# N9725: Grumman Acft ENG Cor-Schweizer G-164A, registration cancelled 1991-12-27

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 27, 1991
- Status when cancelled: Triennial form not returned
- Airframe: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801)
- Data sheets: [TCDS 1A16](https://openairdocs.org/tcds/1A16) (OpenAirDocs)
- Serial number: 1235
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 25, 1978
- Last registry action: November 18, 1991
- Mode S code: AD8E1A
- Owner when cancelled: [Sky Hawk Inc](https://openairdocs.org/faa-owner/SKY%20HAWK%20INC)
- Location: [Waldenburg, AR](https://openairdocs.org/faa-place/AR/Waldenburg)
- Owner type: Corporation
- Owner's area on the map: 35.5653° N, 90.9346° W: Placed by OpenAirDocs: center of Waldenburg, AR, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N9725
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9725
- Page: https://openairdocs.org/deregistered/N9725-1991-12-27

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 Grumman Acft ENG Cor-Schweizer G-164A: https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a.md

## NTSB investigations (2)

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 MKC89LA142](https://openairdocs.org/ntsb/MKC89LA142), Jun 23, 1989: Grumman-Schweizer G-164A (N9725), Waldenburg, AR, substantial damage. Probable cause: THE TOTAL FAILURE OF THE ENGINE SUPERCHARGER WHICH RESULTED IN A LOSS OF ENGINE POWER.
- [NTSB MIA74DKJ63](https://openairdocs.org/ntsb/MIA74DKJ63), Jun 16, 1974: Grumman G-164 (N9725), Moundville, AL, 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 19890623017509A](https://openairdocs.org/incident/19890623017509A), Jun 23, 1989: Scwzer G164A (N9725), Waldenburg, AR, Substantial damage. Sulper charger blower failed on takeoff. Landed in tall corn and nosed over.
- [Accident 19740616023029A](https://openairdocs.org/incident/19740616023029A), Jun 16, 1974: Gulstm G164A (N9725), Moundville, AL, Substantial damage. Eng failed in climbing turn.

## Other aircraft with N9725

- [Cancelled 1929-11-01](https://openairdocs.org/deregistered/N9725-1929-11-01): Ireland N-2, S/N 20. Owner: [Curtiss Flying Service Of Florida Inc](https://openairdocs.org/faa-owner/CURTISS%20FLYING%20SERVICE%20OF%20FLORIDA%20INC), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)

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