# N138WW: North American T-28B, registration cancelled 1996-06-21

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 21, 1996
- Status when cancelled: Triennial form not returned
- Airframe: [North American T-28B](https://openairdocs.org/model/north-american-t-28b) (registry code 6402506)
- Serial number: 138150
- Type of aircraft: Fixed wing single engine
- Certificate issued: February 22, 1990
- Last registry action: April 17, 1996
- Mode S code: A09AF2
- Owner when cancelled: [World Wide Aeronautical Indust Inc](https://openairdocs.org/faa-owner/WORLD%20WIDE%20AERONAUTICAL%20INDUST%20INC)
- Location: [Moorepark, CA](https://openairdocs.org/faa-place/CA/Moorepark)
- Owner type: Corporation
- Owner's area on the map: 34.3064° N, 118.8906° W: Placed by OpenAirDocs at the center of ZIP code 93021, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N138WW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=138WW
- Page: https://openairdocs.org/deregistered/N138WW-1996-06-21

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 North American T-28B: https://openairdocs.org/model/north-american-t-28b.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 LAX91LA121](https://openairdocs.org/ntsb/LAX91LA121), Feb 25, 1991: North American T-28B (N138WW), Mesa, AZ, substantial damage. Probable cause: 1) THE FAILURE OF THE AIRPLANE'S ENGINE UPPER CRANKCASE OIL BREATHER LINE; 2) TOTAL LOSS OF ENGINE POWER CAUSED BY A LACK OF LUBRICATING OIL. A FACTOR IN THIS ACCIDENT WAS THE PILOT INADVERTANTLY…

## 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 19910225003469A](https://openairdocs.org/incident/19910225003469A), Feb 25, 1991: Namer T28B (N138WW), Mesa, AZ, Substantial damage. Lost oil pressure. Engine seized. Hard landing avoiding wires. Engine oil breather hose ruptured. Vented oil.

## Other aircraft with N138WW

- [Registered now](https://openairdocs.org/aircraft/N138WW): Cessna 170B, S/N 26189, built 1954

---
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.