.16
N/A
Fuel Pump
Axis-E, FWD
7888
26.3
CW
90 / 210 / 353
21
73.94
1400-1540
CW - Clockwise CCW – Counter-Clockwise
Accessory Speeds are based on Core Speed: 17160 rpm
(1) Calculated at rated speed of 7982 rpm at 6 HP input.
(2) Cold start @ -40F and max ramp rate of 450 rpm/sec. Torque peaks at 500 rpm. Zero torque at zero speed.
(3) Calculated at continuous operating point 76.5 HP and 7898 rpm
(4) 5 sec max at 160 HP and 4618 rpm
NOTE 5. MODEL DESCRIPTION
Model Characteristics
CF34-10E2A1 Embraer Basic Model
CF34-10E5 Embraer Basic Model with additional thrust on Maximum Takeoff, Nominal Takeoff and Maximum
Continuous rating
CF34-10E5A1 Embraer Basic Model with additional thrust on Maximum Takeoff, Nominal Takeoff and Maximum
Continuous rating
CF34-10E6 Embraer Basic Model with additional thrust on Maximum Takeoff, Nominal Takeoff and Maximum
Continuous rating, with higher flat rate ambient temperature capability at Takeoff
CF34-10E6A1 Embraer Basic Model with additional thrust on Maximum Takeoff, Nominal Takeoff and Maximum
Continuous rating, with higher flat rate ambient temperature capability at Takeoff
CF34-10E7 Embraer Basic Model with additional thrust on Maximum Takeoff, Nominal Takeoff and Maximum
Continuous rating
CF34-10E7-B Embraer Business Jet Basic Model
CF34-10A16 COMAC Basic Model
CF34-10A16-B COMAC Business Jet Basic Model
CF34-10A16-C COMAC Basic Model with additional 5% thrust on Max Cruise rating
CF34-10A16-D COMAC Basic Model with additional 5% thrust on Max Cruise rating and additional 3% thrust on Max
Continuous rating at altitudes between 20,000 ft and 30,000 ft
TCDS E00070EN Page 8 of 10
NOTE 6 . TYPICAL AIRCRAFT ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES, WITH AIRCRAFT LEVEL
REQUIREMENTS PROVIDED AS PART OF ENGINE TYPE DESIGN:
For the CF34-10E/10A model series, the 14CFR Part 33 engine type design definition includes thrust reverser system, which is part of
the nacelle system, and is identified as follows:
Engine Parts List Thrust Reverser Parts List
CF34-10E2A1GXX 601E0001-5XX
CF34-10E5GXX 601E0001-5XX
CF34-10E5A1GXX 601E0001-5XX
CF34-10E6GXX 601E0001-5XX
CF34-10E6A1GXX 601E0001-5XX
CF34-10E7GXX 601E0001-5XX
CF34-10E7-BGXX 601E0001-5XX
CF34-10A16GXX 604C0010-5XX
CF34-10A16-BGXX 604C0010-5XX
CF34-10A16-CGXX 604C0010-5XX
CF34-10A16-DGXX 604C0010-5XX
The GE Engine Manual, GEK 112081 and GE Line Maintenance Manual GEK 112081-1 (CF34-10E all models) and GEK 112091
(CF34-10A all models), defines the installation requirements for the engine GXX or –5XX indicates all parts list designations, for
example G01, G02, -501, -502, etc.
NOTE 7. AIRCRAFT ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES INSTALLED ON THE ENGINE THAT ARE
NOT PART OF ENGINE TYPE DESIGN:
Not Applicable
NOTE 8. SPECIAL ANTI-ICING OR DE-ICING REQUIREMENTS
Not Applicable
NOTE 9. ENGINE MOUNT SYSTEM PROVISIONS
Not Applicable
NOTE 10. POWER BOOST, INJECTION OR AUGMENTATION SYSTEMS AND LIMITS AS APPLICABLE
This engine is equipped with an automatic power reserve function for takeoff operation with one engine inoperative. During takeoff,
when the automatic power reserve function is activated, the engine control of the inoperative engine sends an input signal to the
engine control of the operating engine. Upon receiving this signal, the engine thrust of the operating engine automatically increases
from normal takeoff (NTO) or lower thrust to the corresponding, pre-determined maximum takeoff (MTO) thrust. Full MTO thrust is
available to the pilot at any time by throttle selection.
The engine control sy stem also incorporates schedules that assure a fully degraded engine, during operation at the NTO of lower thrust,
will achieve the specified MTO thrust without exceeding the engine operating limits when the automatic power reserve function is
activated.
NOTE 11. SPECIAL INSTALLATION REQUIREMENT
(1) The maximum permissible inlet distortion for these engines is specified in GE Installation Manual GEK 112083 (CF34-10E
all models) and GEK 112093 (CF34-10A all models). Ground operational limits and procedures for operation in crosswind
are specified in GE Specific Operating Instructions GEK 112084 (CF34-10E all models) and GEK 112094 (CF34-10A all
models).
(2) Criteria pertaining to the dispatch and maintenance requirements for the engine control systems are specified in the airworthiness
sections of the Engine Manuals, GEK 112081 (CF34-10E all models) and GEK 112091 (CF34-10A all models), which define
the various configurations and maximum operating intervals.
TCDS E00070EN Page 9 of 10
NOTE 11. SPECIAL INSTALLATION REQUIREMENT (continuation)
(3) The following emissions standards promulgated in 14 CFR Part 34, Amendment 5A, effective October 23, 2013, and 40
CFR Part 87, effective July 18, 2012, have been complied with for: CF34-10E2A1, CF34-10E5, CF34-10E5A1, CF34-
10E6, CF34-10E6A1, CF34-10E7, CF34-10E7-B.
• Fuel Venting emission standards: 14 CFR 34.10(a) and 34.11; in addition, 40 CFR 87.10(a) and 87.11
• Smoke Number (SN) emission standards: 14 CFR 34.21(e)(2); in addition, 40 CFR 87.23(c)(1)
• Carbon Monoxide (CO) emission standards: 14 CFR 34.21(d)(1)(ii); in addition, 40 CFR 87.23(c)(1)
• Hydrocarbons (HC) emission standards: 14 CFR 34.21(d)(1)(i); in addition, 40 CFR 87.23(c)(1)
• Oxides of Nitrogen (NOx) emission standards: 14 CFR 34.23(b)(1); in addition, 40 CFR 87.23(c)(3)
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, July
2017, 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.1(ii) for Oxides of Nitrogen (also known as CAEP/8), and
• Part III, Chapter 4, Section 4.2.2 for non-volatile Particulate Matter (also known as CAEP/10)
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: CF34-10A16, CF34-10A16-B, CF34-10A16-C, and
CF34-10A16-D.
• 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)
• Hydrocarbons (HC) Emission Standards: 14 CFR 34.21(d)(1)(i); in addition, 40 CFR 1031.60(c)
• Carbon Monoxide (CO) Emission Standards: 14 CFR 34.21(d)(1)(ii); in addition, 40 CFR 1031.60(d)
• 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.1(ii) 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)
NOTE 12. MANUFACURER’S SERVICE BULLETINS OR OTHER INSTRUCTIONS
Recommended maintenance inspection intervals are published in CF34-10E Service Bulletin 71-0000 and CF34-10A GE Service
Bulletin 71-0000.
NOTE 13. SPECIAL OPERATING PROCEDURES OR LIMITATIONS
(1) The time limit at the normal takeoff rating is five minutes and shall include any time accumulated above the normal takeoff rating
for that takeoff. The 5-minute takeoff time limit may be extended to 10 minutes for one engine inoperative operation in multi-
engine aircraft.
(2) Refer to Operating Instructions GEK 112084 (CF34-10E all models) and GEK 112094 (CF34-10A all models) for
engine warm-up procedure.
(3) Refer to Operating Instructions GEK 112084 (CF34-10E all models) and GEK 112094 (CF34-10A all models) for thrust reverser
operation.
NOTE 14. SPECIAL REPAIR OR OVERHAUL LIMITATIONS
Not applicable.
NOTE 15. APPLICABLE INSTALLATION, MAINTENANCE AND OVERHAUL MANUALS
The following manuals are approved or accepted for the CF34-10E/10A model series:
CF34-10E (all models) CF34-10A (all models)
TCDS E00070EN Page 10 of 10
Operating Instructions GEK 112084 GEK 112094
Installation Manual GEK 112083 GEK 112093
Engine Manual GEK 112081 GEK 112091
Line Maintenance Manual GEK112081-1 NA
NOTE 16. IMPORT REQUIREMENTS FOR FOREIGN MANUFACTURED ENGINES
Not Applicable
NOTE 17. LIFE LIMITED PARTS INFORMATION
Life limits established for critical components and mandatory inspection requirements are specified in the Airworthiness Limitation
Section of GE Engine Manual GEK 112081 (CF34-10E all models) and GEK 112091 (CF34-10A all models).
NOTE 18. MILITARY MODEL INFORMATION
Not Applicable
NOTE 19. MAXIMUM PERMISSIBLE MAIN ROTOR SPEEDS
CF34-10E
(all models)
CF34-10A16
(All models)
Low pressure rotor (N1), rpm
Maximum takeoff
Normal takeoff
Maximum continuous
High pressure rotor (N2), rpm
Maximum takeoff
Normal takeoff
Maximum continuous
6325
6325
6325
18018
18018
18018
6325
6325
6325
18018
18018
18018
Refer to GE Engine Manual GEK 112081 and GE Line Maintenance Manual GEK 112081-1 (all 10E models), GEK112091 (10A all
models), and other manual or inspection requirements when limits are exceeded.
100 percent N1 rotor speed is 5954.4 rpm, 100 percent N2 rotor speed is 17,160 rpm (all 10E/10A models).
NOTE 20. OUTPUT/PROPELLER SHAFT TORQUE LIMITS
Not Applicable
NOTE 21. MAXIMUM PERMISSIBLE BLEED AIR EXTRACTION
Air Bleed Extraction - maximum customer air bleed extraction is as follows:
Customer bleed air is available from either stage 5 or 9 (compressor discharge) of the compressor at all operating conditions at or above
idle (No compressor bleed is permitted below idle). Customer bleed is scheduled to switch from stage 9 bleed at low power operation to
stage 5 bleed at high power operation as described in GE Installation Manual GEK 112083 (CF34-10E all models) and GEK 112093
(CF34-10A all models).
CF34-10E/10A (all models)
Location Maximum Demonstrated Bleed Air (% of Total Compressor Airflow)
Compressor Stage 5 8.0
Compressor Stage 9 (Compressor Discharge) 12.0
Maximum Allowable Bleed 12.0
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