# Lycoming TIO-540-AH1A

- Type: Engine model (FAA registry)
- Registry code: 42003
- Manufacturer (registry): LYCOMING
- Model: TIO-540-AH1A
- Engine type: Reciprocating
- Power: 300 hp
- Data sheet: [TCDS E14EA](https://openairdocs.org/tcds/E14EA) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 89 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-tio-540-ah1a

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 2023-09-09](https://openairdocs.org/ad/2023-09-09): Exhaust Turbine System (Recip) · Aerostar PA-60-600 (Aerostar 600), PA-60-601 (Aerostar 601), PA-60-601P (Aerostar 601P) and 292 more. Effective Jul 17, 2023
- [AD 2017-16-11](https://openairdocs.org/ad/2017-16-11): Reciprocating Engine Power Section · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-360-B1G6 and 93 more. Effective Aug 15, 2017
- [AD 2015-19-07](https://openairdocs.org/ad/2015-19-07): Fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 187 more. Effective Nov 3, 2015
- [AD 2012-19-01](https://openairdocs.org/ad/2012-19-01): Crankshafts · Lycoming Engines AEIO-360-A1A, AEIO-360-A1B, AEIO-360-A1B6 and 321 more. Effective Oct 24, 2012
- [AD 71-13-01 R1](https://openairdocs.org/ad/71-13-01-R1): Rescinding an airworthiness directive · Lycoming Engines TIO-540-A1A, TIO-540-A1B, TIO-540-A1C and 13 more. Effective Mar 8, 2012
- [AD 2012-03-06](https://openairdocs.org/ad/2012-03-06): Fuel servo diaphragm · Continental Motors 6-260-A, 6-285-A, 6-285-B and 482 more. Effective Feb 24, 2012
- [AD 2011-13-03](https://openairdocs.org/ad/2011-13-03): Turbocharger Turbine · Lycoming Engines LTO-360-E1A6D, O-540-L3C5D, TIGO-541-E1A and 20 more. Effective Jul 13, 2011
- [AD 2009-02-03](https://openairdocs.org/ad/2009-02-03): Fuel injection servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 261 more. Effective Feb 9, 2009
- [AD 2005-12-06](https://openairdocs.org/ad/2005-12-06): Riveted-impulse coupling assemblies and snap-ring coupling assemblies · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 154 more. Effective Jul 19, 2005
- [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 2004-05-24](https://openairdocs.org/ad/2004-05-24): Zinc-plated Crankshaft Gear Retaining Bolts · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 161 more. Effective Mar 30, 2004
- [AD 2003-14-03](https://openairdocs.org/ad/2003-14-03): Rotary fuel pumps · Lycoming Engines AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 262 more. Effective Aug 14, 2003
- [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002
- [AD 97-15-11](https://openairdocs.org/ad/97-15-11): Cylinder kits · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 538 more. Effective Aug 12, 1997
- [AD 92-12-05](https://openairdocs.org/ad/92-12-05): Piston Pins · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 532 more. Effective Jul 10, 1992
- [AD 91-08-07](https://openairdocs.org/ad/91-08-07): Fuel Pump · Lycoming Engines TIO-360-A1A, TIO-360-A1B, TIO-360-A3B6 and 51 more. Effective May 6, 1991

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
- [AD 2011-26-04](https://openairdocs.org/ad/2011-26-04) (historical): Externally mounted fuel injector fuel lines · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 186 more. Effective Jan 25, 2012
- [AD 2011-15-10](https://openairdocs.org/ad/2011-15-10) (historical): Fuel servos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 256 more. Effective Aug 16, 2011
- [AD 2008-14-07](https://openairdocs.org/ad/2008-14-07) (historical): Externally mounted fuel injector fuel lines · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1B and 185 more. Effective Aug 14, 2008
- [AD 2008-08-14](https://openairdocs.org/ad/2008-08-14) (historical): Fuel injection servo plugs · Superior Air Parts AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 242 more. Effective Apr 29, 2008
- [AD 2008-06-51](https://openairdocs.org/ad/2008-06-51) (historical): Fuel injection servo plugs · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 235 more
- [AD 2006-20-09](https://openairdocs.org/ad/2006-20-09) (historical): Certain crankshafts replacing · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 82 more. Effective Nov 3, 2006
- [AD 2005-26-10](https://openairdocs.org/ad/2005-26-10) (historical): ECi cylinder assemblies. · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 413 more. Effective Jan 31, 2006
- [AD 2002-26-01](https://openairdocs.org/ad/2002-26-01) (historical): Fuel injector fuel lines · Textron Lycoming, AVCO IGO-480-A1B6, IGO-540-B1A, IGO-540-B1C and 178 more. Effective Jan 31, 2003
- [AD 2002-23-06](https://openairdocs.org/ad/2002-23-06) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, AEIO-540-D4A5, AEIO-540-D4B5 and 46 more. Effective Nov 19, 2002
- [AD 2002-20-51](https://openairdocs.org/ad/2002-20-51) (historical): Crankshaft gear retaining bolts · Textron Lycoming, AVCO AEIO-540, IO-540 Series (all), LTIO-540-F2BD and 39 more
- [AD 2002-17-53](https://openairdocs.org/ad/2002-17-53) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 36 more
- [AD 2002-04-51](https://openairdocs.org/ad/2002-04-51) (historical): Crankshaft · Lycoming Engines LTIO-540-F2BD, LTIO-540-J2B, LTIO-540-J2BD and 8 more
- [AD 98-18-12](https://openairdocs.org/ad/98-18-12) (historical): Fuel Pump · Textron Lycoming, AVCO AEIO-540-D4A5, AEIO-540-D4B5, AEIO-540-D4C5 and 249 more. Effective Sep 28, 1998

## Information bulletins (advisory) (6)

- [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-08-32R1](https://openairdocs.org/saib/NE-08-32R1): Propeller Governor  Idler Gear Shaft Set Screw. Issued May 13, 2016
- [SAIB NE-14-13](https://openairdocs.org/saib/NE-14-13): Reciprocating Engine - Cylinder Mounting Studs. Issued Mar 24, 2014
- [SAIB NE-09-04](https://openairdocs.org/saib/NE-09-04): Fuel Control/Reciprocating Engines. Issued Jan 10, 2009
- [SAIB NE-06-32R1](https://openairdocs.org/saib/NE-06-32R1): Reciprocating Engine - Crankshaft. Issued Sep 10, 2008
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008

## Registered aircraft (89, first 50)

- [N1063C](https://openairdocs.org/aircraft/N1063C): [Jim Johnson Nissan Inc](https://openairdocs.org/faa-owner/JIM%20JOHNSON%20NISSAN%20INC), [Bowling Green, KY](https://openairdocs.org/faa-place/KY/Bowling%20Green), built 2006, S/N 3257440
- [N1066B](https://openairdocs.org/aircraft/N1066B): [Wexhler David R Trustee](https://openairdocs.org/faa-owner/WEXHLER%20DAVID%20R%20TRUSTEE), [Carlsbad, CA](https://openairdocs.org/faa-place/CA/Carlsbad), built 2006, S/N 3257443
- [N1066S](https://openairdocs.org/aircraft/N1066S): [Omll Investments LLC](https://openairdocs.org/faa-owner/OMLL%20INVESTMENTS%20LLC), [Ponte Vedra Beach, FL](https://openairdocs.org/faa-place/FL/Ponte%20Vedra%20Beach), built 2007, S/N 3257457
- [N106L](https://openairdocs.org/aircraft/N106L): [Valiair Lc Trustee](https://openairdocs.org/faa-owner/VALIAIR%20LC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 2000, S/N 3257130
- [N1197L](https://openairdocs.org/aircraft/N1197L): [Boothe Vincent A](https://openairdocs.org/faa-owner/BOOTHE%20VINCENT%20A), [Fairhope, AL](https://openairdocs.org/faa-place/AL/Fairhope), built 2006, S/N T20608697
- [N128HB](https://openairdocs.org/aircraft/N128HB): [Sowle LLC](https://openairdocs.org/faa-owner/SOWLE%20LLC), [Tampa, FL](https://openairdocs.org/faa-place/FL/Tampa), built 2007, S/N 3257479
- [N132GM](https://openairdocs.org/aircraft/N132GM): [Sky West Aviation Inc Trustee](https://openairdocs.org/faa-owner/SKY%20WEST%20AVIATION%20INC%20TRUSTEE), [Albuquerque, NM](https://openairdocs.org/faa-place/NM/Albuquerque), built 2003, S/N 3257335
- [N132GT](https://openairdocs.org/aircraft/N132GT): [Legal Eagle 2 LLC](https://openairdocs.org/faa-owner/LEGAL%20EAGLE%202%20LLC), [Jefferson City, MO](https://openairdocs.org/faa-place/MO/Jefferson%20City), built 2007, S/N 3257447
- [N137HP](https://openairdocs.org/aircraft/N137HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2015, S/N GA8-TC 320-15-218
- [N139HP](https://openairdocs.org/aircraft/N139HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2015, S/N GA8-TC-320-15-224
- [N140HP](https://openairdocs.org/aircraft/N140HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2013, S/N GA8-TC-320-13-198
- [N148HP](https://openairdocs.org/aircraft/N148HP): [Alternative Travel LLC](https://openairdocs.org/faa-owner/ALTERNATIVE%20TRAVEL%20LLC), [Loveland, CO](https://openairdocs.org/faa-place/CO/Loveland), built 2016, S/N GA8-TC-320-16-229
- [N153HP](https://openairdocs.org/aircraft/N153HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2016, S/N GA8-TC-320-16-232
- [N156HP](https://openairdocs.org/aircraft/N156HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2016, S/N GA8-TC-320-16-234
- [N159HP](https://openairdocs.org/aircraft/N159HP): [California Highway Patrol](https://openairdocs.org/faa-owner/CALIFORNIA%20HIGHWAY%20PATROL), [Sacramento, CA](https://openairdocs.org/faa-place/CA/Sacramento), built 2018, S/N GA8-TC-320-18-246
- [N165PW](https://openairdocs.org/aircraft/N165PW): [County Of San Bernardino](https://openairdocs.org/faa-owner/COUNTY%20OF%20SAN%20BERNARDINO), [San Bernardino, CA](https://openairdocs.org/faa-place/CA/San%20Bernardino), built 2014, S/N GA8-TC 320-14-205
- [N1753S](https://openairdocs.org/aircraft/N1753S): [Fsa Aviation Inc](https://openairdocs.org/faa-owner/FSA%20AVIATION%20INC), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2012, S/N GA8-TC 320-12-175
- [N2035](https://openairdocs.org/aircraft/N2035): [2035 Holdings LLC](https://openairdocs.org/faa-owner/2035%20HOLDINGS%20LLC), [North Las Vegas, NV](https://openairdocs.org/faa-place/NV/North%20Las%20Vegas), built 2007, S/N 3257462
- [N209PD](https://openairdocs.org/aircraft/N209PD): [Modesto Police Department](https://openairdocs.org/faa-owner/MODESTO%20POLICE%20DEPARTMENT), [Modesto, CA](https://openairdocs.org/faa-place/CA/Modesto), built 2012, S/N GA8-TC 320-12-186
- [N213C](https://openairdocs.org/aircraft/N213C): [Levins Kenneth](https://openairdocs.org/faa-owner/LEVINS%20KENNETH), [Alameda, CA](https://openairdocs.org/faa-place/CA/Alameda), built 2006, S/N 3257436
- [N218AZ](https://openairdocs.org/aircraft/N218AZ): [Zavaleta Eric](https://openairdocs.org/faa-owner/ZAVALETA%20ERIC), [Abilene, TX](https://openairdocs.org/faa-place/TX/Abilene), built 2008, S/N 3257486
- [N225AV](https://openairdocs.org/aircraft/N225AV): [Y-O Cattle Co LLC](https://openairdocs.org/faa-owner/Y-O%20CATTLE%20CO%20LLC), [Laredo, TX](https://openairdocs.org/faa-place/TX/Laredo), S/N GA8-TC 320-13-192
- [N244CJ](https://openairdocs.org/aircraft/N244CJ): [Paula Stewart LLC](https://openairdocs.org/faa-owner/PAULA%20STEWART%20LLC), [Saipan, MP](https://openairdocs.org/faa-place/MP/Saipan), built 2017, S/N GA8-TC-320-17-239
- [N255AV](https://openairdocs.org/aircraft/N255AV): [Paula Stewart LLC](https://openairdocs.org/faa-owner/PAULA%20STEWART%20LLC), [Saipan, MP](https://openairdocs.org/faa-place/MP/Saipan), built 2015, S/N GA8-TC-320-15-215
- [N25CA](https://openairdocs.org/aircraft/N25CA): [White Dog Aviation LLC](https://openairdocs.org/faa-owner/WHITE%20DOG%20AVIATION%20LLC), [Portola Valley, CA](https://openairdocs.org/faa-place/CA/Portola%20Valley), built 2006, S/N 3257424
- [N25UX](https://openairdocs.org/aircraft/N25UX): [Burgundy Aviation Inc Trustee](https://openairdocs.org/faa-owner/BURGUNDY%20AVIATION%20INC%20TRUSTEE), [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington), built 2000, S/N 3257178
- [N2601B](https://openairdocs.org/aircraft/N2601B): [Qualitair LLC Trustee](https://openairdocs.org/faa-owner/QUALITAIR%20LLC%20TRUSTEE), Michelstadt, built 2006, S/N 3257421
- [N265PW](https://openairdocs.org/aircraft/N265PW): [San Bernardino County Sheriff'S Department](https://openairdocs.org/faa-owner/SAN%20BERNARDINO%20COUNTY%20SHERIFF'S%20DEPARTMENT), [San Bernardino, CA](https://openairdocs.org/faa-place/CA/San%20Bernardino), built 2018, S/N GA8-TC 320-18-250
- [N289MJ](https://openairdocs.org/aircraft/N289MJ): [J-Com Aviation LLC](https://openairdocs.org/faa-owner/J-COM%20AVIATION%20LLC), [Richland, MS](https://openairdocs.org/faa-place/MS/Richland), built 2007, S/N 3257472
- [N289P](https://openairdocs.org/aircraft/N289P): [Cdr Development LLC](https://openairdocs.org/faa-owner/CDR%20DEVELOPMENT%20LLC), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), built 2007, S/N 3257444
- [N28PZ](https://openairdocs.org/aircraft/N28PZ): [Asa Obion LLC](https://openairdocs.org/faa-owner/ASA%20OBION%20LLC), [Union City, TN](https://openairdocs.org/faa-place/TN/Union%20City), built 2006, S/N 3257418
- [N301TC](https://openairdocs.org/aircraft/N301TC): [Southern Aircraft Consultancy Inc Trustee](https://openairdocs.org/faa-owner/SOUTHERN%20AIRCRAFT%20CONSULTANCY%20INC%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 2001, S/N 3257257
- [N3088H](https://openairdocs.org/aircraft/N3088H): [Don Abney Inc](https://openairdocs.org/faa-owner/DON%20ABNEY%20INC), [Patterson, LA](https://openairdocs.org/faa-place/LA/Patterson), built 2007, S/N 3257465
- [N3092J](https://openairdocs.org/aircraft/N3092J): [Jett-A Aviation LLC](https://openairdocs.org/faa-owner/JETT-A%20AVIATION%20LLC), [Houston, TX](https://openairdocs.org/faa-place/TX/Houston), built 2008, S/N 3257487
- [N3098H](https://openairdocs.org/aircraft/N3098H): [Icarus Be Damned LLC](https://openairdocs.org/faa-owner/ICARUS%20BE%20DAMNED%20LLC), [Algonquin, IL](https://openairdocs.org/faa-place/IL/Algonquin), built 2007, S/N 3257478
- [N3114A](https://openairdocs.org/aircraft/N3114A): [Tavallaee Mehran Monazam](https://openairdocs.org/faa-owner/TAVALLAEE%20MEHRAN%20MONAZAM), [Crossville, TN](https://openairdocs.org/faa-place/TN/Crossville), built 2008, S/N 3257490
- [N3120T](https://openairdocs.org/aircraft/N3120T): [Mcbride Matthew T](https://openairdocs.org/faa-owner/MCBRIDE%20MATTHEW%20T), [Eagle River, WI](https://openairdocs.org/faa-place/WI/Eagle%20River), built 2006, S/N 3257417
- [N3129B](https://openairdocs.org/aircraft/N3129B): [Raabe Craig A](https://openairdocs.org/faa-owner/RAABE%20CRAIG%20A), [West Hartford, CT](https://openairdocs.org/faa-place/CT/West%20Hartford), built 2006, S/N 3257415
- [N3138B](https://openairdocs.org/aircraft/N3138B): [Buck Enterprises LLC](https://openairdocs.org/faa-owner/BUCK%20ENTERPRISES%20LLC), [Henderson, NV](https://openairdocs.org/faa-place/NV/Henderson), built 2006, S/N 3255044
- [N313PP](https://openairdocs.org/aircraft/N313PP): [Mw Collins Inc](https://openairdocs.org/faa-owner/MW%20COLLINS%20INC), [Cobbtown, GA](https://openairdocs.org/faa-place/GA/Cobbtown), built 2006, S/N 3255051
- [N3143J](https://openairdocs.org/aircraft/N3143J): [Lyden Air LLC](https://openairdocs.org/faa-owner/LYDEN%20AIR%20LLC), [Walbridge, OH](https://openairdocs.org/faa-place/OH/Walbridge), built 2006, S/N 3257427
- [N3151H](https://openairdocs.org/aircraft/N3151H): [D S R D Investments LLC](https://openairdocs.org/faa-owner/D%20S%20R%20D%20INVESTMENTS%20LLC), [Oklahoma City, OK](https://openairdocs.org/faa-place/OK/Oklahoma%20City), built 2006, S/N 3257428
- [N321YH](https://openairdocs.org/aircraft/N321YH): [Aig Aeronautics LLC](https://openairdocs.org/faa-owner/AIG%20AERONAUTICS%20LLC), [Guaynabo, PR](https://openairdocs.org/faa-place/PR/Guaynabo), built 2005, S/N 3257386
- [N32SJ](https://openairdocs.org/aircraft/N32SJ): [Cutter Southwest Aircraft Sales LLC](https://openairdocs.org/faa-owner/CUTTER%20SOUTHWEST%20AIRCRAFT%20SALES%20LLC), [Phoenix, AZ](https://openairdocs.org/faa-place/AZ/Phoenix), built 2007, S/N 3257473
- [N3311G](https://openairdocs.org/aircraft/N3311G): [Edge Construction & Consulting Inc](https://openairdocs.org/faa-owner/EDGE%20CONSTRUCTION%20%26%20CONSULTING%20INC), [Bement, IL](https://openairdocs.org/faa-place/IL/Bement), built 2007, S/N 3257454
- [N344TA](https://openairdocs.org/aircraft/N344TA): [Jcg-Air LLC](https://openairdocs.org/faa-owner/JCG-AIR%20LLC), [Valdosta, GA](https://openairdocs.org/faa-place/GA/Valdosta), built 2006, S/N 3255048
- [N385HP](https://openairdocs.org/aircraft/N385HP): [Agri-Land West LLC](https://openairdocs.org/faa-owner/AGRI-LAND%20WEST%20LLC), [Newton, NC](https://openairdocs.org/faa-place/NC/Newton), built 2007, S/N 3257467
- [N41322](https://openairdocs.org/aircraft/N41322): [Jackson Ben](https://openairdocs.org/faa-owner/JACKSON%20BEN), [Wrightsville, GA](https://openairdocs.org/faa-place/GA/Wrightsville), built 1999, S/N 3257078
- [N432LL](https://openairdocs.org/aircraft/N432LL): [Buckingham Aero LLC](https://openairdocs.org/faa-owner/BUCKINGHAM%20AERO%20LLC), [Buckingham, VA](https://openairdocs.org/faa-place/VA/Buckingham), built 2006, S/N 3257432
- [N436MA](https://openairdocs.org/aircraft/N436MA): [Jjj Holdings LLC](https://openairdocs.org/faa-owner/JJJ%20HOLDINGS%20LLC), [Helena, MT](https://openairdocs.org/faa-place/MT/Helena), built 2007, S/N 3257469

All 89: https://openairdocs.org/engine/lycoming-tio-540-ah1a/aircraft.md

## NTSB investigations (7)

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 ERA20FA026](https://openairdocs.org/ntsb/ERA20FA026), Nov 1, 2019: Piper PA32R (N181AG), Paducah, KY, destroyed, 1 fatal. Probable cause: The pilot’s failure to fully seat the fuel selector in the proper tank position during the descent for landing, which resulted in fuel starvation and a total loss of engine power.
- [NTSB GAA18CA021](https://openairdocs.org/ntsb/GAA18CA021), Oct 1, 2017: Piper PA32R (N1054S), Block Island, RI, destroyed. Probable cause: The pilot's use of an incorrect airspeed during landing, which resulted in a runway overrun.
- [NTSB ERA11LA457](https://openairdocs.org/ntsb/ERA11LA457), Aug 16, 2011: Piper PA-32R-301T (N492ST), Graham, NC, substantial damage. Probable cause: The individual's fuel mismanagement, which resulted in fuel exhaustion and a subsequent engine failure. Contributing the accident was the individual’s failure to maintain adequate airspeed following…
- [NTSB WPR10LA128](https://openairdocs.org/ntsb/WPR10LA128), Feb 4, 2010: Piper PA-32R-301T (N1060X), Dolan Springs, AZ, substantial damage. Probable cause: The fuel flow divider inlet line nut coming loose during cruise flight, resulting in a fuel leak and in-flight fire. The root cause of the loose B-nut fitting could not be determined. Contributing to…
- [NTSB DEN08CA051](https://openairdocs.org/ntsb/DEN08CA051), Jan 17, 2008: Piper PA-32-301XTC (N819C), Taos, NM, substantial damage. Probable cause: The pilot's excessive airspeed during the approach and loss of control during the landing. Contributing factors were the mountain turbulence and the snowbank.
- [NTSB NYC07IA199](https://openairdocs.org/ntsb/NYC07IA199), Aug 15, 2007: Piper PA-32R-301T (N3120T), Alton, IL, incident, minor damage. Probable cause: The component manufacturer's inadequate fabrication of the transient voltage suppressor.
- [NTSB MIA06CA072](https://openairdocs.org/ntsb/MIA06CA072), Mar 26, 2006: Piper PA32-301 (N326XT), Key West, FL, substantial damage. Probable cause: The failure of the pilot to maintain directional control during the landing roll with a crosswind, resulting in collapse of the nose landing gear.

## FAA accident and incident reports (13)

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 20191031017419A](https://openairdocs.org/incident/20191031017419A), Oct 31, 2019: New Piper Aircraft Inc PA-32R-301T (N181AG), Paducah, KY, Destroyed, 1 fatal. Aircraft was destroyed during a forced landing, resulting from complete loss of engine power. During landing, the aircraft impacted a tree, removing the outer…
- [Accident 20171001016599A](https://openairdocs.org/incident/20171001016599A), Oct 1, 2017: Piper PA-32R-301T (N1054S), Block Island, RI, Substantial damage. On October 1, 2017, about 1300 eastern daylight time, a Piper PA-32R-301T, N1054S, owned by ^richard faherty^ and operated by ^thomas pepe,^ sustained…
- [Incident 20120412007319I](https://openairdocs.org/incident/20120412007319I), Apr 12, 2012: Piper Aircraft Inc PA-32R-301T (N3092J), Birmingham, AL, Minor damage. On April 12, 2012, N3092J, a Piper PA32R-301T, landed on runway 6 at kbhm at approximately 2000 local. After touchdown and landing rollout, the airman stated…
- [Incident 20111203027659I](https://openairdocs.org/incident/20111203027659I), Dec 3, 2011: Piper PA-32R-301T (N6059U), New Hudson, MI, Minor damage. PIC set up for normal night landing on runway 26 at Y47, there was light drizzle at the time and the runway surface was damp. Due to power lines on final…
- [Accident 20110816022699A](https://openairdocs.org/incident/20110816022699A), Aug 16, 2011: Piper Aircraft Inc PA-32R-301T (N492ST), Graham, NC, Substantial damage. Aircraft was allegedly stolen and flown from horace williams airport (igx), chapel hill, NC. It was flown by a person with an expired student pilot certificate…
- [Incident 20100919046299I](https://openairdocs.org/incident/20100919046299I), Sep 19, 2010: Piper Aircr PA-32R-301T (N474ST), Pottstown, PA, Minor damage. Landed on runway 28, turned on taxiway. Saw skunk and turn left to avoid skunk. Ran off taxiway to the left. Nose landing gear colapsed when it hit storm drain…
- [Incident 20100311036029I](https://openairdocs.org/incident/20100311036029I), Mar 11, 2010: Piper Aircr PA-32R-301T (N974C), Houma, LA, Minor damage. Student pilot landed with gear up. Forgot to lower gear.
- [Accident 20100204027479A](https://openairdocs.org/incident/20100204027479A), Feb 4, 2010: Piper Aircr PA-32R-301T (N1060X), Kingman, AZ, Destroyed. Pilot[privacy data omitted] of Piper PA-32R-301T, N1060X, was enroute from st. george, Utah to Kingman, Arizona. While cruising at 9,500 feet pilot detected…
- [Incident 20080930855619I](https://openairdocs.org/incident/20080930855619I), Sep 30, 2008: Piper PA32R301T (N1074P), Charleston, SC, Minor damage. Aircraft was on runway 22/04 with all three landing gears in the up position. Examined the aircraft condition and noted that the landing gear selector was in…
- [Incident 20080407832679I](https://openairdocs.org/incident/20080407832679I), Apr 7, 2008: Piper PA32R301T (N3129B), Shabbona, IL, No damage. (-23) On 04/07/2008 Piper N3129B was approximately 20 miles west of aurora airport in aurora, Illinois when the engine "coughed for about 4-5 seconds, then…
- [Accident 20080117009739A](https://openairdocs.org/incident/20080117009739A), Jan 17, 2008: Piper PA32301XTC (N819C), Angel Fire, NM, Substantial damage. (-23) At approximately 1625 MST on January 24, 2008, the pilot of N819C, a Piper PA-32-301XTC, aborted the landing roll midway down runway 35 at Angel Fire…
- [Accident 20070815018269A](https://openairdocs.org/incident/20070815018269A), Aug 15, 2007: Piper PA32R301T (N3120T), East Alton, IL, No damage. (-23) On August 15, 2007 a Piper PA-32R-301T N3120T enroute from aurora municipal airport (karr) to spirit of st. louis (ksus) the pilot noticed smoke coming…
- [Accident 20060326003279A](https://openairdocs.org/incident/20060326003279A), Mar 26, 2006: Piper PA32301XTC (N326XT), Key West, FL, Substantial damage. (-23) During landing with a 13 knot crosswind, the aircraft departed the north side of runway 9 and skidded to a halt approximately 300 feet from the runway…

## Service difficulty reports (28)

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

- [SDR 2023FA0000794](https://openairdocs.org/sdr/2023FA0000794), Oct 21, 2023: INTAKE VALVE. BROKEN. ENGINE LOST POWER ON TAKEOFF ROLL AND TAKE OFF WAS SAFELY ABORTED. FOUND NO COMPRESSION ON CYLINDER #6 AND DETERMINED THE ENTIRE INTAKE VALVE WAS MISSING. FOUND
- [SDR SMTR20190508001](https://openairdocs.org/sdr/SMTR20190508001), May 6, 2019: OIL SYSTEM. DEFECTIVE. OIL COOLER RUPTURED DURING COLD ENGINE START. INVESTIGATION DETERMINED OIL PRESSURE EXPERIENCED BY THE OIL COOLER AT INITIAL COLD ENGINE START REACHED 425 PSI. 
- [SDR 2017FA0000237](https://openairdocs.org/sdr/2017FA0000237), Jun 5, 2017: DIFFUSER. DAMAGED. DURING AN ANNUAL INSPECTION, THE TECHNICIAN DROPPED THE OIL ON THE AIRCRAFT AND CLOSED THE SUMP DRAIN. LEFT FOR THE EVENING. UPON RETURN, NOTICED OIL LEAKING FR
- [SDR 2017FA0000144](https://openairdocs.org/sdr/2017FA0000144), Jan 14, 2017: PUMP. INOPERATIVE. PRE-FLIGHT RUN-UP DISCOVERED LACK OF TAKE OFF POWER AND ENGINE VIBRATION. THE AIRCRAFT FLIGHT WAS ABORTED AND THE AIRCRAFT RETURNED TO THE HANGER. THE ENGINE WA
- [SDR 2016FA0000090](https://openairdocs.org/sdr/2016FA0000090), Feb 11, 2016: OIL SYSTEM. OVERTEMP. ON CLIMBOUT TO 9000 FT OIL TEMP WENT TO 240 DEGREES F AT 7500 FT. REDUCED POWER TO 20MAP AND TEMP KEPT CLIMBING TO 270. MADE A PRECAUTIONARY LANDING. GROUND TEM
- [SDR CA151125006](https://openairdocs.org/sdr/CA151125006), Nov 23, 2015: SKIN. UNSECURE. (CAN) SINCE THE OPERATION ON THE AIRCRAFT, ALL THE WING PANELS HAVE BEEN NOTICED TO BE COMING LOSE DURING ANY SCHEDULED MAINTENANCE PROCEDURE. ALL THE NUMBER 6 
- [SDR 2015FA0000511](https://openairdocs.org/sdr/2015FA0000511), Oct 27, 2015: MAGNETO. OUT OF ADJUST. THE PILOT REPORTED THAT HIS ENGINE WAS HARD TO START AND GETTING WORSE. THE ENGINE TO MAGNETO TIMING WAS CHECKED AND REVEALED THE TIMING ON BOTH MAGNETOS WERE A
- [SDR PCPR201510140001](https://openairdocs.org/sdr/PCPR201510140001), Oct 13, 2015: BRAKE SYS. FAILED. PILOT REPORTED TO MAINTENANCE CREW, WHEN DEPRESSING PILOT'S SIDE RUDDER PEDALS FOR BRAKING, RT BRAKE HAD NO PRESSURE AND DID NOT BRAKE. PILOT RELEASED PEDALS AN
- [SDR CA150930014](https://openairdocs.org/sdr/CA150930014), Sep 12, 2015: TUBE. DAMAGED. (CAN) UPON LANDING A FLAT TIRE ON THE LT SIDE HAPPENED. UPON FURTHER INSPECTION, WE FOUND THAT THERE WAS A MISSING VALVE STEM. THE VALVE STEM WAS COMPLETELY RIP
- [SDR CA150930015](https://openairdocs.org/sdr/CA150930015), Sep 12, 2015: FAN. FAILED. (CAN) DURING FLIGHT, A WARNING NOTIFICATION WAS GIVEN TO THE PILOT ON THE GDU DISPLAY STATING FAN FAULT. UPON INSPECTION AT THE MAINTENANCE FACILITY, WE FOUND T
- [SDR CA150930013](https://openairdocs.org/sdr/CA150930013), Aug 24, 2015: MAGNETO. MALFUNCTIONED. (CAN) AT ABOUT 200 HOURS AFTER INSTALLATION OF A NEW OR OVERHAULED P/N 6160 MAGNETO, WE HAVE NOTICED THAT THE ENGINE IS HARD OF STARTING. THIS IS THE L/H MAGNET
- [SDR CA150823005](https://openairdocs.org/sdr/CA150823005), Jul 29, 2015: MAGNETO. MALFUNCTIONED. (CAN) ENGINE DIFFICULT TO START WHEN HOT. INSPECTED FOUND BAD IMPULSE COUPLING. MAINTENANCE COMPLETED. THIS MAG FAILURE OCCURS WELL DESCRIBED MAGNETO OVERHAUL/5
- [SDR CA150823004](https://openairdocs.org/sdr/CA150823004), Jul 9, 2015: MAGNETO. OUT OF ADJUST. (CAN) ENGINE DIFFICULT TO START WHEN HOT AND MAG TIMING OUT OF LIMITS IAW SERVICE LETTER.
- [SDR CA150823003](https://openairdocs.org/sdr/CA150823003), May 27, 2015: MAGNETO. UNKNOWN. (CAN) ENGINE DIFFICULT TO START WHEN HOT. REMOVED AND REPLACED THE LT MAGNETO.
- [SDR CA150823002](https://openairdocs.org/sdr/CA150823002), Apr 15, 2015: MAGNETO. MALFUNCTIONED. (CAN) ENGINE DIFFICULT TO START WHEN HOT. REMOVED AND REPLACED THE LT MAGNETO.
- [SDR CA150823001](https://openairdocs.org/sdr/CA150823001), Feb 27, 2015: OIL FILL PORT. CRACKED. (CAN) AIRCRAFT LEFT OVERNIGHT IN THE COLD (-30) WITHOUT PLUG-IN. OIL COOLER CRACKED ON START-UP, AS INDICATED BY OIL LEAK FROM ENGINE COWL. S/N 912-10659-20 AND
- [SDR CA150212011](https://openairdocs.org/sdr/CA150212011), Feb 7, 2015: BREATHER TUBE. DAMAGED. (CAN) ICE FORMED INSIDE OF LOWER END OF TUBE THAT IS EXPOSED TO COLD AIRFLOW BELOW COWLING. THE BREATHING TUBE IS STREAMLINED A SMALL AMOUNT, WHICH RESTRICTS AI
- [SDR CA150303007](https://openairdocs.org/sdr/CA150303007), Jan 17, 2015: SETSCREW. DAMAGED. (CAN) IN FLIGHT FAILURE OF ENGINE DURING CRUISE. ENGINE DISASSEMBLY AND ASSESSMENT FOUND INCORRECT PROPELLER GOVERNOR GEAR SHAFT SET SCREW P AND INCORRECT SAFTE
- [SDR CA140823001](https://openairdocs.org/sdr/CA140823001), Aug 23, 2014: COUPLING. CRACKED. (CAN) DURING INSPECTION, FOUND ENGINE EXHAUST TO TURBOCHARGER WASTEGATE VALVE V-BAND COUPLING, CRACKED.
- [SDR 3WGR20140502001](https://openairdocs.org/sdr/3WGR20140502001), Apr 18, 2014: MAGNETO. CONTAMINATED. DURING 100 HOUR INSPECTION, FOUND BOTH MAGNETOS WERE CONTAMINATED WITH ENGINE OIL. LT MAGNETO TO ENGINE WAS SET AT 25 DEGREES BEFORE TOP DEAD CENTER (BTDC). IT 
- [SDR 2012FA0000299](https://openairdocs.org/sdr/2012FA0000299), Apr 19, 2012: IMPULSE COUPLING. LOOSE. DURING 500 HOUR INSPECTION OF MAGNETO SB 1-86B IMPULSE COUPLING INSPECTION. FOUND A LOOSE RIVET.
- [SDR 2011FA0000085](https://openairdocs.org/sdr/2011FA0000085), Jan 26, 2011: STRUCTURE. CRACKED. WHILE PERFORMING MANDATORY SB 1216A OF AILERON RIB INSP, THE MECHANIC FOUND A CRACK ON THE RT OTBD L/E AT COUNTER WEIGHT ATTACH POINT.
- [SDR 2010FA0000596](https://openairdocs.org/sdr/2010FA0000596), Jun 8, 2010: MECHANISM. BURNED. PILOT REPORTED ROUGH RUNNING ENGINE. AFTER INSPECTION OF BOTH MAGNETOS, IT WAS FOUND THAT THE INTERNAL PARTS WERE BURNED AND DETERIORATED. THIS CONDITION WAS FO
- [SDR 2010FA0000597](https://openairdocs.org/sdr/2010FA0000597), Jun 8, 2010: MAGNETO. BURNED. PILOT REPORTED ROUGH RUNNING ENGINE. AFTER INSPECTION OF BOTH MAGNETOS, IT WAS FOUND THAT THE INTERNAL PARTS WERE BURNED AND DETERIORATED. THIS CONDITION WAS FO
- [SDR 2010FA0001105](https://openairdocs.org/sdr/2010FA0001105), Apr 18, 2010: LANDING GEAR. DISTORTED. DAMAGE OCCURRED TO NLG SUPPORT STRUCTURE DURING THE RETRACT CYCLE OF MLG AFTER TAKEOFF. FULL (OR CLOSE TO FULL) RUDDER CONTROL IMPUTED DURING THIS CYCLE. A LOUD
- [SDR 2007FA0000873](https://openairdocs.org/sdr/2007FA0000873), Aug 27, 2007: MAGNETO. DAMAGED. THIS AIRCRAFT HAD A SET OF MAGS INSTALLED AT APPROXIMATELY 400 HRS TT, AT 596 HRS TT, INSTALLED ANOTHER O/H MAG ON THE LT, DUE TO AN OVERHEAT SITUATION. IT APPE
- [SDR 2007FA0000218](https://openairdocs.org/sdr/2007FA0000218), Feb 2, 2007: BAFFLE. CRACKED. DURING ENGINE OIL CHANGE FOUND RIVET HEAD IN OIL SUMP SCREEN. REMOVED ENGINE AND OIL SUMP ASSY. FOUND OIL SUMP BAFFLE ASY RIVETS SHEARED OFF AND ATTACH HOLES BR
- [SDR 2006FA0000965](https://openairdocs.org/sdr/2006FA0000965), Sep 2, 2006: PRESSURE SWITCH. FAILED. AT AN ANNUAL INSPECTION IT WAS NOTED THE MAIN GEAR FAILED TO CYCLE COMPLETELY BEFORE PUMP SHUT OFF. PUMP CYCLED ON AND OFF UNTIL MAINS WERE FULLY RETRACTED. PUM

## STCs that may be installed (OpenAirDocs) (28)

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 SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc
- [STC SE04349CH](https://openairdocs.org/stc/SE04349CH): Installation of SureFly electronic ignition. SureFly Partners Ltd
- [STC SE01954SE](https://openairdocs.org/stc/SE01954SE): Installation of engine crankcase seal. Ly-Con Rebuilding Company
- [STC SE02352CH](https://openairdocs.org/stc/SE02352CH): Installation of Challenger cleanable oil filter assembly. Challenger Aviation Products Inc
- [STC SE00939WI](https://openairdocs.org/stc/SE00939WI): Installation of B&C Specialty Products Model BC 315-( ) Starter on Lycoming engines. B & C Specialty Products Inc
- [STC SE03309CH](https://openairdocs.org/stc/SE03309CH): Installation of Engine Preheat Kit, p/n TSP6CYL-2927-115 for 115 volt application. Hartzell Propeller Inc
- [STC SE01436LA](https://openairdocs.org/stc/SE01436LA): Installation of Firewall Forward Technologies LLC modified camshaft. Centri-lube Technologies LLC
- [STC SE04577CH](https://openairdocs.org/stc/SE04577CH): Install an electronic engine ignition system. Electroair Acquisition Corp
- [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
- [STC SE8628SW](https://openairdocs.org/stc/SE8628SW): Installation of oil nozzles for lubrication of cam and filters. Cygnet Aerospace Corp
- [STC SE04445AT](https://openairdocs.org/stc/SE04445AT): Installation of Continental Motors, Inc. (CMI) S-1200 Series Magnetos (10-349290-1 and 10-349310-1) and associated hardware. Continental Motors Inc
- [STC SE09445SC](https://openairdocs.org/stc/SE09445SC): Installation of fuel injector nozzles. General Aviation Modifications Inc. Lists TIO-540 Series
- [STC SE7503SW](https://openairdocs.org/stc/SE7503SW): 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 TIO-540 Series
- [STC SE7668SW](https://openairdocs.org/stc/SE7668SW): Installation of parts listed on Drawing List 8810-3, Rev 6. Continental Motors, Inc. Lists TIO-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists TIO-540 Series
- [STC SE00226NY](https://openairdocs.org/stc/SE00226NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter Models 149-24HT and 122-24HT. Approval limited to 24-volt DC source available to the starter. Hartzell Engine Technologies, LLC
- [STC SE02436AT](https://openairdocs.org/stc/SE02436AT): Installation of 200F series fuel pump assembly. Kelly Aerospace Energy Systems LLC
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc
- [STC SE1779NM](https://openairdocs.org/stc/SE1779NM): Installation of Precise Flight, Inc. Standby Vacuum System SVS III. Precise Flight Inc
- [STC SE5743NM](https://openairdocs.org/stc/SE5743NM): Intallation of adapter for externally mounted oil filter. Aviation Development Corporation
- [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 TIO-540 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 TIO-540 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 TIO-540 Series
- [STC SE244NE](https://openairdocs.org/stc/SE244NE): Installation of Mattituck plasma flame sprayed cylinder barrels in Teledyne reciprocating engines. Mattituck Airbase, Inc. Lists TIO-540 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 TIO-540 Series
- [STC SE128NE](https://openairdocs.org/stc/SE128NE): Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines. AMS/OIL. Lists TIO-540 Series
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC

## 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.

- [ES10-35937-24](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID197935247820251216184356.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-35937-24 · Nov 10, 2025
- [ES10-349242](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191126541120251216184408.0001): Gear, Spur, 1200 Series, 6-Cyl. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349242 · Nov 10, 2025
- [ES10-349221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187202026820251216184358.0001): Stud, Hex 10-32. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349221 · Nov 10, 2025
- [ES-349290-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184368314320251216184349.0001): Magneto Assembly, S-1200 Series, 6 Cyl. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349290-1, BL-349290-1, S6LN-1208 · Nov 10, 2025
- [ES10-349328](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID177093371120251216184403.0001): Flat Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349328 · Nov 10, 2025
- [ES10-78655](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175652115720251216184359.0001): Washer, Flat. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-78655 · Nov 10, 2025
- [ES10-349243-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168450546720251216184401.0001): Cam, 1200. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349243-2 · Nov 10, 2025
- [ES66M19385](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148017502420251216184409.0001): Clamp, Magneto. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 66M19385 · Nov 10, 2025
- [ES-349310-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134411482320251216184352.0001): Magneto Assembly, S-1200 Series, 6 Cyl. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349310-1, BL-349310-1, S6LN-1209 · Nov 10, 2025
- [ES10-180046-28](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124932865220251216184357.0001): Sleeve, Clear. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-180046-28 · Nov 10, 2025
- [ES10-349247](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123413721520251216184406.0001): Retainer, Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349247 · Nov 10, 2025
- [ES10-5752](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123190322120251216184400.0001): Cable, Clip. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-5752 · Nov 10, 2025
- [ES10-349249](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113112716820251216184404.0001): Washer, Bowed. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-349249 · Nov 10, 2025
- [ES10-400567](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105498904920251216184405.0001): Bearing, Ball. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces 10-400567 · Nov 10, 2025
- [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
- [AE943](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185624017520250908153027.0001): Rotor Shaft. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number ALU-228 · Aug 27, 2025
- [AE1003](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179565848920250908153019.0001): Drive End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Number A2E1003K · 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
- [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
- [AE1132](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103582853720250908153023.0001): Slip Ring End Housing. Aerospace Turbine Rotables · PMA PQ3736CE · Replaces Prestolite Part Numbers ALK-1132AS… · 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
- [AA48111-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120682187320240813134136.0001): Oil Filter. Aero Accessories LLC · PMA PQ1206CE · Replaces Aero AccessoriesAA48111Champion… · Jul 12, 2024
- [CF73966](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178353257420240715164040.0001): Spacer. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces 73966 · Jun 24, 2024
- [CF07A23031](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136616521920240715164043.0001): Bracket, Fuel Manifold. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces 07A23031 · Jun 24, 2024
- [CFSTD-251](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID129676558220240715164045.0001): Washer, #10 Lock, Internal Teeth. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces STD-251 · Jun 24, 2024
- [CFSTD-82](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123933662120240715164045.0001): Screw,   #10-24 X 1/2, RD HD. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces STD-82 · Jun 24, 2024
- [CFSTD-1566](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID113164712420240715164047.0001): Screw,  #10-24 X 3/4 RD HD. PRECISION AIRMOTIVE LLC · PMA PQ0111NM · Replaces STD-1566 · Jun 24, 2024
- [200F-5005](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136991488520240701174359.0001): Fuel Pump. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces Lear RomecRG9080J8A/MLycoming… · Jun 20, 2024
- [No part number](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109491024920240701174358.0001): Hartzell Engine Technologies LLC · PMA PQ1383CE · Jun 20, 2024
- [ES3018](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194884707820251216184204.0001): Clamp, Bearing Cap. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3018 · May 20, 2024
- [AM-3021](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194256093820251216184144.0001): Screw Distributor Block. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3021 · May 20, 2024
- [ES5617](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID190223284620251216184226.0001): Machining, Rotating Magnet. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M5617 · May 20, 2024
- [ES3221](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189601053820251216184228.0001): Screw. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3221 · May 20, 2024
- [AK-3975](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181109606820251216184201.0001): Coil, Ignition. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3009, M3114, M3525, K3975, K3975 · May 20, 2024
- [ES3179](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180904668720251216184210.0001): Vent Plug, Pressure. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3179 · May 20, 2024
- [AM-3006](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID178460806720251216184151.0001): Bearing. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3006 · May 20, 2024
- [AM2536](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175576430320251216184152.0001): Woodruff Key. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2536 · May 20, 2024
- [ES3040](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175045989620251216184205.0001): Coil Wedge. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3040 · May 20, 2024
- [ES917](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170587168620251216184202.0001): Impulse Coupling Spring. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M917 · May 20, 2024
- [AK-3984](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168254730520251216184200.0001): Capacitor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3183, K3984 · May 20, 2024
- [AM-2556](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164604517920251216184155.0001): Cotter Pin. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M2556 · May 20, 2024
- [ES3637K](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163564757720251216184213.0001): Contact Point Secondary. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3637 · May 20, 2024
- [AM-3217](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152412216720251216184157.0001): Wave Spring Washer. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M-3217 · May 20, 2024
- [AM-3485](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151878274520251216184156.0001): Bearing Cap, Assembly. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3485 · May 20, 2024
- [AM-3215](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151335825620251216184148.0001): Brush Assy, Distributor. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3215 · May 20, 2024
- [ES3327](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147426243320251216184226.0001): Machining, Rotating Magnet. Hartzell Engine Technologies LLC · PMA PQ1383CE · Replaces M3327 · May 20, 2024

All of them: https://openairdocs.org/engine/lycoming-tio-540-ah1a/pma.md

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