# Lycoming O-540-B2B5

- Type: Engine model (FAA registry)
- Registry code: 42337
- Manufacturer (registry): LYCOMING
- Model: O-540-B2B5
- Engine type: Reciprocating
- Power: 235 hp
- Data sheet: [TCDS E-295](https://openairdocs.org/tcds/E-295) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 27 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-o-540-b2b5

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 2026-17-10](https://openairdocs.org/ad/2026-17-10): Reciprocating Engine Cylinder Section · Lycoming Engines O-235, O-235-A, O-235-AP and 159 more. Effective Sep 14, 2026
- [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 2012-19-01](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 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 2009-26-12](https://openairdocs.org/ad/2009-26-12): Cylinder assemblies · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 264 more. Effective Feb 4, 2010
- [AD 2007-04-19 R1](https://openairdocs.org/ad/2007-04-19-R1): SAP cylinder assemblies · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 314 more. Effective May 7, 2007
- [AD 2006-12-07](https://openairdocs.org/ad/2006-12-07): ECi cylinder assemblies · Aerostar AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 386 more. Effective Jul 11, 2006
- [AD 2006-10-21](https://openairdocs.org/ad/2006-10-21): ECi connecting rods · Engine Components Reciprocating Engine Connecting Rods, AEIO-360-B1B, AEIO-360-B1D and 171 more. Effective Jun 22, 2006
- [AD 2005-19-11](https://openairdocs.org/ad/2005-19-11): Crankshafts · Lycoming Engines AEIO-360-A1B6, AEIO-360-A1E6, AEIO-540-D4A5 and 59 more. Effective Oct 21, 2005
- [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 99-04-04](https://openairdocs.org/ad/99-04-04): Impulse Coupling Pawl · Lycoming Engines IO-540-K1A5, IO-540-K1B5, IO-540-K1G5 and 6 more. Effective Feb 25, 1999
- [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 96-09-10](https://openairdocs.org/ad/96-09-10): Oil pump · Lycoming Engines AEIO-320-E1A, AEIO-320-E1B, AEIO-320-E2A and 334 more. Effective Jul 15, 1996
- [AD 95-07-01](https://openairdocs.org/ad/95-07-01): Connecting Rod Bolt · Lycoming Engines AEIO-360-A1E, AEIO-360-B1G6, AEIO-360-H1A and 177 more. Effective Apr 12, 1995
- [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 87-10-06 R1](https://openairdocs.org/ad/87-10-06-R1): Rocker Arm Assembly · Lycoming Engines IO-360-B4, IVO-360-A1A, O-340-A1A and 243 more. Effective Sep 1, 1989
- [AD 89-04-02](https://openairdocs.org/ad/89-04-02): Carburetors · Continental Motors O-470-11, O-470-11-CI, O-470-11B and 175 more. Effective Mar 8, 1989
- [AD 75-08-09](https://openairdocs.org/ad/75-08-09): Oil Pump Drive Shaft · Lycoming Engines AEIO-360-A1B, AEIO-360-A1B6, AEIO-360-A1C and 365 more. Effective Aug 18, 1977
- [AD 73-23-01](https://openairdocs.org/ad/73-23-01): Piston Pin Assembly · Lycoming Engines AIO-360-A1A, AIO-360-A1B, AIO-360-A2A and 215 more. Effective Jan 13, 1977
- [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 66-20-04](https://openairdocs.org/ad/66-20-04): Oil Filter Adapter Gasket · Lycoming Engines IO-320-A1A, IO-320-A2A, IO-320-B1A and 121 more. Effective Aug 27, 1966
- [AD 66-14-03](https://openairdocs.org/ad/66-14-03): Crankshaft Idler Shafts · Lycoming Engines O-540-B2B5. Effective Jul 9, 1966
- [AD 64-16-05](https://openairdocs.org/ad/64-16-05): AC Pumps · Lycoming Engines HIO-360-B1A, HIO-360-B1B, IO-320-B1A and 86 more. Effective Jul 10, 1964
- [AD 63-22-03](https://openairdocs.org/ad/63-22-03): Carburetors · Continental Motors GO-300-A, GO-300-B, GO-300-C and 143 more. Effective Dec 2, 1963
- [AD 63-14-03](https://openairdocs.org/ad/63-14-03): Oil Pump Drive Shaft · Lycoming Engines IO-540-A1A5, IO-540-B1A5, IO-540-B1B5 and 21 more. Effective Jul 6, 1963

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 2008-19-05](https://openairdocs.org/ad/2008-19-05) (historical): Parallel Valve'' reciprocating engines · Engine Components Reciprocating Engine Cylinder Assemblies, AEIO-320-D1B, AEIO-320-D2B and 262 more. Effective Oct 20, 2008
- [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 81-18-04 R2](https://openairdocs.org/ad/81-18-04-R2) (historical): Engine Oil Pump Driven Impeller and Shaft · Textron Lycoming, AVCO AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 376 more. Effective Jun 7, 1982

## 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-13-06](https://openairdocs.org/saib/NE-13-06): Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320, 360, and 540 Series Engines. Issued Nov 21, 2012
- [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 (27)

- [N132CL](https://openairdocs.org/aircraft/N132CL): [Malecha Curtis E](https://openairdocs.org/faa-owner/MALECHA%20CURTIS%20E), [Fergus Falls, MN](https://openairdocs.org/faa-place/MN/Fergus%20Falls), built 2011, S/N 019-020-030-672
- [N2399U](https://openairdocs.org/aircraft/N2399U): [Chilhowee Soaring Association Inc](https://openairdocs.org/faa-owner/CHILHOWEE%20SOARING%20ASSOCIATION%20INC), [Benton, TN](https://openairdocs.org/faa-place/TN/Benton), built 1972, S/N 25-5429
- [N274LC](https://openairdocs.org/aircraft/N274LC): [Huismann Lucas A](https://openairdocs.org/faa-owner/HUISMANN%20LUCAS%20A), [Whitehall, WI](https://openairdocs.org/faa-place/WI/Whitehall), built 2023, S/N 68
- [N35FA](https://openairdocs.org/aircraft/N35FA): [St Louis Soaring Association](https://openairdocs.org/faa-owner/ST%20LOUIS%20SOARING%20ASSOCIATION), [Saint Louis, MO](https://openairdocs.org/faa-place/MO/Saint%20Louis), built 1964, S/N 253291
- [N4114K](https://openairdocs.org/aircraft/N4114K): [North Florida Soaring Society Inc](https://openairdocs.org/faa-owner/NORTH%20FLORIDA%20SOARING%20SOCIETY%20INC), [Jacksonville, FL](https://openairdocs.org/faa-place/FL/Jacksonville), built 1966, S/N 25-4043
- [N433RV](https://openairdocs.org/aircraft/N433RV): [Clawson Duane W](https://openairdocs.org/faa-owner/CLAWSON%20DUANE%20W), [Enon Valley, PA](https://openairdocs.org/faa-place/PA/Enon%20Valley), built 2012, S/N 001
- [N4428P](https://openairdocs.org/aircraft/N4428P): [Silver Creek Glider Club](https://openairdocs.org/faa-owner/SILVER%20CREEK%20GLIDER%20CLUB), [New Douglas, IL](https://openairdocs.org/faa-place/IL/New%20Douglas), built 1964, S/N 25-2719
- [N4468Y](https://openairdocs.org/aircraft/N4468Y): [Begrow Adroaldo Dorivaldo](https://openairdocs.org/faa-owner/BEGROW%20ADROALDO%20DORIVALDO), [Gulf Shores, AL](https://openairdocs.org/faa-place/AL/Gulf%20Shores), built 1966, S/N 25-4120
- [N4495Y](https://openairdocs.org/aircraft/N4495Y): [Merlin Soaring Association Inc](https://openairdocs.org/faa-owner/MERLIN%20SOARING%20ASSOCIATION%20INC), [Amelia Court House, VA](https://openairdocs.org/faa-place/VA/Amelia%20Court%20House), built 1966, S/N 25-4162
- [N4513Y](https://openairdocs.org/aircraft/N4513Y): [Albertson James M](https://openairdocs.org/faa-owner/ALBERTSON%20JAMES%20M), [Slocomb, AL](https://openairdocs.org/faa-place/AL/Slocomb), built 1966, S/N 25-4019
- [N484ML](https://openairdocs.org/aircraft/N484ML): [Loree Steve J](https://openairdocs.org/faa-owner/LOREE%20STEVE%20J), [Placerville, CA](https://openairdocs.org/faa-place/CA/Placerville), built 2007, S/N ML001
- [N628P](https://openairdocs.org/aircraft/N628P): [Southern Biplanes Inc](https://openairdocs.org/faa-owner/SOUTHERN%20BIPLANES%20INC), [Cartersville, GA](https://openairdocs.org/faa-place/GA/Cartersville), built 2010, S/N 2009
- [N6462Z](https://openairdocs.org/aircraft/N6462Z): [Minden Soaring Club Inc](https://openairdocs.org/faa-owner/MINDEN%20SOARING%20CLUB%20INC), [Minden, NV](https://openairdocs.org/faa-place/NV/Minden), built 1962, S/N 25-661
- [N6518Z](https://openairdocs.org/aircraft/N6518Z): [Simmons Aviation Services LLC](https://openairdocs.org/faa-owner/SIMMONS%20AVIATION%20SERVICES%20LLC), [Pawcatuck, CT](https://openairdocs.org/faa-place/CT/Pawcatuck), built 1963, S/N 25-2046
- [N6523Z](https://openairdocs.org/aircraft/N6523Z): [Windy City Soaring Association](https://openairdocs.org/faa-owner/WINDY%20CITY%20SOARING%20ASSOCIATION), [Hinckley, IL](https://openairdocs.org/faa-place/IL/Hinckley), built 1962, S/N 25-2052
- [N6719Z](https://openairdocs.org/aircraft/N6719Z): [Journeys Aviation Inc](https://openairdocs.org/faa-owner/JOURNEYS%20AVIATION%20INC), [Boulder, CO](https://openairdocs.org/faa-place/CO/Boulder), built 1963, S/N 25-2328
- [N6862Z](https://openairdocs.org/aircraft/N6862Z): [Simmons Aviation Services LLC](https://openairdocs.org/faa-owner/SIMMONS%20AVIATION%20SERVICES%20LLC), [Pawcatuck, CT](https://openairdocs.org/faa-place/CT/Pawcatuck), built 1963, S/N 25-2548
- [N6868Z](https://openairdocs.org/aircraft/N6868Z): [C-Fleet LLC](https://openairdocs.org/faa-owner/C-FLEET%20LLC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), built 1963, S/N 25-2574
- [N699RB](https://openairdocs.org/aircraft/N699RB): [Maoz Eyal Trustee](https://openairdocs.org/faa-owner/MAOZ%20EYAL%20TRUSTEE), [New York, NY](https://openairdocs.org/faa-place/NY/New%20York), built 1963, S/N 28-10048
- [N7282Z](https://openairdocs.org/aircraft/N7282Z): [Simmons Aviation Services LLC](https://openairdocs.org/faa-owner/SIMMONS%20AVIATION%20SERVICES%20LLC), [Pawcatuck, CT](https://openairdocs.org/faa-place/CT/Pawcatuck), built 1965, S/N 25-3222
- [N7366Z](https://openairdocs.org/aircraft/N7366Z): [Aerial Banners North Inc](https://openairdocs.org/faa-owner/AERIAL%20BANNERS%20NORTH%20INC), [Pembroke Pines, FL](https://openairdocs.org/faa-place/FL/Pembroke%20Pines), built 1965, S/N 25-3320
- [N7663Z](https://openairdocs.org/aircraft/N7663Z): [Gieseke Joe](https://openairdocs.org/faa-owner/GIESEKE%20JOE), [Tuttle, OK](https://openairdocs.org/faa-place/OK/Tuttle), built 1965, S/N 25-3807
- [N7714Z](https://openairdocs.org/aircraft/N7714Z): [Simmons Aviation Services LLC](https://openairdocs.org/faa-owner/SIMMONS%20AVIATION%20SERVICES%20LLC), [Pawcatuck, CT](https://openairdocs.org/faa-place/CT/Pawcatuck), built 1966, S/N 25-3877
- [N8279H](https://openairdocs.org/aircraft/N8279H): [Chilhowee Soaring Association Inc](https://openairdocs.org/faa-owner/CHILHOWEE%20SOARING%20ASSOCIATION%20INC), [Benton, TN](https://openairdocs.org/faa-place/TN/Benton), built 1965, S/N 1148
- [N8403V](https://openairdocs.org/aircraft/N8403V): [Donica L H](https://openairdocs.org/faa-owner/DONICA%20L%20H), [Marana, AZ](https://openairdocs.org/faa-place/AZ/Marana), built 1970, S/N 1603
- [N8588W](https://openairdocs.org/aircraft/N8588W): [Andree Alfred L](https://openairdocs.org/faa-owner/ANDREE%20ALFRED%20L), [Homer, AK](https://openairdocs.org/faa-place/AK/Homer), built 1963, S/N 28-10100
- [N8846L](https://openairdocs.org/aircraft/N8846L): [N8846l LLC](https://openairdocs.org/faa-owner/N8846L%20LLC), [Homestead, FL](https://openairdocs.org/faa-place/FL/Homestead), built 1971, S/N 25-5357

## NTSB investigations (12)

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 CEN24LA043](https://openairdocs.org/ntsb/CEN24LA043), Nov 21, 2023: Bearhawk Four (N274LC), Eau Claire, WI, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing.
- [NTSB ERA20CA317](https://openairdocs.org/ntsb/ERA20CA317), Sep 10, 2020: Piper PA25 (N7366Z), Destin, FL, substantial damage. Probable cause: The pilot's failure to manage the available fuel supply which resulted in fuel starvation and a total loss of engine power.
- [NTSB GAA17CA371](https://openairdocs.org/ntsb/GAA17CA371), Jun 24, 2017: Aero Commander Callair A 9 (N7662V), Morgan, UT, substantial damage. Probable cause: The pilot’s failure to see and avoid transmission wires.
- [NTSB CHI95LA172](https://openairdocs.org/ntsb/CHI95LA172), Jun 3, 1995: Piper PA-25-235 (N4428P), Dawson, MN, substantial damage. Probable cause: the pilot's selection of unsuitable terrain for takeoff, and his failure to maintain directional control of the airplane on takeoff. A factor in the accident was the tall grass.
- [NTSB CHI94LA006](https://openairdocs.org/ntsb/CHI94LA006), Oct 5, 1993: Piper PA-25-235 (N6862Z), Frankfort, MI, substantial damage. Probable cause: the pilot's failure to perform refueling.
- [NTSB MKC89LA137](https://openairdocs.org/ntsb/MKC89LA137), Jun 18, 1989: Piper PA-25-235 (N8846L), Clayton, KS, substantial damage. Probable cause: THE FAILURE OF THE PILOT TO COMPENSATE FOR THE UNFAVORABLE WIND CONDITIONS.
- [NTSB CHI86FEM14](https://openairdocs.org/ntsb/CHI86FEM14), Aug 18, 1986: Piper PA-25-235 (N6862Z), White Pigeon, MI, substantial damage
- [NTSB MKC74FCA12](https://openairdocs.org/ntsb/MKC74FCA12-140983), Oct 9, 1974: Aero Comdr A9B (N7662V), Caruthersville, MO, substantial damage
- [NTSB MKC75FTG13](https://openairdocs.org/ntsb/MKC75FTG13), Jul 3, 1974: Piper PA-25 (N6719Z), Kenmare, ND, substantial damage
- [NTSB SEA68D0046](https://openairdocs.org/ntsb/SEA68D0046-201144), Jun 2, 1967: Callair A-9 (N8279H), Ulm, MT, substantial damage
- [NTSB FTW66F0342](https://openairdocs.org/ntsb/FTW66F0342), Oct 23, 1965: Piper PA-25 (N6523Z), Terrell, TX, destroyed
- [NTSB CHI65F0097](https://openairdocs.org/ntsb/CHI65F0097), Apr 11, 1965: Piper PA-25 (N7366Z), Berlin, KY, substantial damage

## FAA accident and incident reports (11)

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 20231121017059A](https://openairdocs.org/incident/20231121017059A), Nov 21, 2023: Huismann Lucas A BEARHAWK 4 PLACE (N274LC), Eau Claire, WI, Substantial damage. On 11/21/2023 at approximately 1600 UTC, the accident aircraft was cleared to land on rwy 32 at Chippewa Valley Regional Airport (keau). Immediately after…
- [Accident 20200910013939A](https://openairdocs.org/incident/20200910013939A), Sep 10, 2020: Piper PA-25-235 (N7366Z), Okaloosa Island, FL, Substantial damage. While in a climb to 1000 ft., towing a banner, the aircraft's engine quit. The pilot managed to land the aircraft in the gulf of Mexico just off of the beach…
- [Accident 20170624024519A](https://openairdocs.org/incident/20170624024519A), Jun 24, 2017: Aero Commander CALLAIR A-9 (N7662V), Mountain Green, UT, Substantial damage. Pilot used interstate 84 (Utah) while navigating to airport. Struck high power electric lines which traversed a canyon above the highway. Lines were not…
- [Incident 20130830019141I](https://openairdocs.org/incident/20130830019141I), Aug 30, 2013: Callair A-9 (N8279H), Benton, TN, Minor damage. The PIC completed an extensive pre-flight inspection and engine run-up. Departure was conducted without a glider in tow as is customary for initial check of…
- [Incident 19980111003289I](https://openairdocs.org/incident/19980111003289I), Jan 11, 1998: Piper PA25 (N6462Z), Beasley, TX, Minor damage. Narrative: aircraft began drifting to the right during roll-out. Applied left rudder with-out effect. Applied more left rudder and left aileron with-out…
- [Accident 19950603018979A](https://openairdocs.org/incident/19950603018979A), Jun 3, 1995: Piper PA25235 (N4428P), Dawson, MN, Substantial damage. Lost directional control on takeoff due to tall grass. Runway closed due broken asphalt. Collapsed landing gear. (-23) the aircraft was moved from the accident…
- [Accident 19931005038559A](https://openairdocs.org/incident/19931005038559A), Oct 5, 1993: Piper PA25235 (N6862Z), Frankfort, MI, Substantial damage. Ran out of fuel on landing approach after a glider tow. Landed short of runway.
- [Accident 19890618016119A](https://openairdocs.org/incident/19890618016119A), Jun 18, 1989: Piper PA25235 (N8846L), Clayon, KS, Substantial damage. Struck the ground during a spray run. Believed caused by downdraft. Dust devils were in the area.
- [Accident 19860818040649A](https://openairdocs.org/incident/19860818040649A), Aug 18, 1986: Piper PA25235 (N6862Z), White Pigeon, MI, Substantial damage. The aircraft stalled into a corn field during takeoff. Shifting winds and turbulence factors.
- [Accident 19741009035899A](https://openairdocs.org/incident/19741009035899A), Oct 9, 1974: Airpts A9B (N7662V), Caruthersville, MO, Substantial damage. Camshaft failure. Lndd in soybean fld.
- [Accident 19740703034119A](https://openairdocs.org/incident/19740703034119A), Jul 3, 1974: Piper PA25235 (N6719Z), Kenmare, ND, Substantial damage. Struck post with wing during swath run. Dumped load and returned to arpt.

## Service difficulty reports (9)

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

- [SDR CA190211006](https://openairdocs.org/sdr/CA190211006), Feb 7, 2019: CAPACITOR. FAILED. (CAN) MAGNETO RECEIVED FOR OVERHAUL. DEFECT FOUND DURING DISASSEMBLY. MOUNTING TAB SPOT WELDS DETACHED FROM CAPACITOR HOUSING.
- [SDR 2006FA0000630](https://openairdocs.org/sdr/2006FA0000630), Jun 12, 2006: CONTACT. BROKEN. MAG FAILED IN FLIGHT, UPON INSPECTION POINTS WERE FOUND TO BE BROKEN WITH 44 HOURS TT ON THE POINTS. THE SPRING PORTION WAS BROKEN DUE TO A DEFECT IN THE STAMPI
- [SDR CA060427002](https://openairdocs.org/sdr/CA060427002), Apr 13, 2006: CONNECTING ROD. GALLED. (CAN) CONNECTING RODS REMOVED FROM ENGINE AT 192.0HRS DUE TO PROP STRIKE. RODS INSPECTED IAW SB439A, AND ALL 6 RODS HAD FRETTING AND GALLING ON THE CONNECTING R
- [SDR 2003FA0000602](https://openairdocs.org/sdr/2003FA0000602), May 20, 2003: IMPULSE COUPLING. FAILED. FAILURE OF SLICK 6351, S/N 00120999, MAGNETO. INSTALLATION DATE 7/15/01; TIME IN SERVICE SINCE NEW - 442 HRS. INSTALLED ON PIPER PAWNEE PA-25-235 AIRCRAFT; LYC 
- [SDR 20000814SH003](https://openairdocs.org/sdr/20000814SH003), Aug 14, 2000: GASKET. INADEQUATE. THIS AIRCRAFT HAS THE SAME AIR FILTER AND LANDING LIGHT ASSY AS THE PA28140 150-150 WITH BAD GASKETS. SUBMITTER FEELS AD96-10-01-R1 SHOULD APPLY. (X)
- [SDR AU971465](https://openairdocs.org/sdr/AU971465), Nov 24, 1997: TRIM TAB. CRACKED. (AUS) STABILATOR TRIM TABS CRACKED AT INBOARD END ADJACENT TO THE ACTUATING ARM ATTACHMENT. CRACKING EVIDENT IN SKIN PANELS AND INBOARD RIB.
- [SDR 96ZZZX6098](https://openairdocs.org/sdr/96ZZZX6098), Oct 24, 1996: ROD BOLT. STRIPPED. ROD BOLT APPEARS TO BE TOO SOFT. THREADS STRIPPED CAUSING NR 4 CONNECTING ROD CAP TO COME LOOSE MAKING CONTACT WITH CASE AND NR 3 PISTON. THIS CAUSED MAJOR DAMA
- [SDR AU960656](https://openairdocs.org/sdr/AU960656), May 13, 1996: CONDENSER. FAULTY. (AUS) MAGNETO CONDENSER SEPARATED FROM MOUNTING LUG - PIGTAIL BROKEN - POINTS BURNT
- [SDR AU960437](https://openairdocs.org/sdr/AU960437), Apr 2, 1996: WHEEL. BROKEN. (AUS) MAIN WHEEL FLANGE FAILED AND BROKE AWAY DURING TYRE INFLATION - DYE PENETRANT CHECK HAD FOUND NO INDICATION OF CRACKING - PIECEOF FLANGE BROKEN AWAY WAS A

## STCs that may be installed (OpenAirDocs) (44)

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 SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC
- [STC SE00825WI](https://openairdocs.org/stc/SE00825WI): Installation of Specialty Products Spin-on oil filter on Lycoming Engines. B & C Specialty Products Inc
- [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 O-540 Series
- [STC SE208SO](https://openairdocs.org/stc/SE208SO): Installation of ice indicator in the carburetor. LegacySTC.com. Lists O-540 Series
- [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 SE2388CE](https://openairdocs.org/stc/SE2388CE): Installation of B&C Speciality Products lightweight (10.2) pounds) engine starter, part number BC-315-100-1 (12 volts) or part number BC-315-100-3 (24 volts). B & C Specialty Products Inc. Lists O-540 Series
- [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 SE4408SW](https://openairdocs.org/stc/SE4408SW): Miscellaneous engine cylinder replacement parts. Continental Motors, Inc. Lists O-540 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists O-540 Series
- [STC SE00218NY](https://openairdocs.org/stc/SE00218NY): Replacement of Lycoming starter with SKY-TEC 12 volt starter installed. Hartzell Engine Technologies, LLC. Lists O-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 SE00357NY](https://openairdocs.org/stc/SE00357NY): Replacement of Lycoming starter with SKY-TEC 24-volt starter installed. Hartzell Engine Technologies, LLC. Lists O-540 Series
- [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE00768CH](https://openairdocs.org/stc/SE00768CH): Replace Slick 6000, 6100, 6200 and 6300 series magnetos and TCM/Bendix S6-20, S6-200 and S6-1200 series magnetos with the Champion Limited Authority Spark Advance Regulator (LASARTM) ignition system. Champion Aerospace LLC
- [STC SE922GL](https://openairdocs.org/stc/SE922GL): Installation of a Shadin Company fuel flow transducer. Shadin Avionics
- [STC SE7734SW](https://openairdocs.org/stc/SE7734SW): Modification of engine for operation with ethanol fuel. Shauck Dr Maxwell E Jr
- [STC SE01943CH](https://openairdocs.org/stc/SE01943CH): Add the following approved fuels: unleaded automotive gasoline 87 minimum antiknock index, per ASTM Specification D-439 or D-4814 of any volatility class, A through E, or 82UL AVGAS per ASTM D-6227. Experimental Aircraft Association Inc
- [STC SE956GL](https://openairdocs.org/stc/SE956GL): Superseded by STC SE01943CH. Add approved fuel: unleaded automotive gasoline, 87 minimum antiknock index. EAA Aviation Foundation
- [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 SE1433GL](https://openairdocs.org/stc/SE1433GL): Convert Lycoming aircraft engine Model O-540-B2B5 or O-540-B2C5 rated at 235 hp at 2575 rpm to a O-540-B2B5-C-AlD5 or O-540-B2C5-C-A1D5 rated at 250 hp at 2575 rpm maximum. Kron Howard
- [STC SE00890LA](https://openairdocs.org/stc/SE00890LA): Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models. Nickson's Machine Shop Inc. Lists O-540 Series
- [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 O-540 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 O-540 Series
- [STC SE8023SW](https://openairdocs.org/stc/SE8023SW): Installation and usage of AEROSHELL. Shell Development Co. Lists O-540 Series
- [STC SE741NE](https://openairdocs.org/stc/SE741NE): Installation of 'Auto-Vac-4' primary vacuum system. Raymond Ives
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists O-540 Series
- [STC SE318NE](https://openairdocs.org/stc/SE318NE): Installation of 'auto-vac-2' auxiliary instrument vacuum system. Raymond Ives
- [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 O-540 Series
- [STC SE5924SW](https://openairdocs.org/stc/SE5924SW): Installation of stainless steel replacement exhaust studs on AVCO engines. Perrigo & Steele Aircraft Engr Company. Lists O-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 O-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 O-540 Series
- [STC SE1909CE](https://openairdocs.org/stc/SE1909CE): Operation on unleaded and leaded automotive gasoline. Petersen Aviation Inc
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists O-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 O-540 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 O-540 Series
- [STC SA01436DE](https://openairdocs.org/stc/SA01436DE) (historical): Installation of Firewall Forward Technologies, LLC modified camshaft. Centri-Lube Technologies LLC

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