# N87U: Grumman G-21A, registration cancelled 2023-06-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 10, 2023
- Status when cancelled: Registration pending, canceled
- Airframe: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204)
- Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008)
- Data sheets: [TCDS TC 654](https://openairdocs.org/tcds/TC%20654) (OpenAirDocs)
- Serial number: B126
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: October 21, 1964
- Last registry action: March 8, 2022
- Mode S code: ABF5BF
- Location: [Sheridan, WY](https://openairdocs.org/faa-place/WY/Sheridan)
- Owner type: Individual
- Owner's area on the map: 44.8325° N, 106.8963° W: Placed by OpenAirDocs at the center of ZIP code 82801, within about 13 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N87U
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=87U
- Page: https://openairdocs.org/deregistered/N87U-2023-06-10

From the FAA registry file of October 31, 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 Grumman G-21A: https://openairdocs.org/model/grumman-g-21a.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 ANC80DA037](https://openairdocs.org/ntsb/ANC80DA037), Mar 26, 1980: Grumman G-21 (N87U), Karluk, AK, substantial damage

## FAA accident and incident reports (2)

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 19800326028199A](https://openairdocs.org/incident/19800326028199A), Mar 26, 1980: Gruman G21A (N87U), Karluk, AK, Substantial damage. Engines failed to respond evenly on step taxi after landing. Swerved onto beach. Fuel grade used invites carb ice.
- [Incident 19790425025099I](https://openairdocs.org/incident/19790425025099I), Apr 25, 1979: Grumav G21A (N87U), Kodiak, AK, Minor damage. Landing gear retracted only partially. Collapsed on landing. Selector handle loose from the pall shaft.

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