# Alliedsign ALF502R-4

- Type: Engine model (FAA registry)
- Registry code: 02648
- Manufacturer (registry): ALLIEDSIGN
- Model: ALF502R-4
- Engine type: Turbo-fan
- Power: 6,970 lb thrust
- Data sheet: [TCDS E6NE](https://openairdocs.org/tcds/E6NE) (OpenAirDocs)
- Holder: CFS Aeroproducts Inc.
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/alliedsign-alf502r-4

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 2020-18-09](https://openairdocs.org/ad/2020-18-09): Engine (Turbine/Turboprop); Engine Fuel and Control; Engine Emergency Shutdown System · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Oct 21, 2020
- [AD 2009-26-06](https://openairdocs.org/ad/2009-26-06): Fuel manifold assemblie · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Feb 11, 2010
- [AD 2006-09-13](https://openairdocs.org/ad/2006-09-13): Turbofan engines · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more. Effective Jun 13, 2006
- [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002
- [AD 2002-22-06](https://openairdocs.org/ad/2002-22-06): Combustion chamber liner assembly · Honeywell International ALF502R-3, ALF502R-3A, ALF502R-4 and 4 more. Effective Nov 18, 2002
- [AD 2002-12-08](https://openairdocs.org/ad/2002-12-08): Gas Producer Turbine (GPT) Components · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Jul 17, 2002
- [AD 2000-11-15](https://openairdocs.org/ad/2000-11-15): Critical Life-Limited Parts · Honeywell International ALF502R-3, ALF502R-3A, ALF502R-4 and 4 more. Effective Jul 10, 2000
- [AD 2000-05-14](https://openairdocs.org/ad/2000-05-14): Bearing Inlet Assembly · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Apr 27, 2000
- [AD 95-03-15](https://openairdocs.org/ad/95-03-15): Compressor Rotor Disk · Honeywell International ALF502R-3, ALF502R-3A, ALF502R-4 and 2 more. Effective May 8, 1995
- [AD 93-14-13](https://openairdocs.org/ad/93-14-13): Third Stage Turbine Disk · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more. Effective Oct 4, 1993
- [AD 93-10-07](https://openairdocs.org/ad/93-10-07): Third Stage Compressor Disks · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more. Effective Aug 10, 1993
- [AD 92-08-51](https://openairdocs.org/ad/92-08-51): Engine Fuel Control · Honeywell International ALF502R-3, ALF502R-3A, ALF502R-4 and 2 more. Effective Mar 18, 1993
- [AD 90-24-01](https://openairdocs.org/ad/90-24-01): High Compressor Disks · Honeywell International ALF502R-3, ALF502R-3A, ALF502R-4 and 2 more. Effective Nov 13, 1990
- [AD 87-15-03](https://openairdocs.org/ad/87-15-03): Gas Producer Turbine Spacer · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more. Effective Jul 24, 1987
- [AD 82-25-10](https://openairdocs.org/ad/82-25-10): First Stage Compressor Stator Vane Airfoils and/or Fourth Stage Turbine Blade Airfoils · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 4 more. Effective Dec 16, 1982
- [AD T83-03-51](https://openairdocs.org/ad/T83-03-51): Fourth Stage Turbine Rotors Assembly · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more

Historical (superseded or no longer in force):

- [AD 97-05-11 R1](https://openairdocs.org/ad/97-05-11-R1) (historical): ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Aug 18, 1997
- [AD 97-11-05](https://openairdocs.org/ad/97-11-05) (historical): Fuel Manifold Assemblies · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 9 more. Effective Jul 28, 1997
- [AD 95-04-11](https://openairdocs.org/ad/95-04-11) (historical): Third Stage Turbine Disks · Honeywell International ALF502L, ALF502L-2, ALF502L-2A and 7 more. Effective Apr 3, 1995

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## Service difficulty reports (1)

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

- [SDR AUS20020484](https://openairdocs.org/sdr/AUS20020484), May 24, 2002: ENGINE. VIBRATES. (AUS) NR 2 ENGINE FAILED. SEVERE VIBRATION AND FLAMES FROM EXHAUST AREA. ONE FIRE BOTTLE DISCHARGED. INVESTIGATION FOUND THE OIL TANK WAS FULL WITH NO SIGNS OF 

## PMA parts (OpenAirDocs) (80, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [2C-141-305-02](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111586114820240815113948.0001): Gasket, Mounting Pad Probe. Power Turbine Components  LLC · PMA PQ2078NE · Replaces 2C-141-305-02 · Aug 1, 2024
- [152437-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142983584620240716160350.0001): Manifold. Collins Engine Nozzles Inc. · PMA PQ3405CE · Replaces 2-163-620-39 · Jun 20, 2024
- [152437-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134815188520240716160351.0001): Manifold. Collins Engine Nozzles Inc. · PMA PQ3405CE · Replaces 2-163-620-41 · Jun 20, 2024
- [152438-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107057953620240716160351.0001): Manifold. Collins Engine Nozzles Inc. · PMA PQ3405CE · Replaces 2-163-620-42 · Jun 20, 2024
- [TECS26570-01](https://drs.faa.gov/browse/excelExternalWindow/9B4AD467751E542E8625845F0062DAC7.0001): Drains Tank Ejector Pump. Triumph Engine Control Systems, LLC · PMA PQ0108NE · Replaces 2-303-087-05 · Sep 4, 2018
- [2-131-159-01KT](https://drs.faa.gov/browse/excelExternalWindow/E04036448C6AB04C86257A6B0062143B.0001): Washer-Flat Sealing. Turbine Kinetics Inc, Subsidiary of HEICO Corp · PMA PQ0816NE · Replaces 2-131-159-01 · Aug 26, 2012
- [ACB241F107](https://drs.faa.gov/browse/excelExternalWindow/91AC2552C7D0D29D86257A610055E824.0001): Lube Filter Element. Pall Aeropower Corporation · PMA PQ1063CE · Replaces 2-303-431-01 · May 15, 2012
- [108200-01A5](https://drs.faa.gov/browse/excelExternalWindow/A4B96101AE0F9EA885257042005A1034.0001): MFP-45 Main Fuel Pump. Goodrich Pump & Engine Control Systems Inc · Replaces 774959-4 · Jan 31, 2005
- [108200-01A4](https://drs.faa.gov/browse/excelExternalWindow/9FF1F3432DB38AB3862574F8006ABF65.0001): Main Fuel Pump. Goodrich Pump & Engine Control Systems Inc · PMA PQ0108NE · Replaces 774959-3 · Sep 10, 2002
- [108200-01A3](https://drs.faa.gov/browse/excelExternalWindow/8D303651058ACE0A862574F8006AB52D.0001): Main Fuel Pump. Goodrich Pump & Engine Control Systems Inc · PMA PQ0108NE · Replaces 774959-2 · Sep 10, 2002
- [108200-01A3](https://drs.faa.gov/browse/excelExternalWindow/74AE4D4671AFAD6C862574F8006AB391.0001): Fuel Pump. Goodrich Pump & Engine Control Systems Inc · PMA PQ0108NE · Replaces 774959-2 · Sep 10, 2002
- [108200-01A4](https://drs.faa.gov/browse/excelExternalWindow/5FCED1884C3C9BD28525703E0065E1D7.0001): MFP-45 Main Fuel Pump. Chandler Evans Inc, Control Sys Div · Replaces 774959-3 · Nov 15, 2000
- [27331423-01](https://drs.faa.gov/browse/excelExternalWindow/7C83D0A6B53D42F785257042005E3103.0001): Controller Overspeed. Hamilton Sundstrand Power System · Replaces Replacement Parts · Jul 25, 1999
- [AC-B241F-107](https://drs.faa.gov/browse/excelExternalWindow/14F3C3B50093C7CA8525703B005474AE.0001): Lube Filter element. Aircraft Porous Media Inc, Div of Pall Aeropower Corp · Replaces Textron Lycoming 2-303-431-01 · Aug 24, 1995
- [45904](https://drs.faa.gov/browse/excelExternalWindow/AAE17D4D2F6FF80C8525703E0068F3EE.0001): Valve, Pressuring. Delavan Inc. · PMA PQ3405CE · Replaces Lycoming 2-303-795-01 · Jan 26, 1995
- [59117](https://drs.faa.gov/browse/excelExternalWindow/646F8D210D6062B48525703E0068F495.0001): Nozzle Assembly. Delavan Inc. · PMA PQ3405CE · Replaces Lycoming 2-310-098-01 · Jan 26, 1995
- [48207](https://drs.faa.gov/browse/excelExternalWindow/52338C2D05CECCB78525703E0068F3F9.0001): Nozzle Assembly. Delavan Inc. · PMA PQ3405CE · Replaces Lycoming 2-310-011-01 · Jan 26, 1995
- [KTW2-121-042-19](https://drs.faa.gov/browse/excelExternalWindow/CD92EF35B7AF426C852570460059932A.0001): Vane, Second Turbine Nozzle. KTW Incorporated · Replaces Textron Lycoming 2-121-042-19 · Jan 17, 1995
- [KTW2-121-042-15](https://drs.faa.gov/browse/excelExternalWindow/B207A61380168F6A8525704600599329.0001): Vane, Second Turbine Nozzle. KTW Incorporated · Replaces Textron Lycoming 2-121-042-15 · Jan 17, 1995
- [31-75103-4015-5NAD Rev. B Dated 8/24/92](https://drs.faa.gov/browse/excelExternalWindow/DA8E02AEA5DFE459862574E5006BE962.0001): Lube and Scavenge Pump Assembly. Parker Hannifin Corp, Nichols Airborne Division · PMA PQ0953NE · Replaces Textron Lycoming P/N 2-303-734-01 Rev… · Jun 26, 1994
- [31-75103-4016-5NAD Rev. A](https://drs.faa.gov/browse/excelExternalWindow/170AB35924642589862574E5006BE999.0001): Lube and Scavenge Pump Assembly. Parker Hannifin Corp, Nichols Airborne Division · PMA PQ0953NE · Replaces Textron Lycoming P/N 2-193-790-01 Rev… · Jun 26, 1994
- [1D2316](https://drs.faa.gov/browse/excelExternalWindow/7576808FC1917CE48525704D0059666D.0001): Tedeco Debris Monitor. Vickers Inc, Systems Monitoring Div · Replaces Textron (Avco) Lycoming Housing… · Mar 31, 1993
- [CM-2-141-061-01](https://drs.faa.gov/browse/excelExternalWindow/FA865A29B5A8CDF78525704200569779.0001): Seal Element. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-061-01 · Jul 22, 1992
- [CM-2-121-089](https://drs.faa.gov/browse/excelExternalWindow/F5FA3CF42BAED0C18525704200569775.0001): Shim. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-121-089 · Jul 22, 1992
- [CM-2-161-109](https://drs.faa.gov/browse/excelExternalWindow/EFA96620AE314BBE8525704200569787.0001): Bracket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-109 · Jul 22, 1992
- [CM-2-141-271-02](https://drs.faa.gov/browse/excelExternalWindow/EC365CB729E3193C852570420056977E.0001): Tube. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-271-02 · Jul 22, 1992
- [CM-2-141-088-04](https://drs.faa.gov/browse/excelExternalWindow/E714C0C4313CA922852570420056977C.0001): Ring, Bearing. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-088-04 · Jul 22, 1992
- [CM-2-160-175-02](https://drs.faa.gov/browse/excelExternalWindow/E3ECEA0641A45DCB8525704200569783.0001): Pin. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-175-02 · Jul 22, 1992
- [CM-2-161-183-01](https://drs.faa.gov/browse/excelExternalWindow/E264730BF930971A852570420056978B.0001): Pin, Band. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-183-01 · Jul 22, 1992
- [CM-2-020-026-01](https://drs.faa.gov/browse/excelExternalWindow/DC7935718E13DBD58525704200569772.0001): Screw. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-020-026-01 · Jul 22, 1992
- [CM-2-141-066-01](https://drs.faa.gov/browse/excelExternalWindow/D58329D216557187852570420056977A.0001): Seal Element. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-066-01 · Jul 22, 1992
- [CM-2-160-517-01](https://drs.faa.gov/browse/excelExternalWindow/D4E4180A30815E8F8525704200569786.0001): Bracket, Angle. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-517-01 · Jul 22, 1992
- [CM-2-160-275-01](https://drs.faa.gov/browse/excelExternalWindow/C9F5CB28436CCB778525704200569784.0001): Plug. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-275-01 · Jul 22, 1992
- [CM-2-101-096-17](https://drs.faa.gov/browse/excelExternalWindow/C7AA7D7F6C8897F08525704200569773.0001): Bolt. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-101-096-17 · Jul 22, 1992
- [CM-2-161-147-01](https://drs.faa.gov/browse/excelExternalWindow/C79386A556655E3F8525704200569788.0001): Bracket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-147-01 · Jul 22, 1992
- [CM-2-131-103-01](https://drs.faa.gov/browse/excelExternalWindow/AF64C4F3451A07CB8525704200569777.0001): Bracket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-131-103-01 · Jul 22, 1992
- [CM-2-131-129-01](https://drs.faa.gov/browse/excelExternalWindow/A6D5F840311D49128525704200569778.0001): Bushing. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-131-129-01 · Jul 22, 1992
- [CM-2-160-171-01](https://drs.faa.gov/browse/excelExternalWindow/9D5EB13B342C38B18525704200569781.0001): Nut. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-171-01 · Jul 22, 1992
- [CM-2-161-161-01](https://drs.faa.gov/browse/excelExternalWindow/863B307EC036A53E8525704200569789.0001): Bracket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-161-01 · Jul 22, 1992
- [CM-2-160-172-03](https://drs.faa.gov/browse/excelExternalWindow/7F321469A5B074CE8525704200569782.0001): Pin. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-172-03 · Jul 22, 1992
- [CM-2-160-364-01](https://drs.faa.gov/browse/excelExternalWindow/684D141FAD76D40E8525704200569785.0001): Gasket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-160-364-01 · Jul 22, 1992
- [CM-2-121-077-01](https://drs.faa.gov/browse/excelExternalWindow/50C0B89073A9C4138525704200569774.0001): Plate Locking. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-121-077-01 · Jul 22, 1992
- [CM-2-141-078-02](https://drs.faa.gov/browse/excelExternalWindow/50ADC1A807600184852570420056977B.0001): Seal Element. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-078-02 · Jul 22, 1992
- [CM-2-141-305-02](https://drs.faa.gov/browse/excelExternalWindow/4FD11827881F34EC852570420056977F.0001): Gasket. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-305-02 · Jul 22, 1992
- [CM-2-141-347-02](https://drs.faa.gov/browse/excelExternalWindow/4BF788999AA896A48525704200569780.0001): Pin. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-347-02 · Jul 22, 1992
- [CM-2-141-124-05](https://drs.faa.gov/browse/excelExternalWindow/2BD18BDC72B8A912852570420056977D.0001): Retainer, Oil Seal. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-141-124-05 · Jul 22, 1992
- [CM-2-131-102-01](https://drs.faa.gov/browse/excelExternalWindow/08764D6F983D98E88525704200569776.0001): Bolt. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-131-102-01 · Jul 22, 1992
- [CM-2-161-179-01](https://drs.faa.gov/browse/excelExternalWindow/030589BE4D4DC0C5852570420056978A.0001): Yoke. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-179-01 · Jul 22, 1992
- [CM-2-161-184-01](https://drs.faa.gov/browse/excelExternalWindow/029556B07B3D8E32852570420056978C.0001): Pin, Band. Dynatech Aerospace Inc · Replaces Textron Lycoming 2-161-184-01 · Jul 22, 1992
- [108200-01](https://drs.faa.gov/browse/excelExternalWindow/3965903CCF1234E48525703E0065E4B6.0001): Main Fuel Pump MFP-45. Chandler Evans Inc, Control Sys Div · Replaces 774959-2 · Apr 19, 1992

All of them: https://openairdocs.org/engine/alliedsign-alf502r-4/pma.md

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