# N21AP: 1976 Bishop AEROJET SPECIAL

- Status: Valid registration
- Airframe: [Bishop AEROJET SPECIAL](https://openairdocs.org/model/bishop-aerojet-special) (registry code 0564303, 1 seats)
- Engine: [Micro TRS-18 series](https://openairdocs.org/engine/micro-trs-18-series) (registry code 43901)
- Data sheets: [TCDS E13CE](https://openairdocs.org/tcds/E13CE) (Ames Industrial Corporation) (OpenAirDocs)
- Serial number: 002
- Year built: 1976
- Type: Fixed wing single engine
- Engine type: Turbo-jet
- Airworthiness: Experimental, research and development, exhibition
- Airworthiness date: June 25, 2024
- Certificate issued: February 7, 2012
- Expires: February 29, 2028
- Mode S code: A1B737
- Registered owner: [Aerial Productions International Inc](https://openairdocs.org/faa-owner/AERIAL%20PRODUCTIONS%20INTERNATIONAL%20INC)
- Location: [Tucson, AZ](https://openairdocs.org/faa-place/AZ/Tucson)
- Owner type: Corporation
- Owner's area on the map: 32.0703° N, 110.9063° W: Placed by OpenAirDocs at the center of ZIP code 85756, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21AP
- Page: https://openairdocs.org/aircraft/N21AP

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Micro TRS-18 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Bishop AEROJET SPECIAL)

None in force.

### Matched by engine (Micro TRS-18 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N21AP.

## NTSB investigations on N21AP not matched to an aircraft (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 NYC77FGM34](https://openairdocs.org/ntsb/NYC77FGM34), Aug 6, 1977: Acrojet Spcl (N21AP), Latrobe, PA, substantial damage

## FAA accident and incident reports

None matched to N21AP.

## Reports on N21AP not matched to an aircraft (1)

They name N21AP, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 19770806023899A](https://openairdocs.org/incident/19770806023899A), Aug 6, 1977: Amtr 0564303 (N21AP), Latrobe, PA, Substantial damage. Gusts 25 knots.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Bishop AEROJET SPECIAL aircraft: https://openairdocs.org/model/bishop-aerojet-special/aircraft.md
- The Micro TRS-18 series engine: https://openairdocs.org/engine/micro-trs-18-series.md

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