# Lycoming O-320-H2AD

- Type: Engine model (FAA registry)
- Registry code: 42131
- Manufacturer (registry): LYCOMING
- Model: O-320-H2AD
- Engine type: Reciprocating
- Power: 160 hp
- Data sheet: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Holder: Lycoming Engines
- Installed in: 83 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-o-320-h2ad

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 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 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 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 2002-12-07](https://openairdocs.org/ad/2002-12-07): Oil Filter Converter Plate Gasket or the Converter Plate Kit · Lycoming Engines HIO-360-E1AD, HIO-360-E1BD, HIO-360-F1AD and 95 more. Effective Jul 3, 2002
- [AD 98-17-11](https://openairdocs.org/ad/98-17-11): Crankshafts · Continental Motors A-65-3, A-65-8, A75-8 and 90 more. Effective Oct 19, 1998
- [AD 98-02-08](https://openairdocs.org/ad/98-02-08): Crankshaft · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 216 more. Effective Mar 30, 1998
- [AD 98-01-06](https://openairdocs.org/ad/98-01-06): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Feb 13, 1998
- [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 95-26-02](https://openairdocs.org/ad/95-26-02): Aviation Gasoline · Lycoming Engines IO-320-B1A, IO-320-B1B, IO-320-B1C and 182 more. Effective Jan 24, 1996
- [AD 93-19-04](https://openairdocs.org/ad/93-19-04): Carburetors · Continental Motors A-65-1, A-65-12, A-65-12F and 184 more. Effective Oct 18, 1993
- [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 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 80-04-03 R2](https://openairdocs.org/ad/80-04-03-R2): Hydraulic Lifter · Lycoming Engines LO-360-E1A6D, LTO-360-E1A6D, O-320-H1AD and 7 more. Effective Apr 25, 1988
- [AD 80-14-07](https://openairdocs.org/ad/80-14-07): Upper Exhaust Valve Spring Seats · Lycoming Engines LO-360-E1A6D, O-320-H1AD, O-320-H1BD and 5 more. Effective Jul 7, 1980
- [AD 79-10-03 R2](https://openairdocs.org/ad/79-10-03-R2): Engine Mounting Bracket Attaching Bolts · Lycoming Engines LO-360-E1A6D, O-320-H2AD and O-360-E1A6D. Effective Jul 1, 1980
- [AD 80-06-05](https://openairdocs.org/ad/80-06-05): Magnetos · Lycoming Engines AEIO-320-D1B, AEIO-320-D2B, AEIO-320-E1A and 254 more. Effective Mar 28, 1980
- [AD 78-12-09](https://openairdocs.org/ad/78-12-09): Crankshaft Gear Assembly · Lycoming Engines O-320-H1AD, O-320-H1BD, O-320-H2AD and 3 more. Effective Feb 20, 1979
- [AD 77-07-07](https://openairdocs.org/ad/77-07-07): Oil Level Gage · Lycoming Engines O-320-H2AD. Effective Feb 20, 1979
- [AD 77-20-07](https://openairdocs.org/ad/77-20-07): Loose Rocker Arm Retaining Studs and Hydraulic Tappets · Lycoming Engines O-320-H1AD, O-320-H1BD, O-320-H2AD and 3 more. Effective Aug 31, 1978
- [AD 78-12-08](https://openairdocs.org/ad/78-12-08): Oil Pump Body · Lycoming Engines O-320-H1AD, O-320-H1BD, O-320-H2AD and 3 more. Effective Jun 20, 1978
- [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 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 67-01-04](https://openairdocs.org/ad/67-01-04): Oil Filters · Full flow oil filter (Superior Flow STC SA401SW or 2 others). Effective Jan 2, 1967

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 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 2000-18-53](https://openairdocs.org/ad/2000-18-53) (historical): Oil Filter Converter Plate Gaskets · Textron Lycoming, AVCO AEIO-540, IO-360-A1B6D, IO-360-A1D6D and 73 more

## Information bulletins (advisory) (12)

- [SAIB NE-06-31R6](https://openairdocs.org/saib/NE-06-31R6): Engine Lubricating Oils. Issued Sep 26, 2022
- [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-06-31R5](https://openairdocs.org/saib/NE-06-31R5) (historical): Engine Lubricating Oils. Issued Oct 19, 2011
- [SAIB NE-06-31R4](https://openairdocs.org/saib/NE-06-31R4) (historical): Engine Lubricating Oils. Issued Jul 6, 2011
- [SAIB NE-08-26R3](https://openairdocs.org/saib/NE-08-26R3): Magneto/Distributor. Issued Mar 31, 2011
- [SAIB NE-06-31R3](https://openairdocs.org/saib/NE-06-31R3) (historical): Engine Lubricating Oils. Issued Jul 22, 2009
- [SAIB NE-06-31R2](https://openairdocs.org/saib/NE-06-31R2) (historical): Engine Lubricating Oils. Issued Apr 29, 2009
- [SAIB NE-08-26R1](https://openairdocs.org/saib/NE-08-26R1) (historical): Dual Magnetos. Issued Jul 8, 2008
- [SAIB NE-08-32](https://openairdocs.org/saib/NE-08-32) (historical): Propeller Governor Set Screw. Issued Jul 3, 2008

## Registered aircraft (83, first 50)

- [N106GL](https://openairdocs.org/aircraft/N106GL): [Von Koschier Angelo](https://openairdocs.org/faa-owner/VON%20KOSCHIER%20ANGELO), [Lynnfield, MA](https://openairdocs.org/faa-place/MA/Lynnfield), S/N 5127
- [N109EH](https://openairdocs.org/aircraft/N109EH): [Swatosh James K](https://openairdocs.org/faa-owner/SWATOSH%20JAMES%20K), [Stillwater, MN](https://openairdocs.org/faa-place/MN/Stillwater), built 1989, S/N 038
- [N116ES](https://openairdocs.org/aircraft/N116ES): [Olson Edward H](https://openairdocs.org/faa-owner/OLSON%20EDWARD%20H), [Elizabeth, CO](https://openairdocs.org/faa-place/CO/Elizabeth), built 2021, S/N 5
- [N1182T](https://openairdocs.org/aircraft/N1182T): [Benedict Ted A](https://openairdocs.org/faa-owner/BENEDICT%20TED%20A), [Waitsburg, WA](https://openairdocs.org/faa-place/WA/Waitsburg), built 1982, S/N 096
- [N142KS](https://openairdocs.org/aircraft/N142KS): [Soares Ken J](https://openairdocs.org/faa-owner/SOARES%20KEN%20J), [Pasco, WA](https://openairdocs.org/faa-place/WA/Pasco), built 2007, S/N 90514
- [N163CM](https://openairdocs.org/aircraft/N163CM): built 2010, S/N 22787
- [N167AM](https://openairdocs.org/aircraft/N167AM): [Vandeventer Larry D](https://openairdocs.org/faa-owner/VANDEVENTER%20LARRY%20D), [Charlotte, NC](https://openairdocs.org/faa-place/NC/Charlotte), built 1999, S/N 23163
- [N16AV](https://openairdocs.org/aircraft/N16AV): [Ranzenbach Edward](https://openairdocs.org/faa-owner/RANZENBACH%20EDWARD), [Albemarle, NC](https://openairdocs.org/faa-place/NC/Albemarle), built 2013, S/N 2
- [N1909K](https://openairdocs.org/aircraft/N1909K): [Keith Russell A](https://openairdocs.org/faa-owner/KEITH%20RUSSELL%20A), [Lewiston, ME](https://openairdocs.org/faa-place/ME/Lewiston), built 2009, S/N 91135
- [N194TT](https://openairdocs.org/aircraft/N194TT): [Cactus Aviators LLC](https://openairdocs.org/faa-owner/CACTUS%20AVIATORS%20LLC), [Cave Creek, AZ](https://openairdocs.org/faa-place/AZ/Cave%20Creek), built 2011, S/N 90235
- [N1XM](https://openairdocs.org/aircraft/N1XM): [Mardis Nick L](https://openairdocs.org/faa-owner/MARDIS%20NICK%20L), [Goddard, KS](https://openairdocs.org/faa-place/KS/Goddard), built 1975, S/N 5
- [N205DD](https://openairdocs.org/aircraft/N205DD): [Hacker Jr Delbert M](https://openairdocs.org/faa-owner/HACKER%20JR%20DELBERT%20M), [Argyle, TX](https://openairdocs.org/faa-place/TX/Argyle), built 2006, S/N 11368
- [N221RL](https://openairdocs.org/aircraft/N221RL): [Lorenz Richard A](https://openairdocs.org/faa-owner/LORENZ%20RICHARD%20A), [Ham Lake, MN](https://openairdocs.org/faa-place/MN/Ham%20Lake), built 2023, S/N 223
- [N2226K](https://openairdocs.org/aircraft/N2226K): [Rawlins Everett R](https://openairdocs.org/faa-owner/RAWLINS%20EVERETT%20R), [Pedro, OH](https://openairdocs.org/faa-place/OH/Pedro), built 2009, S/N 2741
- [N23JP](https://openairdocs.org/aircraft/N23JP): [Waller Hugh](https://openairdocs.org/faa-owner/WALLER%20HUGH), [Seaside Park, NJ](https://openairdocs.org/faa-place/NJ/Seaside%20Park), S/N STS2
- [N258AC](https://openairdocs.org/aircraft/N258AC): [Mcquack Aviation LLC](https://openairdocs.org/faa-owner/MCQUACK%20AVIATION%20LLC), [Belding, MI](https://openairdocs.org/faa-place/MI/Belding), S/N 001
- [N269JT](https://openairdocs.org/aircraft/N269JT): [Wohlers Glen Nicholas](https://openairdocs.org/faa-owner/WOHLERS%20GLEN%20NICHOLAS), [Granby, MA](https://openairdocs.org/faa-place/MA/Granby), built 2013, S/N 60381
- [N2994E](https://openairdocs.org/aircraft/N2994E): [Skyventure Aviation LLC](https://openairdocs.org/faa-owner/SKYVENTURE%20AVIATION%20LLC), [Battle Creek, MI](https://openairdocs.org/faa-place/MI/Battle%20Creek), built 1979, S/N 17271398
- [N320DT](https://openairdocs.org/aircraft/N320DT): [Carroll Michael](https://openairdocs.org/faa-owner/CARROLL%20MICHAEL), [Twinsburg, OH](https://openairdocs.org/faa-place/OH/Twinsburg), built 2004, S/N 20144
- [N321DF](https://openairdocs.org/aircraft/N321DF): [Franklin David A](https://openairdocs.org/faa-owner/FRANKLIN%20DAVID%20A), [Sealy, TX](https://openairdocs.org/faa-place/TX/Sealy), built 2001, S/N 570E
- [N3364E](https://openairdocs.org/aircraft/N3364E): [Plsr LLC](https://openairdocs.org/faa-owner/PLSR%20LLC), [Denton, TX](https://openairdocs.org/faa-place/TX/Denton), built 1978, S/N 17271519
- [N337CA](https://openairdocs.org/aircraft/N337CA): [Cendejas Christian](https://openairdocs.org/faa-owner/CENDEJAS%20CHRISTIAN), [Montclair, CA](https://openairdocs.org/faa-place/CA/Montclair), built 1979, S/N 17272213
- [N33EY](https://openairdocs.org/aircraft/N33EY): [Young Robert E](https://openairdocs.org/faa-owner/YOUNG%20ROBERT%20E), [Princeton, NC](https://openairdocs.org/faa-place/NC/Princeton), built 2016, S/N 11354
- [N3977G](https://openairdocs.org/aircraft/N3977G): [Sinor Delbert](https://openairdocs.org/faa-owner/SINOR%20DELBERT), [Ozark, MO](https://openairdocs.org/faa-place/MO/Ozark), built 2011, S/N 23877
- [N428WJ](https://openairdocs.org/aircraft/N428WJ): [Gossett Corey G](https://openairdocs.org/faa-owner/GOSSETT%20COREY%20G), [Victoria, TX](https://openairdocs.org/faa-place/TX/Victoria), S/N F8L100
- [N4603X](https://openairdocs.org/aircraft/N4603X): [Dillon Gregory A](https://openairdocs.org/faa-owner/DILLON%20GREGORY%20A), [Rancho Cucamonga, CA](https://openairdocs.org/faa-place/CA/Rancho%20Cucamonga), built 2014, S/N 90488
- [N4775D](https://openairdocs.org/aircraft/N4775D): [Hetrick-Price Willow](https://openairdocs.org/faa-owner/HETRICK-PRICE%20WILLOW), [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage), built 1979, S/N 17272357
- [N4793F](https://openairdocs.org/aircraft/N4793F): [Citizen Air LLC](https://openairdocs.org/faa-owner/CITIZEN%20AIR%20LLC), [Port Angeles, WA](https://openairdocs.org/faa-place/WA/Port%20Angeles), built 1980, S/N 17273081
- [N4808D](https://openairdocs.org/aircraft/N4808D): [Lmnb LLC](https://openairdocs.org/faa-owner/LMNB%20LLC), [Centreville, VA](https://openairdocs.org/faa-place/VA/Centreville), built 1979, S/N 17272364
- [N4920G](https://openairdocs.org/aircraft/N4920G): [Eye Candy Aviation LLC](https://openairdocs.org/faa-owner/EYE%20CANDY%20AVIATION%20LLC), [Jacksonville, FL](https://openairdocs.org/faa-place/FL/Jacksonville), built 1979, S/N 17273467
- [N495AB](https://openairdocs.org/aircraft/N495AB): [Rayburn Jason A](https://openairdocs.org/faa-owner/RAYBURN%20JASON%20A), [Gibbon, NE](https://openairdocs.org/faa-place/NE/Gibbon), built 2008, S/N 22638
- [N49MQ](https://openairdocs.org/aircraft/N49MQ): [Sgl Aviation LLC](https://openairdocs.org/faa-owner/SGL%20AVIATION%20LLC), [Fairfield, NJ](https://openairdocs.org/faa-place/NJ/Fairfield), built 1976, S/N 17267703
- [N49VC](https://openairdocs.org/aircraft/N49VC): [Cordero Victor M](https://openairdocs.org/faa-owner/CORDERO%20VICTOR%20M), [Sanford, FL](https://openairdocs.org/faa-place/FL/Sanford), built 2011, S/N 91638
- [N505XC](https://openairdocs.org/aircraft/N505XC): [Connell Billie L II](https://openairdocs.org/faa-owner/CONNELL%20BILLIE%20L%20II), [Valdez, AK](https://openairdocs.org/faa-place/AK/Valdez), built 2008, S/N XC001
- [N5113K](https://openairdocs.org/aircraft/N5113K): [Parrillo Development And Real Estate LLC](https://openairdocs.org/faa-owner/PARRILLO%20DEVELOPMENT%20AND%20REAL%20ESTATE%20LLC), [Sarasota, FL](https://openairdocs.org/faa-place/FL/Sarasota), built 1979, S/N 17272455
- [N517JP](https://openairdocs.org/aircraft/N517JP): [Jones Jerry K](https://openairdocs.org/faa-owner/JONES%20JERRY%20K), [Syracuse, UT](https://openairdocs.org/faa-place/UT/Syracuse), built 2007, S/N 001
- [N53FB](https://openairdocs.org/aircraft/N53FB): [Biniewicz Frank B](https://openairdocs.org/faa-owner/BINIEWICZ%20FRANK%20B), [Downers Grove, IL](https://openairdocs.org/faa-place/IL/Downers%20Grove), built 1979, S/N 17273291
- [N5512E](https://openairdocs.org/aircraft/N5512E): [Morcom Aviation Services Inc DBA](https://openairdocs.org/faa-owner/MORCOM%20AVIATION%20SERVICES%20INC%20DBA), [Everett, WA](https://openairdocs.org/faa-place/WA/Everett), built 1978, S/N 17271881
- [N56FA](https://openairdocs.org/aircraft/N56FA): [Silver Express Co DBA](https://openairdocs.org/faa-owner/SILVER%20EXPRESS%20CO%20DBA), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami), built 1978, S/N 172-69682
- [N594R](https://openairdocs.org/aircraft/N594R): [Sturgen Scott H](https://openairdocs.org/faa-owner/STURGEN%20SCOTT%20H), [Moira, NY](https://openairdocs.org/faa-place/NY/Moira), built 2016, S/N 82220
- [N59KT](https://openairdocs.org/aircraft/N59KT): [Lancaster Mark S](https://openairdocs.org/faa-owner/LANCASTER%20MARK%20S), [Ottumwa, IA](https://openairdocs.org/faa-place/IA/Ottumwa), built 2006, S/N 29
- [N5AK](https://openairdocs.org/aircraft/N5AK): [Hackler Tara Cole](https://openairdocs.org/faa-owner/HACKLER%20TARA%20COLE), [Bend, OR](https://openairdocs.org/faa-place/OR/Bend), built 1977, S/N 17268768
- [N6093](https://openairdocs.org/aircraft/N6093): [Dory Joseph A](https://openairdocs.org/faa-owner/DORY%20JOSEPH%20A), [Star, ID](https://openairdocs.org/faa-place/ID/Star), built 2006, S/N ED001
- [N6123A](https://openairdocs.org/aircraft/N6123A): [Thomas K Doris](https://openairdocs.org/faa-owner/THOMAS%20K%20DORIS), [Lopatcong, NJ](https://openairdocs.org/faa-place/NJ/Lopatcong), built 2006, S/N TKD25766
- [N61LT](https://openairdocs.org/aircraft/N61LT): [Airhart Michael](https://openairdocs.org/faa-owner/AIRHART%20MICHAEL), [Justin, TX](https://openairdocs.org/faa-place/TX/Justin), built 2009, S/N KA 001
- [N6387F](https://openairdocs.org/aircraft/N6387F): [Mitich Nathan](https://openairdocs.org/faa-owner/MITICH%20NATHAN), [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth), built 1980, S/N 17273214
- [N644PW](https://openairdocs.org/aircraft/N644PW): [Wooten Jerry W](https://openairdocs.org/faa-owner/WOOTEN%20JERRY%20W), [Taylor, TX](https://openairdocs.org/faa-place/TX/Taylor), built 2023, S/N 22455
- [N6607D](https://openairdocs.org/aircraft/N6607D): [Vero Technical Support Inc](https://openairdocs.org/faa-owner/VERO%20TECHNICAL%20SUPPORT%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1980, S/N 17272894
- [N6609D](https://openairdocs.org/aircraft/N6609D): [Copperhead Environmental Consulting Inc](https://openairdocs.org/faa-owner/COPPERHEAD%20ENVIRONMENTAL%20CONSULTING%20INC), [Paint Lick, KY](https://openairdocs.org/faa-place/KY/Paint%20Lick), built 1979, S/N 17272896
- [N668PT](https://openairdocs.org/aircraft/N668PT): [Cooper Michael T](https://openairdocs.org/faa-owner/COOPER%20MICHAEL%20T), [Manson, IA](https://openairdocs.org/faa-place/IA/Manson), built 2023, S/N 001

All 83: https://openairdocs.org/engine/lycoming-o-320-h2ad/aircraft.md

## NTSB investigations (18)

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 CEN23LA300](https://openairdocs.org/ntsb/CEN23LA300), Jul 12, 2023: Acrosport II (N827JA), Hertford, NC, substantial damage. Probable cause: The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and subsequent impact with vegetation.
- [NTSB WPR22LA013](https://openairdocs.org/ntsb/WPR22LA013), Oct 17, 2021: Cessna 172N (N832DC), Laurier, WA, substantial damage. Probable cause: The flight instructor’s delayed remedial action to prevent the airplane from landing long which, resulted in a runway overrun and collision with terrain.
- [NTSB WPR21LA346](https://openairdocs.org/ntsb/WPR21LA346), Sep 15, 2021: Gordon Scot A RV-6A (N3977G), Palouse, WA, substantial damage. Probable cause: The pilot's improper landing flare, which resulted in a bounced landing and subsequent nose over.
- [NTSB CEN20CA393](https://openairdocs.org/ntsb/CEN20CA393), Sep 13, 2020: Cessna 172 (N7562F), Houston, TX, substantial damage. Probable cause: The student pilot’s failure to maintain directional control upon landing.
- [NTSB CEN20CA307](https://openairdocs.org/ntsb/CEN20CA307), Jul 25, 2020: Vans Vans RV 6 (N327WB), Imperial, NE, substantial damage. Probable cause: The pilot's inadequate preflight performance planning and his decision not to utilize all available runway during high density altitude operations which led to an inflight loss of control and…
- [NTSB ERA19FA243](https://openairdocs.org/ntsb/ERA19FA243), Aug 11, 2019: Poberezny Acro Sport II (N43032), Jersey Shore, PA, substantial damage, 2 fatal. Probable cause: The pilot's decision to conduct low altitude aerobatic maneuvers which resulted in an exceedance of the airplane’s critical angle of attack while maneuvering at a low altitude, which resulted in an…
- [NTSB ERA19LA150](https://openairdocs.org/ntsb/ERA19LA150), Apr 14, 2019: Cessna 172 (N5296H), New York, NY, substantial damage. Probable cause: The pilot's decision to initiate a flight into low instrument flight rules conditions, which resulted in six missed approaches at two airports and a total loss of engine power due to fuel exhaustion.…
- [NTSB WPR19LA006](https://openairdocs.org/ntsb/WPR19LA006), Oct 9, 2018: Vans RV6 (N451JP), Cape Girardeau, MO, substantial damage, 1 fatal. Probable cause: The pilot's improper landing flare in gusting crosswind conditions, his failure to conduct a go-around, and his failure to maintain directional control, which resulted in a runway departure and…
- [NTSB ANC16CA055](https://openairdocs.org/ntsb/ANC16CA055), Jul 19, 2016: Kirbybilt Xcalibur (N505XC), Valdez, AK, substantial damage. Probable cause: The pilot's failure to maintain an adequate glide path during landing, which resulted in the airplane landing short of the airstrip, a landing gear collapse, and subsequent substantial damage to the…
- [NTSB CEN11LA014](https://openairdocs.org/ntsb/CEN11LA014), Oct 11, 2010: Drake Ronald A Acro Sport 1 (N53DB), Fowlerville, MI, substantial damage. Probable cause: The pilot's loss of control during a go-around maneuver following a bounced landing. Contributing to the accident was the pilot's limited experience in the make and model airplane.
- [NTSB ERA10LA007](https://openairdocs.org/ntsb/ERA10LA007), Oct 5, 2009: Case Richard L VAN RV-6 (N455RC), Magnolia, NC, substantial damage, 1 fatal. Probable cause: The pilot's continued visual flight into instrument meterological conditions and his subsequent failure to maintain aircraft control. Contributing to the accident was the pilot's inadequate preflight…
- [NTSB CEN09CA382](https://openairdocs.org/ntsb/CEN09CA382), Jun 24, 2009: Bakeng Deuce (N26MR), Beach City, TX, substantial damage. Probable cause: The loss of engine power due to fuel starvation resulting from a partially crimped fuel tank vent tube.
- [NTSB CHI07CA004](https://openairdocs.org/ntsb/CHI07CA004), Oct 8, 2006: Cessna 172N (N4775D), St Charles, MO, substantial damage. Probable cause: The pilot's failure to properly judge the landing flare and his inadequate recovery from the resulting bounced landing. A contributing factor was the inadvertent pilot induced oscillation (porpoise)…
- [NTSB FTW96LA010](https://openairdocs.org/ntsb/FTW96LA010), Oct 8, 1995: Cessna 172N (N738DF), Crockett, TX, substantial damage. Probable cause: failure of both magnetos to operate properly due to inadequate maintenance by other maintenance personnel. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB LAX92LA071](https://openairdocs.org/ntsb/LAX92LA071), Dec 24, 1991: Cessna 172N (N734GY), Chandler, AZ, substantial damage. Probable cause: THE FAILURE OF THE PILOT TO MAINTAIN AN ADEQUATE VISUAL LOOKOUT WHILE TAXIING THE AIRCRAFT.
- [NTSB ATL85LA162](https://openairdocs.org/ntsb/ATL85LA162), May 12, 1985: Cessna 172N (N739UD), Broxton, GA, substantial damage
- [NTSB FTW82DA247](https://openairdocs.org/ntsb/FTW82DA247), Jun 17, 1982: Cessna 172 (N4920G), Houston, TX, substantial damage
- [NTSB MIA77FA086](https://openairdocs.org/ntsb/MIA77FA086), Sep 7, 1977: Cessna 172N (N75ER), Bunnell, FL, destroyed, 1 fatal

## FAA accident and incident reports (27)

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

- [Incident 20240723008079I](https://openairdocs.org/incident/20240723008079I), Jul 23, 2024: Cessna 172N (N737HD), Hardin, IL, No damage. During flight the pilot moved the fuel tank selector valve from the both fuel tanks position to the left-hand fuel tank position. About 5 minutes after the…
- [Accident 20230712010039A](https://openairdocs.org/incident/20230712010039A), Jul 12, 2023: Andre John D ACROSPORT II (N827JA), Hertford, NC, Substantial damage. Hertford, NC: Acrosport II, drifted into a field for unknown reasons after landing on a private airstrip near [privacy data omitted]. The aircraft came to rest…
- [Accident 20211017018079A](https://openairdocs.org/incident/20211017018079A), Oct 17, 2021: Cessna 172N (N832DC), Laurier, WA, Substantial damage. The accident occurred on October 17, 2021, at approximately 1555 local time. A CFI and student pilot were practicing short/soft field landings at Avey Field…
- [Accident 20210915015769A](https://openairdocs.org/incident/20210915015769A), Sep 15, 2021: Gordon Scot A RV-6A (N3977G), Palouse, WA, Substantial damage. Instructor with student landing at unfamiliar runway touched down hard and bounced airplane resulting in proposing. The aircraft went off the side of runway…
- [Accident 20200913012429A](https://openairdocs.org/incident/20200913012429A), Sep 13, 2020: Cessna 172N (N7562F), Pearland, TX, Substantial damage. N7562F training flight with 02 pilots (01 instructor, 01 student pilot) onboard originated from Pearland regional airport (lvj), Pearland, TX, with a…
- [Accident 20200725010649A](https://openairdocs.org/incident/20200725010649A), Jul 25, 2020: Theriault Gil A VANS RV-6 (N327WB), Imperial, NE, Substantial damage. On Saturday July 25, 2020 at approximately 1147 MDT, a vans RV-6 experimental aircraft with 2 persons aboard departed a private grass runway near Imperial…
- [Accident 20190811014829A](https://openairdocs.org/incident/20190811014829A), Aug 11, 2019: Peachey Sam ACRO SPORT II (N43032), Jersey Shore, PA, Destroyed, 2 fatal. Witness interviews consistently stated the pilot and one passenger took off on runway 27 turned 180 degrees, made a high speed pass at approximately 150 feet…
- [Accident 20190414002769A](https://openairdocs.org/incident/20190414002769A), Apr 14, 2019: Cessna 172N (N5296H), Valley Stream, NY, Substantial damage. 4/14/2019: Arrived at accident scene. Based on the investigation, visibility was poor. The pilot tried to land 4 times at kfrg, then made 2 attempts at kjfk.…
- [Accident 20181009019649A](https://openairdocs.org/incident/20181009019649A), Oct 9, 2018: Lowell C Peterson RV-6A (N451JP), Cape Girardeau, MO, Substantial damage, 1 fatal. Winds were 150@16 gusting 24 knots. Runway used by accident aircraft was 20. Aircraft approached the airport from the northwest. After a normal approach and…
- [Incident 20180301001339I](https://openairdocs.org/incident/20180301001339I), Mar 1, 2018: Kent J Ashton ZIPPER (LONG EZ) (N16AV), Torrance, CA, Minor damage. N18AV was on the takeoff roll at toa on runway 29R, the pilot stated that at approximately 30 knots the nose wheel collapsed.
- [Accident 20160719012909A](https://openairdocs.org/incident/20160719012909A), Jul 19, 2016: Kirbybilt Aircraft XCALIBUR (N505XC), Valdez, AK, Substantial damage. Pilot made an approach that was too low resulting in the landing gear striking a bank and the aircraft landing on its belly.
- [Incident 20160209000709I](https://openairdocs.org/incident/20160209000709I), Feb 9, 2016: Cessna 172N (N5512E), Everett, WA, No damage. Nose landing gear tire deflated after landing.
- [Incident 20131026022839I](https://openairdocs.org/incident/20131026022839I), Oct 26, 2013: Cowan Philip RV-9A KIT (N194TT), Phoenix, AZ, No damage. Pilot lost the ability to transmit on his radio. Pilot could hear ATC. Pilot squawked 7600 and received light gun signals for landing.
- [Accident 20101011052469A](https://openairdocs.org/incident/20101011052469A), Oct 11, 2010: 2010 Drake ACRO SPORT (N53DB), Fowlerville, MI, Destroyed. Mr. Drake was attempting to land, and bounced the aircraft on the grass strip runway very hard, then applied power to go around for another approach. At the…
- [Incident 20100604035779I](https://openairdocs.org/incident/20100604035779I), Jun 4, 2010: Ronald A. D ACROSPORT I (N53DB), Water Ford, MI, Minor damage. Aircraft was on landing rollout when it suddenly veared to the right, tipped over on the propeller spinner. Propeller impacted runway and aircraft came to rest…
- [Incident 20100525005729I](https://openairdocs.org/incident/20100525005729I), May 25, 2010: Thornton J VANS RV-4 (N8081H), Dora, MO, Minor damage. During a high speed taxi test on a Private grass strip on the owner's property, the pilot taxiied through rough terrain. This caused the aircraft to nose over,…
- [Accident 20091005050399A](https://openairdocs.org/incident/20091005050399A), Oct 5, 2009: Case Richar VAN RV-6 (N455RC), Magnolia, NC, Destroyed, 1 fatal. Aircraft departed ilm at 1222 local time enroute to lhz. At 1246 aircraft contacted seymour johnson afb approach saying he was VFR at 2000'. The aircraft was…
- [Accident 20090624010299A](https://openairdocs.org/incident/20090624010299A), Jun 24, 2009: Rountr BAKENGDEUCE (N26MR), Baytown, TX, Substantial damage. (-23) According to witness statements, the aircraft departed on the second flight of the day and experienced a loss of power shortly after takeoff. The PIC…
- [Accident 20061008021139A](https://openairdocs.org/incident/20061008021139A), Oct 8, 2006: Cessna 172N (N4775D), St Charles, MO, Substantial damage. (-23) Pilot said he landed briefly, went airborne, came down and bounced back up two or three times. The last time he was airborne, he pulled back on the yoke…
- [Incident 20020510009849I](https://openairdocs.org/incident/20020510009849I), May 10, 2002: Cessna 172N (N7374E), Suches, GA, Minor damage. (-23) The pilot Mr. Spangler was demonstrating a short field landing to a student. The pilot made two approaches in an attempt to land and on the third attempt…
- [Incident 19981127042059I](https://openairdocs.org/incident/19981127042059I), Nov 27, 1998: Cessna 172N (N5512E), Everett, WA. (-5)During cruise flight the oil pressure indicator dropped to zero. Shortly after, the engine experienced a substantial power loss. A successful off airport…
- [Accident 19951008031339A](https://openairdocs.org/incident/19951008031339A), Oct 8, 1995: Cessna 172N (N738DF), Crockett, TX, Substantial damage. Lost power en route. Nosed over landing. Magneto contacts not opening. Adjusted to specs engine ran normal.
- [Accident 19911224057179A](https://openairdocs.org/incident/19911224057179A), Dec 24, 1991: Cessna 172N (N734GY), Chandler, AZ, Substantial damage. Failed to follow turn in taxiway while taxiing for takeoff. Attention was on floor adjusting intercom. Struck ditch
- [Incident 19861012085369I](https://openairdocs.org/incident/19861012085369I), Oct 12, 1986: Cessna 172N (N5512E), Everett, WA, Minor damage. During taxi attempt after taxi light went out pilot went into a ditch. Damage to the propeller blades.
- [Accident 19850512016619A](https://openairdocs.org/incident/19850512016619A), May 12, 1985: Cessna 172N (N739UD), Broxton, GA, Substantial damage. Struck unmarked powerlines on final approach to Private runway. Pilot avoided lower wires. Did not see top wires.
- [Accident 19820617024969A](https://openairdocs.org/incident/19820617024969A), Jun 17, 1982: Cessna 172N (N4920G), Houston, TX, Substantial damage. Student pilot allowed wing to hit post during ground taxi after landing.
- [Accident 19770907031829A](https://openairdocs.org/incident/19770907031829A), Sep 7, 1977: Cessna 172D (N75ER), Bunnell, FL, Destroyed. Practicing recovery frm unusual attitudes. Advised by student they were at 300FT.

## Service difficulty reports (326, newest 50)

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

- [SDR 2025FA0000627](https://openairdocs.org/sdr/2025FA0000627), Sep 2, 2025: CONTROL CABLE. BROKEN. WHILE ON APPROACH TO LAND AT KXBP BASE TO FINAL, THE CFII AND HER STUDENT HEARD A POP IN THE AIRFRAME. THEY NOTICED THE LEFT FLAP WAS "FLAPPING" A LITTLE AND DI
- [SDR 2025FA0000409](https://openairdocs.org/sdr/2025FA0000409), Jun 18, 2025: CRANKCASE. CRACKED. CASE CRACKED AT TOP BASE OF #2 CYLINDER, LEAKING OIL
- [SDR 2022FA0000327](https://openairdocs.org/sdr/2022FA0000327), Jul 1, 2022: NONE. NONE. ENGINE WAS REMOVED FROM THE AIRCRAFT AND BROUGHT TO US BECAUSE IT STARTED RUNNING RUFF. UPON DISASSEMBLY WE FOUND A PUSHROD DRIVEN THROUGH THE ROCKER ARM. WE FO
- [SDR 2021FA0000165](https://openairdocs.org/sdr/2021FA0000165), Jun 8, 2021: WINDSCREEN. SCRATCHED. VISOR SCRATCHED WINDSCREEN CAUSING CRACK AT ALONG THE SCRATCH AND DISLODGING A PIECE OF THE WINDSCREEN FROM THE AIRCRAFT.
- [SDR IKBR2020100500013](https://openairdocs.org/sdr/IKBR2020100500013), Oct 5, 2020: CYLINDER. CRACKED. DURING 50HR INSPECTION FOUND CRACKED CYLINDER FIN AND BLENDED NR 1 CYLINDER COOLING FIN, AS PER LYCOMING O-320 OHM SECTION 6 PARAGRAPH 6-26(2). ENGINE TSMOH 162
- [SDR IKBR2020100500014](https://openairdocs.org/sdr/IKBR2020100500014), Oct 5, 2020: CARBURETOR. LEAKING. DURING 50HR INSPECTION FOUND CARB P/N 10-5217 LEAKING. INSTALLED OVERHAULED CARB.
- [SDR 2020FA0000322](https://openairdocs.org/sdr/2020FA0000322), Jul 5, 2020: TENSION SPRING. BROKEN. UNUSUAL RUDDER PEDAL DEFLECTION, AIRPLANE TRIM AND CONTROL FEEL WAS NOTED. MAINTENANCE PERSONNEL DISCOVERED LT RUDDER TENSION SPRING WAS BROKEN AT THE AFT END T
- [SDR 2020FA0000040](https://openairdocs.org/sdr/2020FA0000040), Aug 8, 2019: ROCKER. BROKEN. DURING FLIGHT BOTH PUSHRODS ON THE NR 3 CYLINDER BROKE THROUGH THE ROCKER ARMS CAUSING IMMEDIATE LOSS OF POWER ON THAT CYLINDER AND ENGINE TO RUN ROUGH. AIRCRAF
- [SDR CA190717008](https://openairdocs.org/sdr/CA190717008), Jul 2, 2019: CAMSHAFT. FAILED. (CAN) ENGINE HAS 825 TT SINCE OVERHAUL (OTHER MTCE FACILITY 2018). AT 682 HRS TIS, CAMSHAFT REMOVED BY THE OTHER FACILITY DUE TO FAILURE. MARCH 2019 MAINTENANCE
- [SDR CA190717009](https://openairdocs.org/sdr/CA190717009), Jul 2, 2019: LIFTER. FAILED. (CAN) ENGINE HAS 825 TT SINCE OVERHAUL (OTHER MTCE FACILITY 2018). AT 682 HRS TIS, LIFTERS REMOVED BY THE OTHER FACILITY DUE TO FAILURE. MARCH 20019 MAINTENANCE
- [SDR CA190717006](https://openairdocs.org/sdr/CA190717006), Jul 2, 2019: ROCKER. WRONG PART. (CAN) (*SUP*) DURING ENGINE REPAIR, ROCKER FULCRUMS REMOVED FOR CLEANING AND INSPECTION. ONE FULCRUM NOTICEABLY DIFFERENT THAN OTHER 7. VISUALLY DIFFERENT, DIME
- [SDR CA190717007](https://openairdocs.org/sdr/CA190717007), Jul 2, 2019: O-RING. WRONG PART. (CAN) DURING ENGINE REPAIR, CYLINDER SHROUD TUBES REMOVED. SHROUD TUBE O RINGS PREVIOUSLY INSTALLED WERE BLACK IN COLOUR. BOTH OEM AND PMA O RINGS FOR THIS MODE
- [SDR CA190505001](https://openairdocs.org/sdr/CA190505001), May 4, 2019: TUBE. PUNCTURED. (CAN) ON RECENT NUMEROUS OCCASIONS COMPANY AIRCRAFT (CESSNA 152/172 EXPERIENCE A RASH OF TIRE DEFLATION (BOTH MAIN AND NOSE WHEEL) WHILE EITHER UPON LANDING OR 
- [SDR 2020FA0000034](https://openairdocs.org/sdr/2020FA0000034), Oct 1, 2018: MAGNETO. MALFUNCTIONED. RIGHT SIDE OF MAG FAILED CHECK. UPON INSPECTION IT WAS FOUND THAT THE LEFT SIDE WAS TIMED TO 22 AND THE RIGHT SIDE WAS TIMED TO 10 BTDC, ALSO THE RIGHT POINTS W
- [SDR 2017FA0000607](https://openairdocs.org/sdr/2017FA0000607), Nov 6, 2017: COLLAR. LOOSE. FLAPS FAILED IN FLIGHT: FOUND FLAP SWITCH'S ACTUATING COLLAR UNSCREWED FROM FLAP ACTUATING TUBE ON JACK SCREW.
- [SDR CA160114007](https://openairdocs.org/sdr/CA160114007), Jan 9, 2016: LIFTER. LOOSE. (CAN) UPON TAKEOFF, THE PILOT FELT SIGNIFICANT ENGINE VIBRATION AND REDUCTION OF POWER. AN UNSCHEDULED AND UNEVENTFUL LANDING WAS EXECUTED. ON INSPECTION, MAINT
- [SDR 2015FA0000558](https://openairdocs.org/sdr/2015FA0000558), Oct 30, 2015: BOLT. BROKEN. PISTON CONNECTING ROD BOLT BROKE CAUSING PISTON ROD TO PENATRATE ENGINE CRANKCASE CAUSING OIL DEPLETION AND ENGINE FAILURE.
- [SDR CA151008006](https://openairdocs.org/sdr/CA151008006), Oct 6, 2015: EXHAUST VALVE. FAILED. (CAN) A FLIGHT INSTRUCTOR AND STUDENT WERE PRACTISING PRECAUTIONARY LANDINGS. AFTER INSPECTING A SUITABLE FIELD, STUDENT PROCEEDED TO OVERSHOOT. AFTER FULL POWE
- [SDR FTUR20150526002](https://openairdocs.org/sdr/FTUR20150526002), May 26, 2015: ROTOR. LOOSE. REMOVED AND DISASSEMBLE MAGNETOS FOR 500 HOUR INSPECTION AND FOUND ELECTRODE ON ROTOR LOOSE AND CAM EXCESSIVELY WORN.
- [SDR CA150526001](https://openairdocs.org/sdr/CA150526001), May 22, 2015: TRANSPONDER. SMOKE. (CAN) DURING TAXI OF ACFT, SMOKE WAS NOTICED COMING OUT FROM FACE OF TRANSPONDER. ACFT WAS SHUTDOWN & MAIN BASE NOTIFIED. AN INSPECTION WAS CARRIED OUT FROM A L
- [SDR CA150417007](https://openairdocs.org/sdr/CA150417007), Apr 15, 2015: STARTER. FAILED. (CAN) BETWEEN 2014-06-20 TO 2014-12-16 STARTER WAS CHANGED 5 TIMES, 2 OF THE TIMES IT WAS A LOADER STARTER AFTER THE O/H STARTER DID NOT WORK PROPERLY. THE STAR
- [SDR CA141029011](https://openairdocs.org/sdr/CA141029011), Oct 28, 2014: CHAIN. DISCONNECTED. (CAN) AN ACCEPTANCE INSPECTION OF OUTSIDE CONTRACT WORK, WAS PERFORMED ON THIS AIRCRAFT, AFTER WORK WAS PERFORMED ON THE HORIZONTAL STAB. IT WAS FOUND THAT THE 
- [SDR 2014FA0000533](https://openairdocs.org/sdr/2014FA0000533), Sep 15, 2014: STUD. BACKED OUT. ENGINE NR 1 CYLINDER EXHAUST ROCKER ARM RETAINER STUD BACKED OUT, LOOSENED, THE CYLINDER HEAD CAUSING THE EXHAUST VALVE TO NOT OPEN.
- [SDR CA140910010](https://openairdocs.org/sdr/CA140910010), Sep 8, 2014: CYLINDER HEAD. DAMAGED. (CAN) SEPTEMBER 8, 2014, PILOT REPORTS THAT ENGINE RAN ROUGH IN DOWNWIND OF FIRST CIRCUIT. MAGS FUNCTIONED NORMALLY. NO DIFFERENCE WITH CARB HEAT. ENGINE WAS PO
- [SDR CA140827008](https://openairdocs.org/sdr/CA140827008), Aug 14, 2014: LIFTER. DAMAGED. (CAN) A/C WAS FLYING FOR 10 MINUTES WHERE THE ENGINE STARTED TO RUN ROUGH. PILOT CHECKED MAGS AND CARB HEAT (NO CHANGE). PILOT DECIDED TO MAKE PRECAUTIONARY LAN
- [SDR CA140312008](https://openairdocs.org/sdr/CA140312008), Mar 7, 2014: SELECTOR VALVE. MALFUNCTIONED. ORIGINAL EQUIPMENT SHOWS LARGE DEVIATIONS IN ACCURACY OF THE FUEL VALVE SELECTOR. WHEN INCORRECTLY POSITIONED, EG BETWEEN BOTH AND LT ENGINE WILL OPERATE AT LOW
- [SDR 2013FA0000718](https://openairdocs.org/sdr/2013FA0000718), Oct 9, 2013: BRAKE ASSY. DRAGGING. BRAKE CALIPER DRAGGING.
- [SDR 2013FA0000510](https://openairdocs.org/sdr/2013FA0000510), Sep 10, 2013: LIFTER. SPALLED. INSPECTED FILTER DURING ROUTINE OIL CHANGE, FOUND EXCESSIVE FERROUS METAL. DISCUSSION WITH O/H FACILITY CAUSED US TO REMOVE LIFTERS FOR INSPECTION. FOUND 7 OF 8
- [SDR CA130918014](https://openairdocs.org/sdr/CA130918014), Sep 6, 2013: OIL SYSTEM. OVERPRESSURED. (CAN) ENGINE FOUND TO HAVE EXTREME LOW OIL PRESSURE WITH EXTREME HIGH OIL TEMP ON INTIAL POST ENGINE INSTALLATION. ENGINE RUN-UP WITH A NEW REFURBISHED O-320-H2
- [SDR CA130304010](https://openairdocs.org/sdr/CA130304010), Feb 27, 2013: SEAT BELT. MALFUNCTIONED. (CAN) ON ROUTINE INSPECTION IT WAS FOUND THAT THE PILOT SIDE SECONDARY SEAT RESTRAINT, PN 505590-403 REEL ASSY OF SERVICE KIT SK210-174B WAS NOT LOCKING WHEN EN
- [SDR CA130115017](https://openairdocs.org/sdr/CA130115017), Jan 12, 2013: CABLE. BROKEN. (CAN) PILOT WAS ON APPROACH WHEN HE PULLED CARB HEAT. THE CONTROL CAME OUT TO A POINT WHERE HE COULD SEE IT WAS NOT ATTACHED AND BROKEN. IT WAS THEN PLACED BACK
- [SDR 2013FA0000024](https://openairdocs.org/sdr/2013FA0000024), Jan 8, 2013: SEAL. LEAKING. FRONT CRANKSHAFT OIL SEAL DETERMINED TO BE LEAKING, AND ALLOWING OIL TO DRIP INTO CABIN HEAT EXCHANGER ON MUFFLER, WHICH WAS THE SOURCE OF A SMOKE ODOR. SEAL RE
- [SDR CA121130007](https://openairdocs.org/sdr/CA121130007), Nov 27, 2012: EXHAUST VALVE. STUCK. (CAN) DURING ROUTINE ACFT INSPECTION THE NR 3 CYLINDER HAD A READING OF "0" ON A COMPRESSION LEAK DOWN CHECK. UPON FURTHER INSPECTION THE EXHAUST VALVE WAS STUC
- [SDR CA121126016](https://openairdocs.org/sdr/CA121126016), Nov 23, 2012: LIMIT SWITCH. FAILED. (CAN) UPON DAILY INSPECTION BY DISPATCH, FLAPS WOULD NOT EXTEND. NO MOVEMOVEMENT NOTED WHEN SELECTING FLAPS DOWN. ACFT TAKEN OUT OF SERVICE. MAINTENANCE PERSONA
- [SDR CA121121006](https://openairdocs.org/sdr/CA121121006), Nov 14, 2012: CYLINDER. DAMAGED. (CAN) PILOT REPORTED ROUGH RUNNING ENGINE. RETURNED FOR LANDING. ACFT RUN UP AND INSPECTED ON NOV 19, 2012. ENGINE RAN ROUGH ON RUN UP BY MAINTENANCE PERSONAL. 
- [SDR CA121018003](https://openairdocs.org/sdr/CA121018003), Oct 17, 2012: BEARING. CRACKED. (CAN) RUDDER PEDALS BEARING HALF FOUND CRACKED, PROABLE CAUSE FROM EXCESSIVE BRAKING OR RUDDER TRAVEL. REPLACED WITH NEW, NO OTHER DAMAGE FOUND UPON INSPECTION.
- [SDR CA121016005](https://openairdocs.org/sdr/CA121016005), Oct 16, 2012: FLANGE. BROKEN. (CAN) EXHAUST FLANGE BROKEN IN HALF.
- [SDR 2012FA0000430](https://openairdocs.org/sdr/2012FA0000430), Jun 22, 2012: POINTS. LOOSE. ENGINE WOULD NOT START. AFTER INSPECTING MAGNETO FOUND MISFIRE ON TEST STAND. OPENED MAGNETO FOR INSPECTION FOUND CONTACT POINT LOOSE WHERE RIVETED TO GROUND. T
- [SDR CA120529013](https://openairdocs.org/sdr/CA120529013), May 6, 2012: DISCHARGE NOZZLE. DAMAGED. (CAN) STATEMENT AS GIVEN BY CUSTOMER, THE STUDENT AND INSTRUCTOR WERE RECOVERING FROM A POWER ON STALL EXERSIZE. HE COULD NOT REDUCE THE POWER AS THE THROTTLE W
- [SDR CA120322003](https://openairdocs.org/sdr/CA120322003), Mar 21, 2012: TUBE. PUNCTURED. (CAN) NOSEWHEEL TIRE WENT FLAT DURING LANDING ROLLOUT. TUBE FOUND TO HAVE .5" CUT. TIRE INSPECTED AND NO OUTSIDE PUNCTURE OR INTERIOR OBJECT OR DEFECTS FOUND TO
- [SDR CA111223006](https://openairdocs.org/sdr/CA111223006), Dec 22, 2011: STUD. BROKEN. (CAN) ENGINE HAD A SUDDEN LOSS OF POWER. ACFT DIVERTED & LANDED SAFELY. UPON INSPECTION THE ENGINE NR 2 CYLINDER INTAKE VALVE RETAINING STUD WAS FOUND BROKEN. C
- [SDR CA111208009](https://openairdocs.org/sdr/CA111208009), Dec 7, 2011: SKIN. DAMAGED. (CAN) ON PREFIGHT WALKAROUND, PILOT DISCOVERED THE RT FLAP TOP CENTER SKIN TO BE TORN WHERE THE CONTROL ROD ATTACHES TO THE FLAP BRACKET.
- [SDR CA111201008](https://openairdocs.org/sdr/CA111201008), Dec 1, 2011: TUBE. SPLIT. (CAN) AS ACFT TAXIED OUT FOR A TRAINING FLIGHT THE RT TIRE WENT FLAT. UPON REMOVAL OF TIRE AND TUBE IT WAS FOUND THAT THE TUBE HAD A .5" LONG SPLIT IN IT. NO FO
- [SDR CA111118017](https://openairdocs.org/sdr/CA111118017), Nov 17, 2011: SKIN. DAMAGED. (CAN) DURING A PRE-FLIGHT INSPECTION, PILOT NOTICED ELEVATOR BINDING WHEN ELEVATOR FULL NOSE DOWN. CONSIDERABLE FORCE WAS NECESSARY TO FREE THE ELEVATOR. FLIGHT
- [SDR CA111117005](https://openairdocs.org/sdr/CA111117005), Nov 1, 2011: BULKHEAD. CRACKED. (CAN) CRACKS FOUND AT PROPELLER BOLT HOLES.
- [SDR CA110920011](https://openairdocs.org/sdr/CA110920011), Sep 20, 2011: ENGINE. MAKING METAL. (CAN) ON 100HR SCHEDULED INSPECTION, METAL DEBRIS FOUND IN OIL FILTER. ON FURTHER INSPECTION, SCORING FOUND ON CAMSHAFT AND LIFTER "MISSING A CHUNK (OF METAL)".
- [SDR 2011FA0000428](https://openairdocs.org/sdr/2011FA0000428), Jun 30, 2011: PUSHROD. BROKEN. CYLINDER NR 3 EXHAUST VALVE PUSH ROD BROKE, DUE TO A STUCK VALVE IN THE CLOSED POSITION. THE VALVE WAS NOT STUCK AT THE TIME OF THE INVESTIGATION. NO MARKS WERE
- [SDR 2011FA0000429](https://openairdocs.org/sdr/2011FA0000429), Jun 30, 2011: PUSHROD. BROKEN. CYLINDER NR3 EXHAUST VALVE PUSH ROD BROKEN, DUE TO A STUCK VALVE IN THE CLOSED POSITION. THE VALVE WAS NOT STUCK AT THE TIME OF THE INVESTIGATION. NO MARKS WERE
- [SDR CA110609005](https://openairdocs.org/sdr/CA110609005), Jun 9, 2011: TUBE. SPLIT. ACFT WAS PARKED ON RAMP AFTER FLIGHT AND A COUPLE HOURS LATER A PASSING PILOT NOTICED THE NOSE TIRE COMPLETELY FLAT. MX REMOVED THE TIRE AND DISCOVERED THAT THE
- [SDR CA110531009](https://openairdocs.org/sdr/CA110531009), May 31, 2011: RETAINER. FAILED. DURING A WALKAROUND THE PILOT NOTICED AN ODD NOSEWHEEL WOBBLE. UPON INSP BY THE AMO, IT WAS DISCOVERED THAT THE INNER BEARING RACE RETAINER ON 1 OF THE WHEEL HA

All 326: https://openairdocs.org/engine/lycoming-o-320-h2ad/reports.md

## STCs that may be installed (OpenAirDocs) (40)

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 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-320 Series
- [STC SE208SO](https://openairdocs.org/stc/SE208SO): Installation of ice indicator in the carburetor. LegacySTC.com. Lists O-320 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 SE2391CE](https://openairdocs.org/stc/SE2391CE): 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) on engines with ring gears that have 122 teeth. B & C Specialty Products Inc. Lists O-320 Series
- [STC SE03232CH](https://openairdocs.org/stc/SE03232CH): Installation of Engine Preheat Kit p/n TA2925-1 for 115 volt application. Hartzell Propeller Inc
- [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-320 Series
- [STC SE8776SW](https://openairdocs.org/stc/SE8776SW): Installation of coated cylinders and piston rings. Continental Motors, Inc. Lists O-320 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-320 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-320 Series
- [STC SE2901NM](https://openairdocs.org/stc/SE2901NM): Lycoming valve cover gasket. Real Gaskets Tennessee
- [STC SE00590DE](https://openairdocs.org/stc/SE00590DE): Installation of modified Lubricated Camshaft. Centri-Lube Technologies LLC
- [STC SE01930NY](https://openairdocs.org/stc/SE01930NY): Installation of Casper Labs 90 degree oil filter housing adapter. Casper Labs Inc
- [STC SE02157NY](https://openairdocs.org/stc/SE02157NY): Installation and maintenance of new roller-bearing lifters and camshaft. Air P Techno 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 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-320 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-320 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 O-320 Series
- [STC SE702NE](https://openairdocs.org/stc/SE702NE): Modification of crankcase tappet bores to accommodate large tappets. Mattituck Airbase, Inc. Lists O-320-H Series
- [STC SE3647SW](https://openairdocs.org/stc/SE3647SW): Engine replacement parts. U.S. Technical. Lists O-320 Series
- [STC SE452NE](https://openairdocs.org/stc/SE452NE): Installation and usage of 'Mobil AV 1' aviation oil. Mobil Research & Development Corp. Lists O-320 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 O-320 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-320 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-320 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-320 Series
- [STC SE1445SO](https://openairdocs.org/stc/SE1445SO): Use of Aero-blend oil additive in Teledyne (non turbocharged) aircraft engines. ProTec. Lists O-320 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-320 Series
- [STC SE508AL](https://openairdocs.org/stc/SE508AL): Addition of crankcase relief valve. Univair Aircraft Corp
- [STC SE2392SW](https://openairdocs.org/stc/SE2392SW): Conversion to fuel injection configuration equivalent IO-320-E2A. Swick Aircraft. Lists O-320 Series
- [STC SE2-7](https://openairdocs.org/stc/SE2-7): Carburetor air temperature bulb in Marvel-Schebler MA-4-5 carburetor. McElroy Lynn. Lists O-320 Series
- [STC SE5CE](https://openairdocs.org/stc/SE5CE): Prestolite ALK-5001 alternator. Larsen Industries. Lists O-320 Series

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