# N502AW: 1998 Williams Helicopter UH-1H, registration cancelled 2015-05-20

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 20, 2015
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Williams Helicopter UH-1H](https://openairdocs.org/model/williams-helicopter-uh-1h) (registry code 9790870)
- Engine: [Lycoming T53-L-13](https://openairdocs.org/engine/lycoming-t53-l-13) (registry code 41551)
- Data sheets: [TCDS H7SO](https://openairdocs.org/tcds/H7SO) (OpenAirDocs)
- Serial number: 69-15340
- Year built: 1998
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Restricted, agriculture and pest control, forest, other
- Airworthiness date: July 1, 2005
- Certificate issued: October 23, 2008
- Last registry action: March 25, 2009
- Mode S code: A64173
- Owner when cancelled: [Aero Leasing LLC](https://openairdocs.org/faa-owner/AERO%20LEASING%20LLC)
- Location: [Glendale, AZ](https://openairdocs.org/faa-place/AZ/Glendale)
- Owner type: Corporation
- Owner's area on the map: 33.7010° N, 112.1581° W: Placed by OpenAirDocs at the center of ZIP code 85310, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N502AW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=502AW
- Page: https://openairdocs.org/deregistered/N502AW-2015-05-20

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 Williams Helicopter UH-1H: https://openairdocs.org/model/williams-helicopter-uh-1h.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 WPR12LA039](https://openairdocs.org/ntsb/WPR12LA039), Nov 15, 2011: Williams Helicopter UH-1H (N502AW), Grand Canyon, AZ, substantial damage. Probable cause: The loss of main rotor power due to a main rotor transmission failure from a lack of lubrication.

## 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 20111115026789A](https://openairdocs.org/incident/20111115026789A), Nov 15, 2011: Williams Helicopter Corp UH-1H (N502AW), AZ, Substantial damage. The pilot departed valle, AZ (40G) enroute to hualapai hilltop - supai, AZ (approximately 43 miles nw of valle, AZ). The pilot was flying at approximately 500"…

## Other aircraft with N502AW

- [Registered now](https://openairdocs.org/aircraft/N502AW): Textron B200GT, S/N BY-374, built 2020

---
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.