# N7407L: 1971 Piper PA-31-310, registration cancelled 2014-11-17

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 17, 2014
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Piper PA-31-310](https://openairdocs.org/model/piper-pa-31-310) (registry code 7103102)
- Engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533)
- Data sheets: [TCDS E14EA](https://openairdocs.org/tcds/E14EA) (OpenAirDocs)
- Serial number: 31-790
- Year built: 1971
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: February 10, 1972
- Certificate issued: February 22, 1991
- Last registry action: April 14, 1994
- Mode S code: A9F5E2
- Owner when cancelled: [John Westbrook Inc](https://openairdocs.org/faa-owner/JOHN%20WESTBROOK%20INC)
- Location: [Englewood, CO](https://openairdocs.org/faa-place/CO/Englewood)
- Owner type: Corporation
- Owner's area on the map: 39.5732° N, 104.8649° W: Placed by OpenAirDocs at the center of ZIP code 80112, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N7407L
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=7407L
- Page: https://openairdocs.org/deregistered/N7407L-2014-11-17

From the FAA registry file of October 29, 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 Piper PA-31-310: https://openairdocs.org/model/piper-pa-31-310.md

## 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 DEN91FA065](https://openairdocs.org/ntsb/DEN91FA065), May 1, 1991: Piper PA-31B-310 (N7407L), Bennett, CO, destroyed, 1 fatal. Probable cause: IN-FLIGHT SEPARATION OF THE LEFT ENGINE COWL ASSEMBLY THAT WAS NOT PROPERLY LATCHED, AND FAILURE OF THE PILOT TO MAINTAIN MINIMUM CONTROL SPEED, WHICH RESULTED IN HIS LOSS OF AIRCRAFT CONTROL.…

## 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 19910501013939A](https://openairdocs.org/incident/19910501013939A), May 1, 1991: Piper PA31310 (N7407L), Bennett, CO, Destroyed, 1 fatal. Lost left engine cowl and power. Not feathered. Below VMC lost control. Left turbo failed. Failed to secure cowl.

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