# Lycoming O-320-EXP

- Type: Engine model (FAA registry)
- Registry code: 42406
- Manufacturer (registry): LYCOMING
- Model: O-320-EXP
- Engine type: Reciprocating
- Power: 160 hp
- Installed in: 11 registered aircraft
- Page: https://openairdocs.org/engine/lycoming-o-320-exp

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.

None matched.

## Registered aircraft (11)

- [N240T](https://openairdocs.org/aircraft/N240T): [Boyd Edward Lee](https://openairdocs.org/faa-owner/BOYD%20EDWARD%20LEE), [Apison, TN](https://openairdocs.org/faa-place/TN/Apison), built 2012, S/N 101
- [N282RV](https://openairdocs.org/aircraft/N282RV): [Heidinger Jeremy L](https://openairdocs.org/faa-owner/HEIDINGER%20JEREMY%20L), [Madison, OH](https://openairdocs.org/faa-place/OH/Madison), built 2016, S/N 81892
- [N330RV](https://openairdocs.org/aircraft/N330RV): [Sims David L](https://openairdocs.org/faa-owner/SIMS%20DAVID%20L), [Mc Alpin, FL](https://openairdocs.org/faa-place/FL/Mc%20Alpin), built 2017, S/N 11504
- [N377S](https://openairdocs.org/aircraft/N377S): [Bishop Kenneth P](https://openairdocs.org/faa-owner/BISHOP%20KENNETH%20P), [Griffin, GA](https://openairdocs.org/faa-place/GA/Griffin), built 2014, S/N 264
- [N39SC](https://openairdocs.org/aircraft/N39SC): [Baletskiy Aleksandr](https://openairdocs.org/faa-owner/BALETSKIY%20ALEKSANDR), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 2016, S/N 003
- [N401MS](https://openairdocs.org/aircraft/N401MS): [Martine Zachary](https://openairdocs.org/faa-owner/MARTINE%20ZACHARY), [Carterville, IL](https://openairdocs.org/faa-place/IL/Carterville), built 2015, S/N 085
- [N4816B](https://openairdocs.org/aircraft/N4816B): [Kuzina Ron S](https://openairdocs.org/faa-owner/KUZINA%20RON%20S), [Wasilla, AK](https://openairdocs.org/faa-place/AK/Wasilla), built 2016, S/N 1001
- [N527JT](https://openairdocs.org/aircraft/N527JT): [Bald Eagle Aviation LLC](https://openairdocs.org/faa-owner/BALD%20EAGLE%20AVIATION%20LLC), [Cotopaxi, CO](https://openairdocs.org/faa-place/CO/Cotopaxi), built 1993, S/N 20468
- [N721PK](https://openairdocs.org/aircraft/N721PK): [Macdonald Patrick D](https://openairdocs.org/faa-owner/MACDONALD%20PATRICK%20D), [Louisville, KY](https://openairdocs.org/faa-place/KY/Louisville), built 2006, S/N 70804
- [N911WH](https://openairdocs.org/aircraft/N911WH): [Homsley Jerry](https://openairdocs.org/faa-owner/HOMSLEY%20JERRY), [Cabot, AR](https://openairdocs.org/faa-place/AR/Cabot), built 2011, S/N 90158
- [N932WF](https://openairdocs.org/aircraft/N932WF): [Bush Dale L](https://openairdocs.org/faa-owner/BUSH%20DALE%20L), [Medford, OR](https://openairdocs.org/faa-place/OR/Medford), built 2015, S/N 90196

## NTSB investigations (1)

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 CEN26LA074](https://openairdocs.org/ntsb/CEN26LA074), Dec 31, 2025: Pitts S1S (N401MS), Carbondale, IL, substantial damage. Probable cause: A loss of engine power due to fuel starvation resulting from an uncommanded change to the fuel servo mixture position due to the improperly installed mixture cable.

## FAA accident and incident reports (1)

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 20251231020229A](https://openairdocs.org/incident/20251231020229A), Dec 31, 2025: Michael W Stewart PITTS S1 (N401MS), Murphysboro, IL, Destroyed. After a low pass on runway 18, the aircraft climbed to traffic pattern altitude and leveled off. Shortly after leveling off, the clamp on the mixture cable…

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