# Allison 501-D22

- Type: Engine model (FAA registry)
- Registry code: 03005
- Manufacturer (registry): ALLISON
- Model: 501-D22
- Engine type: Turbo-prop
- Power: 4,050 hp
- Data sheet: [TCDS E-282](https://openairdocs.org/tcds/E-282) (OpenAirDocs)
- Holder: Rolls-Royce Corporation
- Installed in: 2 registered aircraft
- Page: https://openairdocs.org/engine/allison-501-d22

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2006-25-12](https://openairdocs.org/ad/2006-25-12): Removal from service of certain turbine rotor components · Rolls-Royce 501-D13, 501-D13A, 501-D13D and 6 more. Effective Jan 23, 2007
- [AD 69-21-03](https://openairdocs.org/ad/69-21-03): First Stage Compressor Wheels · Rolls-Royce 501-D13, 501-D13A, 501-D13D and 6 more. Effective Oct 21, 1969

Historical (superseded or no longer in force):

- [AD 2003-07-02](https://openairdocs.org/ad/2003-07-02) (historical): Turbine rotor components · 501-D13, 501-D13A, 501-D13D and 6 more. Effective May 7, 2003

## Registered aircraft (2)

- [N381FL](https://openairdocs.org/aircraft/N381FL): [Ifl Group Inc](https://openairdocs.org/faa-owner/IFL%20GROUP%20INC), [Waterford, MI](https://openairdocs.org/faa-place/MI/Waterford), built 1953, S/N 276
- [N391FL](https://openairdocs.org/aircraft/N391FL): [Ifl Group Inc](https://openairdocs.org/faa-owner/IFL%20GROUP%20INC), [Waterford, MI](https://openairdocs.org/faa-place/MI/Waterford), built 1955, S/N 278

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20001121038059I](https://openairdocs.org/incident/20001121038059I), Nov 21, 2000: Cvac 340CVAC (N391FL), Rochester, NY. (-23) On Tuesday, November 21, 2000, a convair 340 (CV5800), N391FL, FLIGHT1153, operated by control air cargo airlines, during approach to Rochester…
- [Incident 19900803044839I](https://openairdocs.org/incident/19900803044839I), Aug 3, 1990: Lkheed 382E (N901SJ), Middletown, PA. NR3 engine fire warning. Shut down but light remained. Emergency landing. Fire control box was faulty.

## Service difficulty reports (43)

As reported by operators and repair stations, by the model named in the report.

- [SDR VGCA20250513001](https://openairdocs.org/sdr/VGCA20250513001), May 13, 2025: TACH GENERATOR. STRIPPED. RIGHT ENGINE RPM SPOOLED DOWN IN FLIGHT. ENGINE WAS SHUTDOWN. SUBSEQUENT INSPECTION FOUND THAT TACH GENERATOR DRIVE SHAFT WAS SPRIPPED
- [SDR VGCA20241209001](https://openairdocs.org/sdr/VGCA20241209001), Dec 9, 2024: CHECK VALVE. BLOCKED. ON LANDING SMOKE FILLED CABIN AND COCKPIT. DURING SUBSEQUENT INSPECTION FOUND THAT ENGINE DRIVEN COMPRESSOR (CABIN) HAD OVERHEATED AND DUMPED OIL INTO CABIN AIR
- [SDR VGCA20240207001](https://openairdocs.org/sdr/VGCA20240207001), Feb 7, 2024: REDUCTION GB. PRESSURE LOSS. REDUCTION GEARBOX HAD INTERNAL FAILURE THAT CAUSED ENTIRE QUANITY OF ENGINE OIL TO FILL REDUCTION GEARBOX.
- [SDR VGCA20220330001](https://openairdocs.org/sdr/VGCA20220330001), Mar 30, 2022: NONE. BYPASSING. ENGINE COMPRESSOR SURGED AND THEN FLAMED OUT AND AUTOFEATHERED AT THE END OF TAKE OFF PHASE.
- [SDR VGCA20211023001](https://openairdocs.org/sdr/VGCA20211023001), Oct 23, 2021: NOT REPORTED. NOT REPORTED. ENGINE FLAMEOUT / LOSS OF POWER DURING CRUISE. ACCESSOPRY DRIVE HOUSING GEARBOX IS NOT ROATATING
- [SDR VGCA20210510001](https://openairdocs.org/sdr/VGCA20210510001), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, UPPER RAIL CORRODED AT WING STATION 23. PERFORMED BLEND OUT IN THIS LOCATION PER ENGINEERING REPAIR.
- [SDR VGCA20210510002](https://openairdocs.org/sdr/VGCA20210510002), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, UPPER RAIL CORRODED BETWEEN WING STATION 21 AND 22. SPLICED IN NEW SPAR RAIL SEGMENT PER ENGINEERING REPAIR.
- [SDR VGCA20210510003](https://openairdocs.org/sdr/VGCA20210510003), Apr 28, 2021: SPAR. CORRODED. RIGHT WING, REAR SPAR, LOWER RAIL CORRODED BETWEEN WING STATIONS 21 AND 23. PERFORMED BLEND OUT PER ENGINEERING REPAIR
- [SDR VGCA20210311001](https://openairdocs.org/sdr/VGCA20210311001), Mar 11, 2021: FIRE LOOP. SHORTED. RIGHT ENGINE ZONE 1 FIRE WARNING IN FLIGHT, SHUT DOWN ENGINE, RETURNED TO AIRPORT. FOUND 2 SECTIONS OF FIRE DETECTOR LOOP BAD.
- [SDR VGCA202006296001](https://openairdocs.org/sdr/VGCA202006296001), Jun 26, 2020: OIL SYSTEM. LEAKING. LOSS OF ALL OIL ON NR 1 ENGINE. SHUT DOWN ENGINE AND DECLARED AN EMERGENCY.
- [SDR CA180103009](https://openairdocs.org/sdr/CA180103009), Dec 29, 2017: FIRE DETECTOR. ABNORMAL. (CAN) IN FLIGHT, THE AIRCRAFT`S NR 1 ENGINE ZONE 2 FIRE WARNING ACTIVATED. THE FLIGHT CREW ACCOMPLISHED THE ENGINE FIRE WARNING SHUTDOWN PROCEDURE AND CHECKLIST
- [SDR VGCA20160311001](https://openairdocs.org/sdr/VGCA20160311001), Mar 11, 2016: COMPRESSOR. STALLED. NUMBER 1 COMPRESSOR STALLED. PRECAUTIONARY SHUTDOWN OF THE NR 1 ENG & RETURNED.
- [SDR LR7A2015091700608](https://openairdocs.org/sdr/LR7A2015091700608), Sep 17, 2015: HOUSING. FAILED. DURING CRUISE, NR 4 ENGINE FLAMED OUT. SHUTDOWN IAW QRH PROCEDURES. R & R VALVE HOUSING ASSY IAW HN61135.
- [SDR CA150506018](https://openairdocs.org/sdr/CA150506018), May 5, 2015: DRIVE GEAR. MISINSTALLED. (CAN) LEFT MAIN PRESS & SCAVENGE OIL PUMP WAS INSTALLED DURING WINTER MX. AT SPRING RUN UP IT WAS NOTED THAT THE LT ENG MAIN OIL PRESS WAS NOT WITHIN SPECIFIED 
- [SDR CA130828014](https://openairdocs.org/sdr/CA130828014), Aug 19, 2013: TIRE. OUT OF BALANCE. (CAN) NOSE WHEEL TIRES ON 2 SEPARATE ACFT, REPLACED DUE TO NOSE WHEEL SHIMMY ON EACH ACFT DURING TAKEOFF. 1 TIRE/RIM WAS REPLACED AUGUST 16,2013 AND THE OTHER A
- [SDR CA130718004](https://openairdocs.org/sdr/CA130718004), Jul 17, 2013: STRUT. BROKEN. (CAN) AFTER TAKEOFF WITH A POSITIVE RATE OF CLIMB THE GEAR HANDLE WAS SELECTED UP. A LOUD BANG WAS HEARD AND THE "GEAR UNLOCKED" LIGHT REMAINED ILLUMINATED. THE
- [SDR VGCA20130401001](https://openairdocs.org/sdr/VGCA20130401001), Apr 1, 2013: PROPELLER. MALFUNCTIONED. NR 2 PROPELLER AUTOFEATHER AFTER TAKEOFF.
- [SDR CA130128022](https://openairdocs.org/sdr/CA130128022), Jan 28, 2013: ROD END. WORN. (CAN) IN THE SUMMER OF 2011,PILOTS REPORTED THAT AT HIGH POWER SETTINGS IN CRUISE A HIGH FREQUENCY VIBRATION WAS FELT IN THE OTBD RUDDER PEDALS AND THE SEAT FRA
- [SDR VGCA201208240001](https://openairdocs.org/sdr/VGCA201208240001), Aug 24, 2012: BEAM. CRACKED. LEFT NOSE LANDING GEAR BEAM UPPER CHORD CRACKED.
- [SDR CA120806002](https://openairdocs.org/sdr/CA120806002), Jul 28, 2012: MOTOR. FAILED. (CAN) DURING OPERATIONS IN A VERY HOT, 35C+, ENVIRONMENT, THE FAN UNIT OF THE ZEE SYS INC. AIR CONDITIONING SYS WOULD OVERTEMP AND BURN OUT, CREATING A BURNING 
- [SDR CA120610001](https://openairdocs.org/sdr/CA120610001), Jun 4, 2012: SOLENOID. FAILED. (CAN) ON APPROACH, CREW EXPERIENCED A HAZE IN THE COCKPIT AND NOTICED THE, CABIN COMPRESSOR OIL LOW, LIGHT ILLUMINATED. CREW DISCONNECTED THE EDC AND LANDED WIT
- [SDR CA120823012](https://openairdocs.org/sdr/CA120823012), Apr 2, 2012: ANGLE. CRACKED. (CAN) DURING ANNUAL 375 HR INSPECTION, A CRACK WAS DISCOVERED VISUALLY IN THE NLG WHEEL WELL. MORE SPECIFICALLY, THE CRACK WAS LOCATED IN THE LT SIDE OF THE NLG
- [SDR CA120127013](https://openairdocs.org/sdr/CA120127013), Jan 25, 2012: FITTING. CRACKED. (CAN) DURING A 375 HR ANNUAL INSPECTION ON THE EXTERIOR OF THE EMPENNAGE, ELEVATOR AND HINGE ATTACHING PINS, BEARINGS AND BUSHINGS, THE SECOND FROM THE OTBD LT 
- [SDR CA111025011](https://openairdocs.org/sdr/CA111025011), Oct 24, 2011: ATTACH BRACKET. CRACKED. (CAN) DURING ANNUAL INSPECTION, FWD ECP BOX ATTACHMENT BRACKET, FOUND CRACKED IN UPPER AFT CORNER OF STRUCTURE ATTACH POINT. AFT ECP BOX PN 35E05-6D TOP ATTACH 
- [SDR CA110701001](https://openairdocs.org/sdr/CA110701001), Jun 16, 2011: RELAY. WRONG PART. AFTER STARTING THE NR2 ENGINE, ELECTRICAL SMOKE FUMES DETECTED IN THE COCKPIT. SMOKE CONTINUED TO BUILD. ELECTRICAL FIRE SUSPECTED. THE CREW SHUTDOWN ACFT POWER
- [SDR CA110413016](https://openairdocs.org/sdr/CA110413016), Apr 9, 2011: LINE. LEAKING. (CAN) ACFT DEPARTED AT ABOUT 1530Z. IN FLIGHT, THE CREW HAD LOST HYD QTY, DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. ACFT WAS TOWED TO RAMP AND MAINTENANC
- [SDR CA101018014](https://openairdocs.org/sdr/CA101018014), Oct 15, 2010: HINGE FITTING. DAMAGED. DURING THE ANNUAL 375 HR INSP, ELEVATOR/EMPENNAGE INSP PANELS WERE REMOVED. RT ELEVATOR OTBD STABILIZER TO ELEVATOR HINGE FITTING WAS FOUND GROOVED ON TOP RADIU
- [SDR CA100521005](https://openairdocs.org/sdr/CA100521005), May 17, 2010: CONTROL BOX. FAILED. NR 1 ENGINE AC GENERATOR CAME OFF LINE DURING CRUISE, GENERATOR RESET AND STILL WILL NOT COME ON LINE, CONTROL BOXES SWAPPED AND FAULT TRANSFERED TO OTHER SIDE 
- [SDR CA090622015](https://openairdocs.org/sdr/CA090622015), Jun 20, 2009: GENERATOR. INOPERATIVE. (CAN) ON APPROACH, PILOT NOTICED NR 1 AC GENERATOR INOP LIGHT ON AND VOLTMETER INDICATED 0 VOLTS. CIRCUIT METERED BACK THROUGH VOLTAGE REGULATOR AND FOUND OPEN 
- [SDR CA090617008](https://openairdocs.org/sdr/CA090617008), Jun 14, 2009: SELECTOR VALVE. INOPERATIVE. (CAN) PILOT UNABLE TO RETRACT FLAPS THROUGH NORMAL ELECTRIC FLAP CONTROL SWITCH. FLAPS RETRACTED USING MANUAL EMERGENCY FLAP SELECTOR. TROUBLESHOOTING DETERMINE
- [SDR CA070824007](https://openairdocs.org/sdr/CA070824007), Jul 25, 2007: DOOR. INOPERATIVE. (CAN) AIRCRAFT WAS DISPATCHED FOR FIRE ACTION. AFTER DEPARTURE, THE RT OIL TEMPERATURE GAUGE WAS OBSERVED TO BE AT THE BOTTOM OF THE RED ARC, APPROXIMATELY 100 
- [SDR CA070727009](https://openairdocs.org/sdr/CA070727009), Jul 23, 2007: LEVER. DISTORTED. (CAN) UPON SELECTION OF (GEAR DOWN), THE LOCKING ARM OF THE LANDING GEAR SELECTOR HANDLE STUCK IN THE EXTENDED POSITION, PREVENTING ASSOCIATED FUNCTION OF DEPRE
- [SDR CA070308004](https://openairdocs.org/sdr/CA070308004), Mar 6, 2007: CONTROL SWITCH. SHORTED. (CAN) WHILE CARRYING OUT FLIGHT TRAINING THE LT GENERATOR WAS TURNED OFF. WHEN SELECTED BACK ON, IT WAS NOTED THAT SMOKE WAS COMING FROM THE VOLTAGE REGULATOR. 
- [SDR CA060617001](https://openairdocs.org/sdr/CA060617001), Jun 9, 2006: STEERING SYS. MALFUNCTIONED. AFTER T/O, DURING L/G RETRACTION, NOSE WHEELS ENTERED W/W IN A RT TURN ATTITUDE, EVIDENT FROM WEAR MARKS ON TIRES AND RUBBER ON INTERIOR WALLS OF W/W. WHEN A/C 
- [SDR CA060426003](https://openairdocs.org/sdr/CA060426003), Apr 24, 2006: ENGINE. FAILED. (CAN) DURING CRUISE, THE CREW NOTICED THE TIT SPIKED TO 1100 DEGRESS F. THE HORSEPOWER DECREASED AND THE ZONE 1 FIRE BELL SOUNDED. THE E HANDLE AWAS PULLED AND 
- [SDR 2005FA0000344](https://openairdocs.org/sdr/2005FA0000344), Feb 22, 2005: WINDOW. BLEW OUT. DURING CRUISE FLIGHT AT FL230, THE FO SIDE WINDOW BLEW OUT; AT WHICH TIME, AN EMERGENCY DESCENT WAS EXECUTED TO AN UNEVENT LANDING. (K)
- [SDR CA050329014](https://openairdocs.org/sdr/CA050329014), Feb 22, 2005: WINDOW. FAILED. (CAN) THE OPERATOR HAS FILED AN INCIDENT REPORT WITH THE FAA. WINDOWPANE FAILURE AT CRUISE ALTITUDE OF 21,000 FT, WHICH CAUSED FOD DAMAGE TO THE RT ENGINE. THE 
- [SDR CA040702005](https://openairdocs.org/sdr/CA040702005), Jun 22, 2004: SWITCH. FAULTY. (CAN) DURING CRUISE THE LT STARTER OVERSPEED LIGHT ILLUMINATED. THE ENGINE WAS SHUT DOWN AND THE PROPELLER WAS FEATHERED AS A PRECAUTION. THE AIRCRAFT RETURNED 
- [SDR CA030115007](https://openairdocs.org/sdr/CA030115007), Dec 23, 2002: FITTING. CRACKED. TWO HOSE ASSEMBLIES (390A20D4.8 AND 390A20D12.5) FROM A FUEL SUPPLY "Y" MANIFOLD WAS REMOVED AND ROUTED TO OUR INTERNAL OVERHAUL SHOP FOR REPLACEMENT OF THE HOS
- [SDR CA010727017](https://openairdocs.org/sdr/CA010727017), Jul 20, 2001: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL170 AFTER DEPARTURE NOTICED NR 2 GEAR BOX OIL PRESSURE FLICKERING. OIL PRESSURE WAS STILL IN THE GREEN RANGE AND THE POWER SECTION 
- [SDR 20010220CW001](https://openairdocs.org/sdr/20010220CW001), Jan 7, 2001: PROPELLER. BLOWN. AIRCRAFT WAS COLD SOAKED, OUTSIDE TEMPERATURE BEFORE DEPARTURE WAS 15 DEGREES. SUBMITTER FEELS THIS WAS A CONTRIBUTING FACTOR TO THIS SEAL BEING DEFECTIVE. COMP
- [SDR CA981125001](https://openairdocs.org/sdr/CA981125001), Apr 9, 1998: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL 170, NR 2 GEARBOX OIL PRESSURE LIGHT FLICKERING. OIL PRESSURE WAS STILL IN THE GREEN RANGE AND THE POWER SECTION OIL PRESSURE LIGH
- [SDR CA990310067](https://openairdocs.org/sdr/CA990310067), Apr 9, 1998: GEARBOX. LEAKING. (CAN) DURING CLIMB THROUGH FL 170, NR 2 ENGINE GEARBOX LIGHT FLICKERED. OIL PRESSURE WAS STILL IN THE GREEN AND THE POWER SECTION OIL PRESSURE WAS NORMAL. OIL Q

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