# N28726: 1968 Boeing 707-331B, registration cancelled 2013-04-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: April 15, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Boeing 707-331B](https://openairdocs.org/model/boeing-707-331b) (registry code 138366H)
- Engine: [Pratt & Whitney JT3D-3&3B](https://openairdocs.org/engine/pratt-whitney-jt3d-3-3b) (registry code 52039)
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26) (OpenAirDocs)
- Serial number: 19571
- Year built: 1968
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: March 20, 1968
- Certificate issued: October 31, 1984
- Last registry action: December 5, 1987
- Mode S code: A2EAB9
- Owner when cancelled: [Aviation Technical Support Inc](https://openairdocs.org/faa-owner/AVIATION%20TECHNICAL%20SUPPORT%20INC)
- Location: [Waco, TX](https://openairdocs.org/faa-place/TX/Waco)
- Owner type: Corporation
- Owner's area on the map: 31.6267° N, 97.0845° W: Placed by OpenAirDocs at the center of ZIP code 76705, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N28726
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=28726
- Page: https://openairdocs.org/deregistered/N28726-2013-04-15

From the FAA registry file of November 5, 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 Boeing 707-331B: https://openairdocs.org/model/boeing-707-331b.md

## 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.

- [Incident 19810219010899I](https://openairdocs.org/incident/19810219010899I), Feb 19, 1981: Boeing 707* (N28726), IL. Pilot reported hydraulic failure. Found hydraulic pump leaking.

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