# N4235T: 1962 Lockheed SP-2H, registration cancelled 2009-05-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 29, 2009
- Status when cancelled: Triennial form not returned
- Airframe: [Lockheed SP-2H](https://openairdocs.org/model/lockheed-sp-2h) (registry code 5269601)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 150282
- Year built: 1962
- Type of aircraft: Fixed wing multi engine
- Airworthiness: Restricted, forest
- Airworthiness date: May 3, 1984
- Certificate issued: September 13, 1993
- Last registry action: April 21, 2009
- Mode S code: A509DD
- Owner when cancelled: [Neptune Aviation Services Inc](https://openairdocs.org/faa-owner/NEPTUNE%20AVIATION%20SERVICES%20INC)
- Location: [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula)
- Owner type: Corporation
- Owner's area on the map: 46.9621° N, 114.0922° W: Placed by OpenAirDocs at the center of ZIP code 59808, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4235T
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4235T
- Page: https://openairdocs.org/deregistered/N4235T-2009-05-29

From the FAA registry file of November 3, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Lockheed SP-2H: https://openairdocs.org/model/lockheed-sp-2h.md

## Service difficulty reports (2)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 20000907SH012](https://openairdocs.org/sdr/20000907SH012), Aug 25, 2000: BOLT. MISSING. FLIGHT CREW ATTEMPTED TO EXTEND LANDING GEAR NORMALLY. NOSE GEAR DID NOT INDICATE DOWN AND LOCK. GEAR CYCLED AND INVESTIGATED, FOUND JURY STRUT ATTACHING BOLT M
- [SDR 99ZZZX3818](https://openairdocs.org/sdr/99ZZZX3818), Sep 23, 1999: ENGINE. CONTAMINATED. FLIGHT CREW WAS INFORMED BY LOCAL FUEL DISTRIBUTORS THAT ALL AIRCRAFT (100 CL) NEEDED TO BE TESTED IN AIRCRAFT FOR POSSIBLE FUEL CONTAMINATION WITH JET FUEL. AI

## 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 SEA08GA194](https://openairdocs.org/ntsb/SEA08GA194), Sep 2, 2008: Lockheed P2V-7 (N4235T), Reno, NV, destroyed, 3 fatal. Probable cause: The failure of the flight crew to maintain airspeed above in-flight minimum control speed (Vmca) after losing power in the left jet engine during initial climb after takeoff. Contributing to the…

## FAA accident and incident reports (3)

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 20080901845099I](https://openairdocs.org/incident/20080901845099I), Sep 1, 2008: Lkheed SP2H (N4235T), Reno, NV, Destroyed, 3 fatal. (-23) On September 1, 2008 at approximately 6:10PM, N4235T departed Reno-Stead airport, 4SD, to perform an air tanker fire fighting operation. Upon departure,…
- [Incident 20060429006089I](https://openairdocs.org/incident/20060429006089I), Apr 29, 2006: Lkheed SP2H (N4235T), Missoula, MT. (-23) During checkride shutdown of #1 engine, the pressure relief valve possibly failed, and burned out the feather pump motor. Aircraft declared in-flight…
- [Incident 19870421015269I](https://openairdocs.org/incident/19870421015269I), Apr 21, 1987: Lkheed SP2HJOHNSON (N4235T), Alamogordo, NM, Minor damage. Crew failed to lower gear for landing. Landed gear up.

## Other aircraft with N4235T

- [Cancelled 1973-06-22](https://openairdocs.org/deregistered/N4235T-1973-06-22): Piper PA-28-180, S/N 28-7205110. Owner: [Allen County Aviation Inc](https://openairdocs.org/faa-owner/ALLEN%20COUNTY%20AVIATION%20INC), [Lima, OH](https://openairdocs.org/faa-place/OH/Lima)

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