# Lycoming VO-435-A1F

- Type: Engine model (FAA registry)
- Registry code: 42200
- Manufacturer (registry): LYCOMING
- Model: VO-435-A1F
- Engine type: Reciprocating
- Power: 250 hp
- Data sheet: [TCDS E-279](https://openairdocs.org/tcds/E-279) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 15 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-vo-435-a1f

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 2026-04-11](https://openairdocs.org/ad/2026-04-11): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 605 more. Effective Apr 8, 2026
- [AD 2012-03-07](https://openairdocs.org/ad/2012-03-07): Carburetor · Lycoming Engines GO-435, GO-435-C2 (O-435-17), GO-435-C2A and 389 more. Effective Mar 27, 2012
- [AD 2004-10-14](https://openairdocs.org/ad/2004-10-14): Crankshaft gear · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 642 more. Effective Jun 25, 2004
- [AD 90-04-06 R1](https://openairdocs.org/ad/90-04-06-R1): Propeller Governor External Oil Line · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 427 more. Effective May 28, 1991
- [AD 80-04-04 R1](https://openairdocs.org/ad/80-04-04-R1): Crankshaft Flange Bolts · Lycoming Engines IVO-540-A1A, TIVO-540-A2A, TVO-435-A1A and 38 more. Effective Aug 18, 1980
- [AD 69-24-03](https://openairdocs.org/ad/69-24-03): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 321 more. Effective Nov 29, 1969
- [AD 66-06-03](https://openairdocs.org/ad/66-06-03): Connecting Rod Assemblies · Lycoming Engines GO-435-C2 (O-435-17), GO-435-C2A, GO-435-C2A2 and 317 more. Effective Jan 16, 1969
- [AD 68-08-08](https://openairdocs.org/ad/68-08-08): Hydraulic Valve · Lycoming Engines IGSO-480-A1A6, IGSO-480-A1B6, IGSO-480-A1C6 and 44 more. Effective May 19, 1968

Historical (superseded or no longer in force):

- [AD 2024-21-02](https://openairdocs.org/ad/2024-21-02) (historical): Engine (Reciprocating) · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 548 more. Effective Dec 5, 2024

## Information bulletins (advisory) (2)

- [SAIB NE-19-08](https://openairdocs.org/saib/NE-19-08): Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders. Issued May 2, 2019
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014

## Registered aircraft (15)

- [N1001F](https://openairdocs.org/aircraft/N1001F): [Ag Air Inc](https://openairdocs.org/faa-owner/AG%20AIR%20INC), [Cheyenne, WY](https://openairdocs.org/faa-place/WY/Cheyenne), built 1979, S/N 79033
- [N100HT](https://openairdocs.org/aircraft/N100HT): [Mitchell Brian N](https://openairdocs.org/faa-owner/MITCHELL%20BRIAN%20N), [Scottsdale, AZ](https://openairdocs.org/faa-place/AZ/Scottsdale), built 2010, S/N 2
- [N1201Y](https://openairdocs.org/aircraft/N1201Y): [Hhi Farms LLC](https://openairdocs.org/faa-owner/HHI%20FARMS%20LLC), [Hamilton, MI](https://openairdocs.org/faa-place/MI/Hamilton), built 1979, S/N 78-024
- [N50HB](https://openairdocs.org/aircraft/N50HB): [Dyer Randall J](https://openairdocs.org/faa-owner/DYER%20RANDALL%20J), [Frazier Park, CA](https://openairdocs.org/faa-place/CA/Frazier%20Park), S/N 3063
- [N5179](https://openairdocs.org/aircraft/N5179): [Bishop Kurt D](https://openairdocs.org/faa-owner/BISHOP%20KURT%20D), [Findlay, OH](https://openairdocs.org/faa-place/OH/Findlay), built 2007, S/N 623
- [N51859](https://openairdocs.org/aircraft/N51859): [Barr Andrew B](https://openairdocs.org/faa-owner/BARR%20ANDREW%20B), [Beulah, MS](https://openairdocs.org/faa-place/MS/Beulah), built 1979, S/N 79-026
- [N53997](https://openairdocs.org/aircraft/N53997): [Frederickson Don](https://openairdocs.org/faa-owner/FREDERICKSON%20DON), [Kokomo, IN](https://openairdocs.org/faa-place/IN/Kokomo), built 1967, S/N 3778
- [N64702](https://openairdocs.org/aircraft/N64702): [Hendrickson Flying Service Inc](https://openairdocs.org/faa-owner/HENDRICKSON%20FLYING%20SERVICE%20INC), [Rochelle, IL](https://openairdocs.org/faa-place/IL/Rochelle), built 1962, S/N 2706
- [N73249](https://openairdocs.org/aircraft/N73249): [English Air Service LLC](https://openairdocs.org/faa-owner/ENGLISH%20AIR%20SERVICE%20LLC), [Georgetown, TX](https://openairdocs.org/faa-place/TX/Georgetown), built 1964, S/N 2781
- [N73974](https://openairdocs.org/aircraft/N73974): [Triple F Flying Inc](https://openairdocs.org/faa-owner/TRIPLE%20F%20FLYING%20INC), [Benton, PA](https://openairdocs.org/faa-place/PA/Benton), built 1964, S/N 2874
- [N7574](https://openairdocs.org/aircraft/N7574): [Charles Farms Inc](https://openairdocs.org/faa-owner/CHARLES%20FARMS%20INC), [Lancaster, PA](https://openairdocs.org/faa-place/PA/Lancaster), built 1961, S/N 2665
- [N777TC](https://openairdocs.org/aircraft/N777TC): [Cook Timothy](https://openairdocs.org/faa-owner/COOK%20TIMOTHY), [Byrdstown, TN](https://openairdocs.org/faa-place/TN/Byrdstown), built 2018, S/N 0834
- [N9021R](https://openairdocs.org/aircraft/N9021R): [Sky Horse Helicopters Inc](https://openairdocs.org/faa-owner/SKY%20HORSE%20HELICOPTERS%20INC), [Brady, TX](https://openairdocs.org/faa-place/TX/Brady), S/N CCI-165
- [N955B](https://openairdocs.org/aircraft/N955B): [Lambert Brian J](https://openairdocs.org/faa-owner/LAMBERT%20BRIAN%20J), [Owasso, OK](https://openairdocs.org/faa-place/OK/Owasso), built 1954, S/N 711
- [N9595B](https://openairdocs.org/aircraft/N9595B): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), S/N 6528

## NTSB investigations (20)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA21LA335](https://openairdocs.org/ntsb/ERA21LA335), Aug 18, 2021: Hummer 260L (N777TC), Livingston, TN, substantial damage. Probable cause: A total loss of engine power for reasons that could not be determined. Contributing to the accident was the pilot’s operation of the helicopter in a flight regime that would not allow for a…
- [NTSB CEN16LA161](https://openairdocs.org/ntsb/CEN16LA161), Apr 21, 2016: Bell 47G-2A (N64702), Los Fresnos, TX, destroyed. Probable cause: The pilot's inability to see and avoid the power lines because of trees obscuring his view.
- [NTSB CEN12LA480](https://openairdocs.org/ntsb/CEN12LA480), Jul 25, 2012: Scotts-Bell 47 47G-2A (N73252), Akeley, MN, substantial damage. Probable cause: The pilot’s failure to maintain helicopter control during low altitude agricultural operations.
- [NTSB CEN12LA120](https://openairdocs.org/ntsb/CEN12LA120), Jan 1, 2012: Continental Copters 47G2 (N9021R), Lohn, TX, substantial damage. Probable cause: The improper installation of the tail rotor gearbox by maintenance personnel, which led to accelerated wear of the ring and pinion gears, resulting in the loss of tail rotor effectiveness and…
- [NTSB LAX99LA047](https://openairdocs.org/ntsb/LAX99LA047), Dec 12, 1998: Bell 47G2 (N9021R), Helendale, CA, substantial damage. Probable cause: The pilot's failure to follow proper procedures to recover from main rotor blade aerodynamic retreating blade stall.
- [NTSB MIA98LA197](https://openairdocs.org/ntsb/MIA98LA197), Jul 15, 1998: Texas Helicopter OH-13H/M47A (N1001F), Citronelle, AL, substantial damage. Probable cause: The pilot's failure to control the helicopter's altitude while overflying an area of rising terrain and trees.
- [NTSB LAX97LA285](https://openairdocs.org/ntsb/LAX97LA285), Aug 12, 1997: Bell 47G2 (N9021R), Mojave, CA, substantial damage. Probable cause: The student's improper use of the throttle and collective controls and the flight instructor's inadequate supervision of the flight.
- [NTSB MIA91LA141](https://openairdocs.org/ntsb/MIA91LA141), May 11, 1991: Bell 47-G (N955B), Aguadilla, PR, destroyed. Probable cause: THE IMPROPER IN FLIGHT PLANNING/DECISION OF THE PILOT-IN-COMMAND TO CONDUCT AN OUT-OF-GROUND-EFFECT HOVER WITH A RIGHT CROSSWIND. THIS RESULTED IN AN IN FLIGHT LOSS OF CONTROL DUE TO SETTLING WITH…
- [NTSB MIA89LA229](https://openairdocs.org/ntsb/MIA89LA229), Aug 23, 1989: Bell 47G (N955B), Ponce, PR, substantial damage. Probable cause: FAILURE OF THE AFT TAIL ROTOR DRIVE SHAFT.
- [NTSB LAX86LA283](https://openairdocs.org/ntsb/LAX86LA283), Jul 6, 1986: Texas Helicopter OH-13H/M (N51856), Valencia, CA, substantial damage
- [NTSB ATL81DKW21](https://openairdocs.org/ntsb/ATL81DKW21), Jul 29, 1981: Texas Hel M-47A (N1001F), Rickman, TN, substantial damage
- [NTSB LAX81DUQ26](https://openairdocs.org/ntsb/LAX81DUQ26), Jul 3, 1981: Texas Hel M74A (N51856), Rosamond, CA, substantial damage
- [NTSB ANC80FA015](https://openairdocs.org/ntsb/ANC80FA015), Nov 24, 1979: Bell 47G3B1 (N73249), Farewell, AK, substantial damage, 1 fatal
- [NTSB MIA78FKQ12](https://openairdocs.org/ntsb/MIA78FKQ12), May 28, 1978: Bell 47G3B (N73249), Red Lick, MS, destroyed
- [NTSB NYC75FHJ28](https://openairdocs.org/ntsb/NYC75FHJ28), Feb 27, 1975: Bell 47G-2A (N73252), New York, NY, destroyed
- [NTSB SEA74DYG07](https://openairdocs.org/ntsb/SEA74DYG07), Aug 1, 1973: Bell 47G3B (N73249), Orofino, ID, substantial damage
- [NTSB NYC72FHJ01](https://openairdocs.org/ntsb/NYC72FHJ01), Jul 11, 1971: Bell-Cci 47G2 (N9021R), Amityville, NY, substantial damage
- [NTSB MKC70F0132](https://openairdocs.org/ntsb/MKC70F0132), Aug 4, 1969: Bell 47G3B1 (N73249), Hemingford, NE, substantial damage
- [NTSB DEN66A0018](https://openairdocs.org/ntsb/DEN66A0018), Sep 1, 1965: Bell 47G3B (N73249), Durango, CO, substantial damage
- [NTSB UNK64X1853](https://openairdocs.org/ntsb/UNK64X1853), May 19, 1964: Bell 47G3B (N73249), Sheridan, WY, substantial damage

## FAA accident and incident reports (17)

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.

- [Accident 20210818014409A](https://openairdocs.org/incident/20210818014409A), Aug 18, 2021: Cook Timothy HUMMER 260L (N777TC), Livingston, TN, Substantial damage. Aircraft departed 8A3 to the north. The aircraft accelerated through etl and began its departure climb. At approximately 100 ft AGL the engine quit. Pilot…
- [Accident 20160421008359A](https://openairdocs.org/incident/20160421008359A), Apr 21, 2016: Bell 47G-2A (N64702), Los Fresnos, TX, Destroyed. On April 21, 2016, while spraying a cotton field the aircraft, Bell 47, N64702, hit two power service lines and crashed. The aircraft crashed approximately 50…
- [Accident 20120725015639A](https://openairdocs.org/incident/20120725015639A), Jul 25, 2012: Bell 47G-2A (N73252), Akeley, MN, Destroyed. Pilot stated he was making a clean up pass to the north. He crossed some small power lines as he descended and shortly thereafter felt a small vibration in the…
- [Accident 20120101000549A](https://openairdocs.org/incident/20120101000549A), Jan 1, 2012: Bell-Continental Copters Inc. 47G2 (N9021R), Lohn, TX, Substantial damage. Pilot stated he did a pre flight inspection per the operator's manual, loaded his passenger for the purpose of pasture count of deer on hunting leases. On the…
- [Accident 19981211033299A](https://openairdocs.org/incident/19981211033299A), Dec 11, 1998: Bell 47G2 (N9021R), Helendale, CA, Substantial damage. (.19)On December 11, 1998, at 1645 hours pacific standard time, a Bell 47G2, N9021R, sustained substantial damage during a forced landing near Helendale,…
- [Accident 19980715016709A](https://openairdocs.org/incident/19980715016709A), Jul 15, 1998: Bell OH13H (N1001F), Citronelle, AL, Substantial damage. (.4)As the spray helicopter turned downwind en route to his spray tract, he entered a sinking condition from which application of full power did not prevent…
- [Accident 19970812021809A](https://openairdocs.org/incident/19970812021809A), Aug 12, 1997: Bell 47G2 (N9021R), Mojave, CA, Substantial damage. On August 12, 1997, at 1000 pacific daylight time, a Bell 47G2, N9021R, la ned hard on runway 4 at the Mojave, California airport. The local area instructional…
- [Accident 19910511015429A](https://openairdocs.org/incident/19910511015429A), May 11, 1991: Bell 47G (N955B), Aguadilla, Puerto Rico, Destroyed. Got into settling with power. Impacted ground rolled over.
- [Accident 19890823036149A](https://openairdocs.org/incident/19890823036149A), Aug 23, 1989: Bell 47G (N955B), Ponce, Puerto Rico, Substantial damage. Tail rotor drive shaft sheared forward of 90 degree gear box. Made hard emergency landing.
- [Accident 19860706034439A](https://openairdocs.org/incident/19860706034439A), Jul 6, 1986: Bell OH13HTEXHELI (N51856), Van Nuys, CA, Substantial damage. Loud bang on spray run. Impacted field high sink rate. Main rotor pinion gear failed. Bogus in transmission.
- [Incident 19830206007729I](https://openairdocs.org/incident/19830206007729I), Feb 6, 1983: Bell 47G2 (N9021R), Corona, CA, Minor damage. Pilot had yaw problems during hovering. Found tail rotor drive shaft failed.
- [Accident 19810729046009A](https://openairdocs.org/incident/19810729046009A), Jul 29, 1981: Bell OH13M74TEXH (N1001F), Rickman, TN, Destroyed. Tried to take off with ground man fueling helicopter. Lost control at end of fuel hose.
- [Accident 19810703038939A](https://openairdocs.org/incident/19810703038939A), Jul 3, 1981: Bell OH13M74TEXH (N51856), Rosamond, CA, Substantial damage. Ran out of fuel during spray run. Made hard autorotation landing.
- [Accident 19791124042909A](https://openairdocs.org/incident/19791124042909A), Nov 24, 1979: Bell 47G3B (N73249), Farewell, AK, Substantial damage. Indicates lost conrol in fog, snow showers. Unskilled in type no night or helicopter hood time, carbon monoxide.
- [Accident 19780525011689A](https://openairdocs.org/incident/19780525011689A), May 25, 1978: Bell 47B3 (N73249), Red Lick, MS, Destroyed. T/r separated.
- [Accident 19750227003759A](https://openairdocs.org/incident/19750227003759A), Feb 27, 1975: Bell 47G2A (N73252), New York, NY, Destroyed. Pilot advised not to land due to traffic, gusty winds.
- [Accident 19730801026709A](https://openairdocs.org/incident/19730801026709A), Aug 1, 1973: Bell 47G3B (N73249), Orofino, ID, Substantial damage. Fuel pump failure resulted in fuel starvation. Pilot used evasive action to miss pwr lines.

## Service difficulty reports (9)

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

- [SDR AU510002119](https://openairdocs.org/sdr/AU510002119), Aug 11, 2005: SHAFT. CRACKED. THROTTLE/COLLECTIVE CONTROL SHAFT CRACKED IN AREA HIDDEN BY GEAR.
- [SDR CA010313014](https://openairdocs.org/sdr/CA010313014), Feb 28, 2001: TUBE. CRACKED. (CAN) DURING DAILY INSPECTION ON MAIN CONTROL STABILIZER BAR AS PER AD 74-08-02. PILOT FOUND STABILIZER BAR TUBE WAS CRACKED.
- [SDR 98ZZZX3311](https://openairdocs.org/sdr/98ZZZX3311), Aug 20, 1998: GEAR. FRACTURED. ENGINE FAILED WITHOUT WARNING. UPON INVESTIGATION, FOUND TIMING GEAR FRACTURED STOPPING THE MAGS. SUBMITTER STATED SUPPLIER REPORTED THEY HAVE HAD AT LEAST 5 OF
- [SDR AU980259](https://openairdocs.org/sdr/AU980259), Mar 3, 1998: STUD. FAILED. (AUS) NR 5 CYLINDER HOLD DOWN STUDS FAILED.
- [SDR AU971106](https://openairdocs.org/sdr/AU971106), May 23, 1997: BEARING. WORN. (AUS) LATERAL CYCLIC TORQUE TUBE FORWARD SUPPORT BEARING WORN.
- [SDR AU971113](https://openairdocs.org/sdr/AU971113), May 23, 1997: BEARING. WORN. (AUS) COLLECTIVE LEVER FORWARD BEARING WORN. PERSONNEL/MAINTENANCE ERROR.
- [SDR AU971105](https://openairdocs.org/sdr/AU971105), May 8, 1997: DATA PLATE. INCORRECT DATA. (AUS) SUSPECT INCORRECT DATA PLATE FITTED TO HELICOPTER. AIRCRAFT HAD BEEN EXTENSIVELY REBUILT IN 1989. PERSONNEL/MAINTENANCE ERROR.
- [SDR AU971112](https://openairdocs.org/sdr/AU971112), May 8, 1997: EXTINGUISHER. WRONG PART. (AUS) UNAPPROVED TYPE OF DRY POWDER FIRE EXTINGUISHER FITTED. UNAPPROVED PART.
- [SDR AU960299](https://openairdocs.org/sdr/AU960299), Mar 15, 1996: PISTON. WORN. (AUS) ALL SIX CYLINDERS FOUND TO HAVE EXCESSIVE WEAR TO PISTONS, RINGS AND VALVE TRAIN INCONSISTANT WITH TIME SINCE OVERHAUL - SUSPECTCAUSED BY UNREPORTED ENGIN

## STCs that may be installed (OpenAirDocs) (22)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE2932SW](https://openairdocs.org/stc/SE2932SW): Install carburetor air temperature indicator. Approved for Aircooled Motors (Franklin Engine Co.) equipped with float carburetors. Model eligibility included here may not be inclusive. Alcor LLC. Lists VO-435 Series
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp
- [STC SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists VO-435 Series
- [STC SE7504SW](https://openairdocs.org/stc/SE7504SW): Installation of any or all parts listed on Airmotive Engineering Drawing List No. 852-1, Rev. 1, dated 10/4/88, or later FAA approved revision. Continental Motors, Inc. Lists VO-435 Series
- [STC SE7665SW](https://openairdocs.org/stc/SE7665SW): Installation of parts listed on Airmotive List No. 8810-3, Rev 6. Continental Motors, Inc. Lists VO-435 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists VO-435 Series
- [STC SE2902NM](https://openairdocs.org/stc/SE2902NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE144GL](https://openairdocs.org/stc/SE144GL): Modify engine to increase compression ratio to 8.7:1. Scott's Bell 47 Inc
- [STC SE2500SW](https://openairdocs.org/stc/SE2500SW): Modification to higher compression ratio. Scott's Bell 47 Inc
- [STC SE2733SW](https://openairdocs.org/stc/SE2733SW): Modification to higher compression ratio. Scott's Bell 47 Inc
- [STC SE1-201](https://openairdocs.org/stc/SE1-201): Installation of the Richter Aero Equipment Type B-4 or B-5 Temperature Probe. (O-360 SERIES (excl. A1C, C2B, C2D)). MidContinent Instru Co Inc. Lists VO-435 Series
- [STC SE09492SC](https://openairdocs.org/stc/SE09492SC): Installation and usage of Exxon 20W50 multigrade aircraft engine oil conforming to Exxon Oil formulation WS-3013. Exxon Company USA. Lists VO-435 Series
- [STC SE00350SE](https://openairdocs.org/stc/SE00350SE): Installation of sump mounted chip detector. Aviation Development Corporation
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists VO-435 Series
- [STC SE5879SW](https://openairdocs.org/stc/SE5879SW): Use of Phillips X/C II 20W-50 and25W-60 oil (OSS 55875) in all Avco reciprocating aircraft engines from 65 to 450 BHP. Phillips Petroleum Co. Lists VO-435 Series
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists VO-435 Series
- [STC SE80NE](https://openairdocs.org/stc/SE80NE): Installation and usage of Bel-Ray synthetic aviation oil, Bel-Ray Aero 1, (nonsupercharged), horizontally opposed direct drive, aircraft engines of 350 hp. or less. Bel-Ray Company, Inc. Lists VO-435 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists VO-435 Series
- [STC SE959EA](https://openairdocs.org/stc/SE959EA): Modification to higher compression ration. Agrotors, Inc
- [STC SE2-856](https://openairdocs.org/stc/SE2-856): American Bosch Induction vibrator VJR24B56X. Bell Helicopter Textron. Lists VO-435 Series
- [STC SE44WE](https://openairdocs.org/stc/SE44WE): Use of Kling Aviation Oil, Specifications KL-100, KL-200 and KL-300 in Continental and Lycoming engines. Kling Oil Company. Lists VO-435 Series

## PMA parts (OpenAirDocs) (over 1,000, 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.

- [AB-160844](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100141747720251216184413.0001): Spring & Brush Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-160844 · Nov 10, 2025
- [OC](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178549155320250923184433.0001): Oil Cooler Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Sep 12, 2025
- [AE45BS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187750711420250908153020.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU1045BS · Aug 27, 2025
- [AE45BS-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173583138520250908153031.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-1045BS · Aug 27, 2025
- [AE15BA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167463833220250908153021.0001): Brush Rack Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALV-1015 · Aug 27, 2025
- [AE1142](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID143081434220250908153023.0001): Slip Ring End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALE-1142AAS… · Aug 27, 2025
- [AE2241](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127316494620250908153022.0001): Fan Assembly. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number 90-2241 · Aug 27, 2025
- [SL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151538433320250923185921.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [TXPL6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146504457020250923185923.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [HSS](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104096221220250923185925.0001): Engine Preheat Kit. Hartzell Propeller LLC · PMA PQ2040CE · Modification part · Aug 4, 2025
- [AB-382585](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195988018720251216184453.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382585 · Dec 8, 2023
- [AB-157160](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193485923720251216184437.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-157160 · Dec 8, 2023
- [AB-400623](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193069304920251216184444.0001): Ball Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental… · Dec 8, 2023
- [AB-51678](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192819677720251216184507.0001): Oil Deflector. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-51678 · Dec 8, 2023
- [AB-357586](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182632077520251216184446.0001): Gear. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357586 · Dec 8, 2023
- [ES10-35937-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181846469020251216184431.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-35937-8 · Dec 8, 2023
- [ES10-35935-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180932652920251216184430.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-35935-6 · Dec 8, 2023
- [AB-50765](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176916822920251216184507.0001): Clamp. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-50765 · Dec 8, 2023
- [AB-606505](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175976763420251216184439.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-606505 · Dec 8, 2023
- [AB-157158](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173837306320251216184432.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental MotorsP/N: 10-157158 · Dec 8, 2023
- [AB-92815-37](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165115893520251216184504.0001): Retaining Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-37 · Dec 8, 2023
- [AB-382584](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164325700920251216184454.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-382584 · Dec 8, 2023
- [AB-357173](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163626963020251216184452.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357173 · Dec 8, 2023
- [AB-349263](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161733554320251216184505.0001): O-Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349263 · Dec 8, 2023
- [AB-357174](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152704886320251216184451.0001): Ignition ContactAssembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-357174 · Dec 8, 2023
- [AB-391213](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID146344589820251216184434.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-391213 · Dec 8, 2023
- [AB-102083](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138991042420251216184433.0001): Screw, Distr. Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-102083 · Dec 8, 2023
- [AB-90788-5](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138975580920251216184500.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-90788-5 · Dec 8, 2023
- [AB-163374](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138652177520251216184458.0001): Felt Strip. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-163374 · Dec 8, 2023
- [AB-357426](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138013653720251216184448.0001): Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-357426 · Dec 8, 2023
- [AB-86527](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136544385220251216184459.0001): Lubricant. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-86527 · Dec 8, 2023
- [AB-382789](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131202563120251216184436.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-382789 · Dec 8, 2023
- [AB-349326](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129994820320251216184456.0001): Fish Paper. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-349326 · Dec 8, 2023
- [AB-50752](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125758886020251216184457.0001): Felt Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-50752 · Dec 8, 2023
- [AB-55501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122580157220251216184441.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-55501 · Dec 8, 2023
- [AB-391309](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120647802220251216184443.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-391309 · Dec 8, 2023
- [AB-92815-62](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118430918720251216184503.0001): Retainer Ring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental10-92815-62 · Dec 8, 2023
- [AB-90751-19](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID111572971120251216184501.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-90751-19 · Dec 8, 2023
- [AB-349511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103229167720251216184439.0001): Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Continental 10-349511 · Dec 8, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189689408720240301172612.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180471105320240301172647.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170183424420240301172611.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID169748273120240301172659.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157341881820240301172614.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [ES10-400551-6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142393419020240301172652.0001): Housing, Distributor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400551-6 · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137841244720240301172609.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID128838889420240301172611.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123611089620240301172613.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106806348320240301172652.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Dec 1, 2023
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194863206620240301172624.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Nov 9, 2023

All of them: https://openairdocs.org/engine/lycoming-vo-435-a1f/pma.md

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.