# TCDS E00051EN: BRP-Rotax GmbH & Co KG

- Type: Type certificate data sheet
- Status: Current
- Holder: BRP-Rotax GmbH & Co KG
- Revision: 9
- Revised: March 2, 2026
- Product: Engine
- Certification basis: Part 33
- Registered aircraft: 2,228, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/f9/66/f966ad424a4066a6f93415550d357c2eb8fa876eda176d8d560f53fce6a35392
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162918864420260303164002.0001
- Page: https://openairdocs.org/tcds/E00051EN

## Models (14)

As the data sheet lists them.

- 912 S3
- 912 F3
- 912 S2
- 912 F4
- 912 F2
- 912 S4
- 915 iSc2 C24
- 915 iSc3 C24
- 912 iSc2 Sport
- 912 iSc3 Sport
- 916 iSc2 A
- 916 iSc3 A
- 916 iSc2 C24
- 916 iSc3 C24

## What the data sheet says

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

```text
* 
 PAGE  1  2  3  4 5 6 7 8 9 10 11 
 REV. 9 9 8 9 9 9 9 9 9 9 8 
    LEGEND:  "- -" INDICATES "SAME AS PRECEDING MODEL" 
                   "---" INDICATES "DOES NOT APPLY" 
 NOTICE:    SIGNIFICANT CHANGES, IF ANY 
                   ARE BLACK-LINED IN THE LEFT MARGIN.  
                
 
 
 
 
U.S. DEPARTMENT OF TRANSPORTATION 
 
FEDERAL AVIATION ADMINISTRATION  
 
TYPE CERTIFICATE DATA SHEET E00051EN 
 
 
 
TCDS NUMBER  E00051EN 
 
REVISION: 9 
DATE: March 2, 2026   
 
BRP-Rotax GmbH & Co KG 
 
MODELS: 
 
ROTAX 
912 F2 912 F3 912 F4 
912 S2 912 S3 912 S4 
915 iSc2 C24 915 iSc3 C24 
912 iSc2 Sport 912 iSc3 Sport 
916 iSc2 A 916 iSc3 A 
916 iSc2 C24 916 iSc3 C24 
 
Engines of models described herein conforming with this data sheet (which is part of Type Certificate Number E00051EN) 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 BRP-Rotax GmbH & Co KG 
 Rotaxstrasse 1 
 A-4623 Gunskirchen, Austria 
 
TYPE CERTIFICATE HOLDER RECORD BRP-Rotax GmbH & Co KG on June 15, 2016 
 BRP--POWERTRAIN GMBH & CO KG on December 18, 2003 
 Bombardier- Rotax GmbH 
 (Name changes of TC Holder) 
 
I. MODELS, 912 series 912 F2 912 F3 912 F4 912 S2 912 S3 912 S4 
TYPE (See NOTE 5) Four cylinder, horizontally opposed, four stroke engine, reduction gear driven, liquid 
cooled cylinder head's, ram air cooled cylinders, dry sump pressure lubrication, dual 
magneto high-voltage condenser ignition, contactless, two constant depression 
carburetors, electric starter, generator, fuel pump, vacuum pump. 
RATINGS 
  Takeoff power (5 min.) : 
       (sea level pressure altitude) 
 
 
  Max. continuous power : 
       (sea level pressure altitude) 
 
 
59.6 kW(81 
HP) at 5,800 
rpm 
 
58 kW(79 
HP) at 
5,500 rpm 
 
 
- - 
 
 
 
- - 
 
- - 
 
 
 
- - 
 
73.5 kW(99 
HP) at 5,800 
rpm 
 
69 kW(93 
HP) at 5,500 
rpm 
 
- - 
 
 
 
- - 
 
- - 
 
 
 
- - 
FUEL For specifications see Operators Manual  
OIL For specifications see Operators Manual  
       CAPACITY Maximum: 0.79 Gal / 3.0 L      Minimum: 0.66 Gal / 2.5L 
       COMSUMPTION LIMIT 0.016 Gal / 0.06 L per hour  
FUEL PUMP Mechanical pump 
ENGINE SPEED MEASUREMENT 
(rpm) 
Electronic tachometer connector and optional mechanical tachometer drive 
WEIGHT (dry)  (See NOTE 11) 57.1 kg  
(125.9 lbs) 
59.8 kg  
(131.8 lbs) 
57.1 kg  
(125.9 lbs) 
58.3 kg 
(128.5lbs) 
61 kg 
(134.5 lbs) 
58.3 kg 
(128.5 lbs) 
DISPLACEMENT 1211 cm3 
(73.9 in3) 
- - - - 1352 cm 3 
(82.5 in 3) 
- - 
 
- -

TCDS E00051EN            PAGE 2 
 
I. MODELS – 912 series(Continued) 912 F2 912 F3 912 F4 912 S2 912 S3 912 S4 
BORE 
 
79.5 mm 
(3.13 in.) 
- - - - 84 mm 
(3.3 in.) 
- - - - 
STROKE 61 mm 
(2.40 in.) 
- - - - 61 mm 
(2.40 in.) 
- - - - 
COMPRESSION RATIO 9.0 : 1 - - - - 10.5:1 - - - - 
PROPELLER ROTATION 
 
CCW - - - - - - - - - - 
PROPELLER FLANGE P.C.D. 75 
mm, 80 
mm, and 4 
inch 
diameter 
for fixed 
propeller 
P.C.D. 75 
mm, 80 mm, 
and 4 inch 
diameter 
with drive 
for 
hydraulic 
gov. for 
constant 
speed 
propeller 
P.C.D. 75 
mm, 80 
mm,  4 
inch 
diameter 
prepared 
for 
hydraulic 
gov. for 
constant 
speed 
propeller 
P.C.D. 75 
mm, 80 
mm, and 4 
inch 
diameter 
for fixed 
propeller 
P.C.D. 75 
mm, 80 
mm, and 4 
inch 
diameter 
with drive 
for 
hydraulic 
gov. for 
constant 
speed 
propeller 
P.C.D. 75 
mm, 80 
mm, and 4 
inch 
diameter 
with drive 
for 
hydraulic 
gov. for 
constant 
speed 
propeller 
GEAR REDUCTION 
    (crankshaft to prop) 
2.2727: 1 - - - - 2.4286:1 - - - - 
PROPELLER CONTROL --- --- adapter and 
drive for 
hydraulic 
constant 
speed 
propeller 
--- --- adapter and 
drive for 
hydraulic 
constant 
speed 
propeller 
 
 
II. MODELS, 915 iSc series 915 iSc2 C24 915 iSc3 C24 
TYPE (See NOTE 5) Four cylinder horizontally opposed, four stroke piston engine with liquid cooled 
cylinder heads, ram-air cooled cylinders, dry sump forced lubrication, turbocharger 
with intercooler, exhaust system, controlled by a dual channel Full Authority Digital 
Engine Control (FADEC) system for ignition and injection and a regulator type with 
a 28V System Interface for power exchange to and from a 28V aircraft system. The 
engine is equipped with a reduction gear box with integrated torsion shaft, 
dampening clutch and overload protection clutch to reduce the crankshaft speed to 
the designed propeller shaft speed.  
RATINGS 
  Takeoff power (5 min.) : 
       (sea level pressure altitude) 
 
  Max. continuous power : 
       (sea level pressure altitude up to 
critical altitude of 15000 ft /4572 m) 
 
 
104 kW(139.5 HP) at 5,800 rpm 
 
 
99 kW(132.8 HP at 5,500 rpm 
 
FUEL See Operators Manual: 
FUEL PUMP Electrical fuel pump (not engine type design) 
OIL For specifications see Operators Manual 
       CAPACITY Maximum: 0.79 Gal / 3.0 L      Minimum: 0.66 Gal / 2.5L 
       COMSUMPTION LIMIT 0.016 Gal / 0.06 L per hour  
ENGINE SPEED MEASUREMENT 
(rpm) 
Electronic tachometer connector 
WEIGHT (dry)  (See NOTE 11) 85.3 kg  (188.1 lbs) 85.9 kg (189.4 lbs) 
DISPLACEMENT 1352 cm 3(82.5 in 3) - - 
BORE 84 mm (3.31 in.) - - 
STROKE 61 mm (2.40 in.) - - 
COMPRESSION RATIO 8.2:1 - - 
PROPELLER ROTATION CCW - -

TCDS E00051EN            PAGE 3 
 
II. MODELS, 915 iSc series (cont.) 915 iSc2 C24 915 iSc3 C24 
PROPELLER FLANGE P.C.D. 75 mm, 80 mm, and 4 inch 
diameter for fixed propeller 
P.C.D. 75 mm, 80 mm, and 4 inch 
diameter with drive for hydraulic gov. 
for constant speed propeller 
GEAR REDUCTION 
    (crankshaft to prop) 
2.5454 : 1 - - 
PROPELLER CONTROL --- Adapter and drive for hydraulic constant 
speed propeller 
 
 
III. MODELS, 912 iSc series 912 iSc2 Sport 912 iSc3 Sport 
TYPE (See NOTE 5) The engine is a 4 cylinder horizontally opposed, 4-stroke piston engine with liquid 
cooled cylinder heads, ram-air cooled cylinders, dry sump forced lubrication, 2 
electrical fuel pumps, exhaust system and it is controlled by a dual channel Full 
Authority Digital Engine Control (FADEC) system for ignition and injection. The 
engine is equipped with a reduction gear box with integrated shock absorber (dog 
clutch type) and overload protection to reduce the crankshaft speed to the 
designed propeller shaft speed. 
RATINGS 
  Takeoff power (5 min.) : 
       (sea level pressure altitude) 
 
  Max. continuous power : 
       (sea level pressure altitude) 
 
 
73.5 kW(99 HP) at 5,800 rpm 
 
 
72 kW(96.6 HP) at 5,500 rpm 
 
FUEL See Operators Manual: 
FUEL PUMP Dual Electrical fuel pumps 
OIL For specifications see Operators Manual 
       CAPACITY Maximum: 0.79 Gal / 3.0 L      Minimum: 0.66 Gal / 2.5L 
       COMSUMPTION LIMIT 0.016 Gal / 0.06 L per hour  
ENGINE SPEED MEASUREMENT 
(rpm) 
Electronic tachometer connector 
WEIGHT (dry)  (See NOTE 11) 63.6 kg  (140.2 lbs) 64.4 kg (142 lbs) 
1 External alternator 3.0 kg  (6.61 lbs) - - 
DISPLACEMENT 1352 cm 3(82.5 in 3) - - 
BORE 84 mm (3.31 in.) - - 
STROKE 61 mm (2.40 in.) - - 
COMPRESSION RATIO 10.8:1 - - 
PROPELLER ROTATION CCW - - 
PROPELLER FLANGE P.C.D. 75 mm, 80 mm, and 4 inch 
diameter for fixed propeller 
P.C.D. 75 mm, 80 mm, and 4 inch 
diameter with drive for hydraulic gov. 
for constant speed propeller 
GEAR REDUCTION 
    (crankshaft to prop) 
2.4286 : 1 - - 
PROPELLER CONTROL --- Adapter and drive for hydraulic constant 
speed propeller

TCDS E00051EN            PAGE 4 
 
IV. MODELS, 916 iSc series 916 iSc2 A 916 iSc3 A 916 iSc2 C24 916 iSc3 C24 
TYPE (See NOTE 5) Four cylinder horizontally opposed, four 
stroke piston engine with liquid cooled 
cylinder heads, ram-air cooled 
cylinders, dry sump forced lubrication, 
turbocharger with intercooler, exhaust 
system, controlled by a dual channel 
Full Authority Digital Engine Control 
(FADEC) system for ignition and 
injection. The engine is equipped with a 
reduction gear box with integrated 
torsion shaft, dampening clutch and 
overload protection clutch to reduce the 
crankshaft speed to the designed 
propeller shaft speed and an adjustable 
exhaust system. 
Four cylinder horizontally opposed, four 
stroke piston engine with liquid cooled 
cylinder heads, ram-air cooled 
cylinders, dry sump forced lubrication, 
turbocharger with intercooler, exhaust 
system, controlled by a dual channel 
Full Authority Digital Engine Control 
(FADEC) system for ignition and 
injection and a regulator type with a 
28V System Interface for power 
exchange to and from a 28V aircraft 
system. The engine is equipped with a 
reduction gear box with integrated 
torsion shaft, dampening clutch and 
overload protection clutch to reduce the 
crankshaft speed to the designed 
propeller shaft speed and an adjustable 
exhaust system. 
RATINGS 
  Takeoff power (5 min.) : 
       (sea level pressure altitude) 
 
  Max. continuous power : 
       (sea level pressure altitude) 
 
 
117 kW(160 HP) at 5,800 rpm 
 
 
101 kW(137 HP) at 5,500 rpm 
 
FUEL See Operators Manual: 
FUEL PUMP Electrical fuel pump (not engine type design) 
OIL For specifications see Operators Manual 
       CAPACITY Maximum: 0.79 Gal / 3.0 L      Minimum: 0.66 Gal / 2.5L 
       COMSUMPTION LIMIT 0.016 Gal / 0.06 L per hour  
ENGINE SPEED MEASUREMENT 
(rpm) 
Electronic tachometer connector 
WEIGHT (dry)  (See NOTE 11) 85.8 kg  (189.2 
lbs) 
86.4 kg (190,5 
lbs) 
86.5 kg  (190.7 
lbs) 
87.1 kg (192,0 
lbs) 
DISPLACEMENT 1352 cm3(82.5 in 3) 
BORE 84 mm (3.31 in.) 
STROKE 61 mm (2.40 in.) 
COMPRESSION RATIO 8.2 : 1 
PROPELLER ROTATION CCW 
PROPELLER FLANGE P.C.D. 80 mm, 
and 4 inch 
diameter for fixed 
propeller 
P.C.D. 80 mm, 
and 4 inch 
diameter with 
drive for 
hydraulic gov. for 
constant speed 
propeller 
P.C.D. 80 mm, 
and 4 inch 
diameter for fixed 
propeller 
P.C.D. 80 mm, 
and 4 inch 
diameter with 
drive for hydraulic 
gov. for constant 
speed propeller 
GEAR REDUCTION 
    (crankshaft to prop) 
2.5454 : 1 
PROPELLER CONTROL --- Adapter and drive 
for hydraulic 
constant speed 
propeller 
--- Adapter and drive 
for hydraulic 
constant speed 
propeller

TCDS E00051EN            PAGE 5 
 
CERTIFICATION BASIS 14-CFR, part 33,  Airworthiness Standards: Aircraft Engines, effective  
February 1, 1965, as amended by 33-1 through 33-15, inclusive, including Federal Aviation 
Administration Special Condition, NPRM Doc. 24922, Notice 92-14. 
 
  DATE OF   DATE TC ISSUED 
MODEL  APPLICATION   OR REVISED 
912 F2  November 18, 1993  February 2, 1995 
912 F3  November 18, 1993  February 2, 1995 
912 F4  November 18, 1993  February 2, 1995 
912 S2  December 28, 1998  August 12, 1999 
912 S3  December 28, 1998  August 12, 1999 
912 S4  December 28, 1998  August 12, 1999 
 
14-CFR, part 33,  Airworthiness Standards: Aircraft Engines, effective  
February 1, 1965, as amended by 33-1 through 33-34, inclusive. 
915 iSc2 C24 October 4, 2021  November 23, 2021 
915 iSc3 C24 October 4, 2021  November 23, 2021 
 
14-CFR, part 33,  Airworthiness Standards: Aircraft Engines, effective  
February 1, 1965, as amended by 33-1 through 33-34, inclusive. 
912 iSc2 Sport November 3, 2022  March 27, 2023 
912 iSc3 Sport November 3, 2022  March 27, 2023 
 
14-CFR, part 33,  Airworthiness Standards: Aircraft Engines, effective  
February 1, 1965, as amended by 33-1 through 33-34, inclusive. 
916 iSc2 A March 24, 2025  March 2, 2026 
916 iSc3 A March 24, 2025  March 2, 2026 
916 iSc2 C24 March 24, 2025  March 2, 2026 
916 iSc3 C24 March 24, 2025  March 2, 2026 
 
The Austrian aviation authority, Austro Control GmbH (ACG), originally type certificated 
the 912 engines.  The FAA validated this product under U.S. Type Certificate Number 
E00051EN.  Effective September 28, 2003, the European Aviation Safety Agency (EASA) 
began oversight of this product on behalf of ACG. 
 
IMPORT REQUIREMENTS 
 
To be considered eligible for installation on United Sates registered aircraft, each new 
engine to be exported to the United States with ACG or EASA airworthiness approval shall 
have a Joint Airworthiness Authority (JAA) or EASA Form 1, Authorized Release 
Certificate.  The JAA or EASA Form 1 should state that the engine conforms to the type 
design approved under the U.S. Type Certificate E00051EN, is in a condition for safe 
operation and has under gone a final operational check. 
 
 
NOTES 
 
NOTE 1 ENGINE RATINGS 
  
The power ratings for the 915 iSc C24 series, 916 iSc A series and 916 iSc C24 series for Take-off Power and 
Maximum Continuous Power have been determined without accessories (such as governor,etc.) 
 
NOTE 2 TEMPERATURE LIMITS 
 Models 912 F2 / F3/ / F4 912 S2 / S3/ / S4 915 iSc2 C24 
915 iSc3 C24 
912 iSc2 Sport 
912 iSc3 Sport 
916 iSc2 A 
916 iSc3 A 
916 iSc2 C24 
916 iSc3 C24 
Max. oil-temperature at 
inlet ( C) / ( F) 
140/284 130/266 130/266 120/248 
Max. cylinder-head 
temperature ( C) / ( F) 
150/302 135/275 Not Applicable Not Applicable 
 Max. coolant temperature 
( C) / ( F) 
120/248  (engine type designation extended with 
suffix -01) 
120/248 120/248 
  Monitored via cylinder head temperature, 
otherwise monitored via coolant temperature for 
engine type designation extended with suffix -01

TCDS E00051EN            PAGE 6 
 
NOTE 3 
 
 FUEL AND OIL PRESSURE LIMITS 
 
 Models 912 F2 / F3 / F4 / S2 / S3 / S4 915 iSc2 C24  
915 iSc3 C24 
916 iSc2 A 
916 iSc3 A 
916 iSc2 C24 
916 iSc3 C24 
912 iSc2 Sport  
912 iSc3 Sport 
Fuel Pressure 0.15 bar (2.18 psi) – minimum 2.9 bar/42.0 psi 2.8 bar/40.61 psi 
 0.50 bar (7.25 psi) – maximum 3.2 bar/46.41 psi 3.2 bar/46.41 psi 
 At inlet to carburetor. The delivery pressure of a 
fuel pump connected in series (backing pump) 
must not exceed 0.3 bar (4.4 psi) to  
ensure not to override the float valve in the 
carburetor. 
  
 
 Models 912 F2 / F3 / F4 / S2 / S3 / S4 / 915 iSc2 C24 / 915 iSc3 C24 / 912 iSc2 Sport / 912 iSc3 Sport / 
916 iSc2 A / 916 iSc3 A / 916 iSc2 C24 / 916 iSc3 C24 
Oil Pressure normal operating range above 3500 rpm: 2.0 bar –5.0 bar (29-72.5 psi)* 
 idling:  0.8 bar (11.6 psi) – minimum** 
  starting & warm-up:  7 bar (101.5 psi) – maximum 
  For 912F up to engine Number 4412.764: 
*normal operation: 1.5 bar –5.0 bar (22-73 psi) 
**idling: 1.5 bar (22 psi) - minimum 
 
NOTE 4. ACCESSORY DRIVE PROVISIONS LIMITS 
 
 
Accessory 912 
F2 
912 
F3 
912 
F4 
Rotation,  
facing 
drive pad 
Speed Ratio to crankshaft 
i=2.2727      /i=2.4286 ** 
Maximum 
Torque 
Overhung 
moment 
(max.) 
Vacuum pump ** --- ** CCW 0.585 : 1       0.548:1** 0.1 Nm/ 0.4 Nm 
Governor drive --- * --- CCW 0.585 : 1         0.548:1** 2.0 Nm 1.04 Nm 
Tachometer 
drive 
** ** ** CW 0.25 : 1 --- --- 
"---" indicates "does not apply" 
"*" standard feature 
"**" optional feature 
"CW" clockwise 
"CCW" counter clockwise 
 
Accessory 912 
S2 
912 
S3 
912 
S4 
Rotation,  
facing 
drive pad 
Speed Ratio, to 
crankshaft 
i=2.4286  
Maximum 
Torque 
Overhun
g 
moment 
(max.) 
Vacuum pump ** --- ** CCW 0.548:1 0.9 Nm2 0.4 Nm 
Governor drive --- * --- CCW 0.548:1 1.8 Nm 1.04 Nm 
Tachometer 
drive 
** ** ** CW 0.25 : 1 --- --- 
"---" indicates "does not apply" 
"*" standard feature 
"**" optional feature 
"CW" clockwise 
"CCW" counter clockwise

TCDS E00051EN            PAGE 7 
 
NOTE 4. ACCESSORY DRIVE PROVISIONS LIMITS (Continued) 
 
Accessory 915 iSc2 
C24 
915 iSc3 
C24 
Rotation,  
facing drive pad 
Speed Ratio, 
to crankshaft 
i = 2.5454 
Maximum 
Torque 
Overhung 
moment 
(max.) 
Vacuum 
pump 
** --- CCW 0.518 : 1 0.9 Nm 0.4 Nm 
Governor --- * CCW 0.518 : 1 1.8 Nm 1.04 Nm 
"---" indicates "does not apply" 
"*" standard feature 
"**" optional feature 
"CW" clockwise 
"CCW" counter clockwise 
 
Accessory 912 iSc2 
Sport 
912 iSc3 
Sport 
Rotation,  
facing drive pad 
Speed Ratio, 
to crankshaft 
i = 2.4286 
Maximum 
Torque 
Overhung 
moment 
(max.) 
Vacuum 
pump 
** --- CCW 0.548 : 1 0.9 Nm 0.4 Nm 
Governor --- * CCW 0.548 : 1 1.8 Nm 1.04 Nm 
"---" indicates "does not apply" 
"*" standard feature 
"**" optional feature 
"CW" clockwise 
"CCW" counter clockwise 
 
Accessory 916 iSc2 A 
916 iSc2 C24 
916 iSc3 A 
916 iSc3 C24 
Rotation,  
facing drive 
pad 
Speed Ratio, 
to crankshaft 
i = 2.4286 
Maximum 
Torque 
Overhung 
moment 
(max.) 
Vacuum 
pump 
--- --- CCW 0.518 : 1 0.9 Nm 0.4 Nm 
Governor --- * CCW 0.518 : 1 1.8 Nm 1.04 Nm 
"---" indicates "does not apply" 
"*" standard feature 
"**" optional feature 
"CW" clockwise 
"CCW" counter clockwise 
 
 
NOTE 5. 
 
MODEL DESCRIPTION: 
 912 F2 Basic model; four stroke, four cylinder horizontally opposed, one central camshaft, push-rods, 
overhead valves, liquid cooled cylinder heads, ram air-cooled cylinders, dry sump forced lubrication, 
dual breakerless capacitive discharge ignition, two constant depression carburetors, mechanical fuel 
pump, fixed pitch propeller configuration, drive output via reduction gear with integrated shock 
absorber and overload protection, electric starter, integrated AC generator, vacuum pump drive 
(optional), external generator (optional). 
 912 F3 Same as described for F2, except; additional drive and adapter for hydraulic governor, hydraulic 
governor and propeller shaft for constant speed propeller 
 912 F4 Same as F3 except; fixed pitch propeller, prepared for hydraulic governor for constant speed 
propeller (without drive, adapter and governor).

TCDS E00051EN            PAGE 8 
 
 
NOTE 5. 
 
MODEL DESCRIPTION (Continued) 
 912 S2 Similar to F2 in I above, except; increased displacement and horsepower, and larger reduction 
gearbox. 
 912 S3 Same as S2 except;  additional drive and adapter for hydraulic governor, hydraulic governor and 
propeller shaft for constant speed propeller. 
 912 S4 Same as S3 except; fixed pitch propeller, prepared for hydraulic governor for constant speed 
propeller (without drive, adapter and governor). 
 912 F2/3/4 engine, and 
912 S2/3/4 engine type 
designation extended with 
suffix -01 
Same as described above, except; engine temperature measurement methods have been amended 
from CHT (cylinder head temperature) and CT (coolant temperature) to only CT (coolant 
temperature).  Therefore only the coolant temperature limit applies. For further details refer to 
Service Bulletins SB-912-066 and SB-912-068 (respectively latest revision). 
 915 iSc2 C24 Four cylinder horizontally opposed, four stroke piston engine with liquid cooled cylinder heads, ram-
air cooled cylinders, dry sump forced lubrication, turbocharger with intercooler, exhaust system, 
controlled by a dual channel Full Authority Digital Engine Control (FADEC) system for ignition and 
injection and a regulator type with a 28V System Interface for power exchange to and from a 28V 
aircraft system. The engine is equipped with a reduction gear box with integrated torsion shaft, 
dampening clutch and overload protection clutch to reduce the crankshaft speed to the designed 
propeller shaft speed. 
 915 iSc3 C24 Same as described for 915 iSc2 C24, except; additional drive and adapter for hydraulic governor 
propeller shaft for constant speed propeller 
 912 iSc2 Sport Four cylinder horizontally opposed, four stroke piston engine with liquid cooled cylinder heads, ram-
air cooled cylinders, dry sump forced lubrication, 2 electrical fuel pumps, exhaust system, controlled 
by a dual channel Full Authority Digital Engine Control (FADEC) system for ignition and injection. 
The engine is equipped with a reduction gear box with integrated shock absorber (dog clutch type) 
and overload protection to reduce the crankshaft speed to the designed propeller shaft speed. 
 912 iSc3 Sport Same as described for 912 iSc2 Sport, except; additional drive and adapter for hydraulic governor 
propeller shaft for constant speed propeller 
 916 iSc2 A Four cylinder horizontally opposed, four stroke piston engine with liquid cooled cylinder heads, ram-
air cooled cylinders, dry sump forced lubrication, turbocharger with intercooler, exhaust system, 
controlled by a dual channel Full Authority Digital Engine Control (FADEC) system for ignition and 
injection. The engine is equipped with a reduction gear box with integrated torsion shaft, dampening 
clutch and overload protection clutch to reduce the crankshaft speed to the designed propeller shaft 
speed and an adjustable exhaust system. 
 916 iSc3 A Same as described for 916 iSc2 A, except; additional drive and adapter for hydraulic governor 
propeller shaft for constant speed propeller 
 916 iSc2 C24 Four cylinder horizontally opposed, four stroke piston engine with liquid cooled cylinder heads, ram-
air cooled cylinders, dry sump forced lubrication, turbocharger with intercooler, exhaust system, 
controlled by a dual channel Full Authority Digital Engine Control (FADEC) system for ignition and 
injection and a regulator type with a 28V System Interface for power exchange to and from a 28V 
aircraft system. The engine is equipped with a reduction gear box with integrated torsion shaft, 
dampening clutch and overload protection clutch to reduce the crankshaft speed to the designed 
propeller shaft speed and an adjustable exhaust system. 
 916 iSc3 C24 Same as described for 916 iSc2 C24, except; additional drive and adapter for hydraulic governor 
propeller shaft for constant speed propeller 
 
 
NOTE 6 TYPICAL AIRCRAFT ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES, WITH 
AIRCRAFT LEVEL REQUIREMENTS, PROVIDED AS PART OF ENGINE TYPE DESIGN: 
 
Not applicable

TCDS E00051EN            PAGE 9 
 
NOTE 7 AIRCRAFT ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES INSTALLED ON THE 
ENGINE BUT ARE NOT PROVIDED AS PART OF ENGINE TYPE DESIGN 
 
Not applicable 
 
NOTE 8 SPECIAL ANTI-ICING OR DE-ICING REQUIREMENTS 
 
Not applicable 
 
NOTE 9 ENGINE MOUNT SYSTEM PROVISIONS 
 
See Installation and Maintenance Manuals 
 
NOTE 10 POWER BOOST, INJECTION OR AUGMENTATION SYSTEMS AND LIMITS AS APPLICABLE 
 
The 915 iSc C24 series, 916 iSc A series and 916 iSc C24 series engines are equipped with a turbocharger with 
intercooler. 
 
NOTE 11 SPECIAL INSTALLATION REQUIREMENTS 
 
 Engine weight is defined as the following configurations: 
912 F2 / F4/ S2 / S4:  With ignition unit and internal generator, carburetors, overload clutch, oil tank and  
   electric starter, but  without the muffler and radiator. 
912 F3 / S3:  As above and with propeller flange P.C.D. 75/80 mm / 4", drive and adapter for 
   hydraulic governor for constant speed propeller. 
Alternator (external): 3.0 kg (6.6 lbs). 
 
915 iSc2 C24  With base engine with gearbox and turbocharger, cooling air baffle,wiring harness, 
   sensors, intermediate flange with overboost valve, air hose and clamps, magneto  
   valve block with  holes, ECU, fuse box, 28V AC/DC converter, oil tank, intercooler, 
 exhaust system.  Without fuel pumps assy, radiator, oil cooler governor and 
 governor drive. 
 
915 iSc3 C24  As 915 iSc2 C24 but w ith governor drive. 
 
912 iSc2 Sport  With electric system: wiring harness ECU, fuse box and start relay. With oil tank. 
   Without engine suspension frame, exhaust system, fuel pumps assy., cooling baffle 
   radiator, oil cooler, governor and governor drive. 
 
912 iSc3 Sport  As 912 iSc2 Sport but w ith governor drive 
 
916 iSc2 A  With base engine with gearbox and turbocharger, cooling air baffle, wiring harness, 
   sensors, intermediate flange with overboost valve, air hose and clamps, magneto 
   valve block with hoses, ECU, fusebox, oil tank, intercooler, exhaust system Without 
   fuel pumps assy., radiator and oil cooler, governor and governor drive. 
 
916 iSc3 A  As 916 iSc2 A but with governor drive 
 
916 iSc2 C24  With base engine with gearbox and turbocharger, cooling air baffle, wiring harness, 
   sensors, intermediate flange with overboost valve, air hose and clamps, magneto 
   valve block with hoses, ECU, fusebox, 28V AC/DC converter, oil tank, intercooler, 
   exhaust system Without fuel pumps assy., radiator and oil cooler, governor and 
   governor drive. 
 
916 iSc3 C24  As 916 iSc2 C24 but with governor drive

TCDS E00051EN            PAGE 10 
 
 Generator and Alternator Operation:  The optional external alternator was certified with the engine under 14-
CFR, Part 33, using some of the standards specified in Aerospace Standard AS 8020.  Compliance to the AS 8020 
standard for parallel operation of the external alternator and internal generator has not been demonstrated. 
 
 Vacuum Pump:  The propeller shaft driven vacuum pump is optional for the 912 F2/S2/F4/S4 series engine 
models, and not applicable, nor available, for the 912 F3/S3 series engine model.  During 14-CFR, Part 33 
certification of the 912 series engine models, compliance for the vacuum pump has only been shown to the 
attachment requirements of 14-CFR, Part 33.25. 
 
 Governor:  During 14-CFR, Part 33 certification of the 912 series engine models, compliance for the hydraulic 
governor has been shown to the attachment requirements of 14-CFR, Part 33.25, and in lieu of 14-CFR, Part 35.42 
(as required by Part 33.19(b)), JAR-E (b)(1)(ii) was used for governor functional testing. 
 
 The 912 iSc Sport series, 915 iSc C24 series, 916 iSc A series and 916 iSc A series engines are not approved for 
Time Limited Dispatch. All engine systems and equipment must be functional prior to aircraft take-off.  Any 
detected engine system or equipment failure must be corrected before next flight.  For special instructions, see 
applicable Operation & Maintenance Manual. 
 
NOTE 12 MANUFACTURER’S SERVICE BULLETINS OR OTHER INSTRUCTIONS 
 
Each of the documents listed below must state that it is approved by the European Union Aviation Safety Agency 
or, for approvals made before September 28, 2003, by Austro Control GmbH.  Any such documents, including those 
approved under a delegated authority, are accepted by the FAA and are considered FAA approved. 
 
   ●   Service bulletins, 
   ●   Structural repair manuals, 
   ●   Vendor manuals, 
   ●  Aircraft flight manuals, 
   ●  Overhaul and maintenance manuals 
These approvals pertain to the type design only. 
 
 
NOTE 13 SPECIAL OPERATING PROCEDURES OR LIMITATIONS 
 
Not applicable 
 
NOTE 14 SPECIAL REPAIR OR OVERHAUL LIMITATIONS 
 
The Rotax 912, 915 and 916 series engines must be overhauled in accordance with the approved overhaul manuals. 
 
 
NOTE 15 APPLICABLE MANUALS  
Description 912 F2 / F3/ / F4  
/ S2 / S3 /S4 
915 iSc2 C24 
915 iSc3 C24 
912 iSc2 Sport 
912 iSc3 Sport 
916 iSc2 A 
916 iSc3 A 
916 iSc2 C24 
916 iSc3 C24 
Operators Manual OM-912 OM-915 iA/C24 OM-912i OM-916 i A/C24 
Installation Manual IM-912 IM-915 iA/C24 IM-912i IM-916 i A/C24 
Maintenance Manual-Line MML-912 MML-915 iA/C24 MML-912i MML-916 i A/C24 
Maintenance Manual-Heavy MMH-912 MMH-915 iA/C24 MMH-912i MMH-916 i A/C24 
Overhaul Manual OHM-912 OHM-915 iA/C24 OHM-912i OHM-916 i A/C24 
Overhaul Manual Appendix OHMA-912 OHMA-915 iA/C24 OHMA-912i OHMA-916iA/C24 
Illustrated Parts Catalog IPC-912 IPC-915 iSc C24 IPC-912i IPC-916 i A/C24

TCDS E00051EN            PAGE 11 
 
NOTE 16 IMPORT REQUIREMENTS STATEMENT FOR FOREIGN MANUFACTURED ENGINES 
 
See import requirements above. 
 
Refer to the applicable bilateral agreement to verify eligibility for import into the United States of both 
new and used aircraft based on the scope of the agreement, to   identify any required statements by the 
exporting authority on the export certificate of airworthiness (or equivalent document) , and for procedures 
for coordinating exceptions to conformity statements on these documents. Refer to FAA Order 8130.2 , 
Airworthiness Certification of Aircraft , for requirements for issuance of an airworthiness certificate for 
imported aircraft.  
 
 
NOTE 17 LIFE LIMITED PART INFORMATION  
 
Not applicable 
 
NOTE 18 MILITARY MODEL INFORMATION 
 
Not applicable 
 
NOTE 19 HORIZONTAL OR VERTICAL INSTALLATION (ROTORCRAFT) 
 
Not applicable 
 
NOTE 20 CENTER OF GRAVITY TABULATION (IF NOT SHOWN IN BODY OF TCDS) 
 
Reference the Installation Manual, latest revision 
 
NOTE 21 VIBRATION DAMPER PROVISION LIMITATIONS 
 
Not applicable 
 
---END---
```

## ADs (22, in force first)

- [AD 2026-16-11](https://openairdocs.org/ad/2026-16-11): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Aug 28, 2026
- [AD 2026-04-02](https://openairdocs.org/ad/2026-04-02): Turbine Engine Reduction Gear · BRP-Rotax 915 iSc2 C24 and 915 iSc3 C24. Effective Mar 19, 2026
- [AD 2025-15-03](https://openairdocs.org/ad/2025-15-03): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Aug 6, 2025
- [AD 2023-17-13](https://openairdocs.org/ad/2023-17-13): Reciprocating Engine Front Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 16 more. Effective Sep 20, 2023
- [AD 2019-10-04](https://openairdocs.org/ad/2019-10-04): Reciprocating Engine Cylinder Section · BRP-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Jul 10, 2019
- [AD 2016-23-04](https://openairdocs.org/ad/2016-23-04): Carburetor floats · BRP-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Dec 7, 2016
- [AD 2016-13-04](https://openairdocs.org/ad/2016-13-04): Engine coolant temperature limit · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Jul 27, 2016
- [AD 2013-15-19](https://openairdocs.org/ad/2013-15-19): Excessive oil consumption · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Aug 27, 2013
- [AD 2012-16-13](https://openairdocs.org/ad/2012-16-13): Pressure side fuel hose · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 3 more. Effective Sep 10, 2012
- [AD 2012-04-03](https://openairdocs.org/ad/2012-04-03): Oil pump attachment bolts · BRP--POWERTRAIN 912 S2, 912 S3 and 914 F2. Effective Mar 16, 2012
- [AD 2011-25-02](https://openairdocs.org/ad/2011-25-02): Crankshaft · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Dec 22, 2011
- [AD 2011-12-04](https://openairdocs.org/ad/2011-12-04): Washers · Bombardier-Rotax 912 F3, 912 S2, 912 S3 and 4 more. Effective Jun 27, 2011
- [AD 2010-20-23](https://openairdocs.org/ad/2010-20-23): Engine crankcase · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Nov 8, 2010
- [AD 2010-18-14](https://openairdocs.org/ad/2010-18-14): Fuel pressure · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 3 more. Effective Oct 13, 2010
- [AD 2005-01-14](https://openairdocs.org/ad/2005-01-14): Valve train on all engines · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Feb 15, 2005
- [AD 2002-19-09](https://openairdocs.org/ad/2002-19-09): Fuel pump assembly · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 3 more. Effective Oct 10, 2002
- [AD 2002-16-07](https://openairdocs.org/ad/2002-16-07): Valve Spring Retainers · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Sep 3, 2002
- [AD 98-15-16](https://openairdocs.org/ad/98-15-16): Fuel Pump · BRP--POWERTRAIN 912 F2, 912 F3 and 912 F4. Effective Aug 7, 1998
- [AD 2025-07-02](https://openairdocs.org/ad/2025-07-02) (historical): Reciprocating Engine Oil System · BRP-Rotax 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24 and 1 more. Effective Apr 21, 2025
- [AD 2013-07-12](https://openairdocs.org/ad/2013-07-12) (historical): Cylinder heads · BRP--POWERTRAIN 912 F2, 912 F3, 912 F4 and 6 more. Effective Apr 30, 2013
- [AD 2002-21-16](https://openairdocs.org/ad/2002-21-16) (historical): Valve train · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 6 more. Effective Oct 28, 2002
- [AD 2002-16-26](https://openairdocs.org/ad/2002-16-26) (historical): Engine crankcase · Bombardier-Rotax 912 F2, 912 F3, 912 F4 and 3 more. Effective Sep 16, 2002

## Registered aircraft by registry model (OpenAirDocs)

- [Rotax 912 IS](https://openairdocs.org/engine/rotax-912-is-series): 875 aircraft (registry code 55593)
- [Rotax 915 IS](https://openairdocs.org/engine/rotax-915-is-series): 393 aircraft (registry code 55620)
- [Rotax 912S](https://openairdocs.org/engine/rotax-912s-series): 335 aircraft (registry code 55570)
- [Rotax 912](https://openairdocs.org/engine/rotax-912-series): 299 aircraft (registry codes 55569, 55606)
- [Rotax 916 IS](https://openairdocs.org/engine/rotax-916-is-series): 118 aircraft (registry code 55622)
- [Rotax 912S3](https://openairdocs.org/engine/rotax-912s3): 95 aircraft (registry code 55594)
- [Rotax 912ISC](https://openairdocs.org/engine/rotax-912isc-series): 66 aircraft (registry code 55591)
- [Rotax 915 series](https://openairdocs.org/engine/rotax-915-series): 41 aircraft (registry code 55619)
- [Rotax 912F3](https://openairdocs.org/engine/rotax-912f3): 6 aircraft (registry code 55601)

## STCs approved under this data sheet (2)

- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc.
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc.

---
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