# N108Q: Grumman TBM-3

- Status: Valid registration
- Airframe: [Grumman TBM-3](https://openairdocs.org/model/grumman-tbm-3) (registry code 3950308, 2 seats)
- Engine: [Wright R-2600-20](https://openairdocs.org/engine/wright-r-2600-20) (registry code 67123)
- Data sheets: [TCDS LTC-8](https://openairdocs.org/tcds/LTC-8) (Air Trading Corporation) (OpenAirDocs)
- Serial number: 91188
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, exhibition
- Airworthiness date: April 10, 2015
- Certificate issued: April 2, 2025
- Expires: April 30, 2032
- Mode S code: A023CA
- Registered owner: [Castle Air Museum](https://openairdocs.org/faa-owner/CASTLE%20AIR%20MUSEUM)
- Location: [Atwater, CA](https://openairdocs.org/faa-place/CA/Atwater)
- Owner type: Corporation
- Owner's area on the map: 37.3061° N, 120.6560° W: Placed by OpenAirDocs at the center of ZIP code 95301, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=108Q
- Page: https://openairdocs.org/aircraft/N108Q

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 2 in force

### Matched by airframe (Grumman TBM-3)

- [AD 64-26-03](https://openairdocs.org/ad/64-26-03): Elevator Push Rod Assembly · Air Trading TBF-1 (Navy), TBF-1C (Navy), TBM-1 (Navy) and 3 more. Effective Dec 25, 1964
- [AD 58-19-01](https://openairdocs.org/ad/58-19-01): Fire Resistant Hose · Air Trading TBF-1 (Navy), TBF-1C (Navy), TBM-1 (Navy) and 3 more

### Matched by engine (Wright R-2600-20)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations (2)

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 NYC75DFA41](https://openairdocs.org/ntsb/NYC75DFA41), Jun 16, 1975: Grumman TBM (N108Q), Massena, NY, substantial damage
- [NTSB FTW72DPJ24](https://openairdocs.org/ntsb/FTW72DPJ24), Nov 14, 1971: Grumman TBM-3U (N108Q), Cushing, OK, substantial damage

## FAA accident and incident reports (2)

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 20210417001269I](https://openairdocs.org/incident/20210417001269I), Apr 17, 2021: Grumman TBM-3 (N108Q), Cocoa Beach, FL, Minor damage. The acft made a gear up forced ldg in the atlantic ocean adjacent to a Beach at Patrick space force base (kcof) after the PIC declared an emergency to the…
- [Accident 19750616018639A](https://openairdocs.org/incident/19750616018639A), Jun 16, 1975: Gruman TBM3AIRTRD (N108Q), Massena, NY, Substantial damage. During climb out engine failed acft lndd in swamp wheels up.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Grumman TBM-3)

- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc
- [STC ST334CH](https://openairdocs.org/stc/ST334CH): Installation of Superflite 102 fabric. Aviation Products Systems Inc
- [STC SA8075SW](https://openairdocs.org/stc/SA8075SW): Installation of fiberglass covering. (M-62 SERIES PT-19) (G-73 SCHWEIZER). Razorback Fabrics Inc
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc

## Related

- Other Grumman TBM-3 aircraft: https://openairdocs.org/model/grumman-tbm-3/aircraft.md
- The Wright R-2600-20 engine: https://openairdocs.org/engine/wright-r-2600-20.md

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