# N21AA: 1956 Piper PA-18, registration cancelled 2012-08-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 23, 2012
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Piper PA-18](https://openairdocs.org/model/piper-pa-18) (registry code 7101802)
- Engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506)
- Data sheets: [TCDS 1A2](https://openairdocs.org/tcds/1A2), [TCDS E-229](https://openairdocs.org/tcds/E-229) (OpenAirDocs)
- Serial number: 18-5034
- Year built: 1956
- Type of aircraft: Fixed wing single engine
- Engine type: 4 cycle
- Airworthiness: Restricted, agriculture and pest control
- Airworthiness date: January 8, 1974
- Certificate issued: July 13, 1978
- Last registry action: March 23, 1991
- Mode S code: A1B72A
- Owner when cancelled: [Mattingley David L](https://openairdocs.org/faa-owner/MATTINGLEY%20DAVID%20L)
- Location: [Anchorage, AK](https://openairdocs.org/faa-place/AK/Anchorage)
- Owner type: Individual
- Owner's area on the map: 61.1151° N, 149.6159° W: Placed by OpenAirDocs at the center of ZIP code 99507, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N21AA
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21AA
- Page: https://openairdocs.org/deregistered/N21AA-2012-08-23

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 Piper PA-18: https://openairdocs.org/model/piper-pa-18.md

## NTSB investigations (3)

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 ANC80FA102](https://openairdocs.org/ntsb/ANC80FA102), Sep 21, 1980: Piper PA-18 (N21AA), Anchorage, AK, destroyed, 2 fatal
- [NTSB FTW76DRG64](https://openairdocs.org/ntsb/FTW76DRG64), Jun 29, 1976: Piper PA-18 (N21AA), New Berlin, TX, substantial damage
- [NTSB FTW70DRG37](https://openairdocs.org/ntsb/FTW70DRG37), Apr 21, 1970: Piper PA-18 (N21AA), Norias, TX, substantial damage

## FAA accident and incident reports (3)

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 19800921044329A](https://openairdocs.org/incident/19800921044329A), Sep 21, 1980: Piper PA18 (N21AA), Anchorage, AK, Destroyed, 1 fatal. Dark night, adverse weather, unskilled pilot. Over-gross, beyond CG. Lost control of aircraft.
- [Incident 19790909048779I](https://openairdocs.org/incident/19790909048779I), Sep 9, 1979: Piper PA18 (N21AA), Kenai, AK, Minor damage. Aircraft landed in boggy tundra with forward c.g. flipped over upon application of brakes.
- [Accident 19760629022819A](https://openairdocs.org/incident/19760629022819A), Jun 29, 1976: Piper PA18 (N21AA), New Berlin, TX, Substantial damage

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