# N45BH: Billings/Humbyrd THORP T-18, registration cancelled 2017-06-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 30, 2017
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Billings/Humbyrd THORP T-18](https://openairdocs.org/model/billings-humbyrd-thorp-t-18) (registry code 89510P4)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: T515
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 2, 1987
- Certificate issued: August 14, 1995
- Last registry action: February 10, 2010
- Mode S code: A56FE4
- Owner when cancelled: [Savage Air Inc](https://openairdocs.org/faa-owner/SAVAGE%20AIR%20INC)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.8187° N, 75.5062° W: Placed by OpenAirDocs at the center of ZIP code 19810, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N45BH
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=45BH
- Page: https://openairdocs.org/deregistered/N45BH-2017-06-30

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 Billings/Humbyrd THORP T-18: https://openairdocs.org/model/billings-humbyrd-thorp-t-18.md

## 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 SEA07CA144](https://openairdocs.org/ntsb/SEA07CA144), Jun 4, 2007: Billings/Humbyrd Thorpe T-18 (N45BH), Corona, CA, substantial damage. Probable cause: A loss of engine power during the initial climb due to a fuel system malfunction. The pilot's incorrect maintenance modification to the fuel system and continued operation with known deficiencies…
- [NTSB LAX88LA315](https://openairdocs.org/ntsb/LAX88LA315), Sep 10, 1988: Billings/Humbyrd Thorp T-18 (N45BH), Corona, CA, minor 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.

- [Accident 20070604009529A](https://openairdocs.org/incident/20070604009529A), Jun 4, 2007: Amtr THORPT18 (N45BH), Corona, CA, Substantial damage. (-23) Engine started to sputter and lose power during takeoff climb. During attempt to turn around and land back at the departure airport the aircraft stalled…
- [Accident 19880910038092A](https://openairdocs.org/incident/19880910038092A), Sep 10, 1988: Amtrth THORPT18 (N45BH), Corona, CA, Minor damage. Overtaken and hit from above by N56243. Lower aircraft prop cut off nose gear of 56243. Both landed safely.

## Other aircraft with N45BH

- [Registered now](https://openairdocs.org/aircraft/N45BH): Compagnie Daher TBM 700, S/N 1461, built 2022

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