# Accident 19740121002749A: Grumav AA1B, Cooperstown, ND, January 21, 1974

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 21, 1974
- Place: Cooperstown, ND
- Airport: Cooperstown
- Damage: Substantial damage
- Phase of flight: Takeoff Ground Roll
- Location: 47.4228° N, 98.1059° W: Placed by OpenAirDocs at COOPERSTOWN MUNI (S32), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.4228&lon=-98.1059&mi=10
- Aircraft: N9990L, a cancelled registration (https://openairdocs.org/deregistered/N9990L-1981-02-05) (OpenAirDocs)
- Registry model: Grumman American Avn. AA-1B (registry code 3960103, https://openairdocs.org/model/grumman-american-avn-aa-1b) (OpenAirDocs)
- Reported make and model: GRUMAV AA1B
- Fatal injuries: 0
- Pilot flight hours: 1,232 total, 488 in this make and model, 161 in the last 90 days
- NTSB investigation: [NTSB MKC74DTG12](https://openairdocs.org/ntsb/MKC74DTG12) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19740121002749A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

SIMULATED SOFT FLD TKOF L GR HIT DRIFTED SNOW ON L SIDE OF RWY.ACFT IN DEEP SNOW BFR IP GAINED CTL

## The NTSB's investigation of this event (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 MKC74DTG12](https://openairdocs.org/ntsb/MKC74DTG12), Jan 21, 1974: Amer Avco AA1-B (N9990L), Cooperstown, ND, substantial damage

## Other reports on N9990L (1)

Matched to the same aircraft by N-number and date.

- [Incident 19780121003979I](https://openairdocs.org/incident/19780121003979I), Jan 21, 1978: Gulstm AA1B (N9990L), Newberg, ND, Minor damage. Aircraft landing on farm road struck snowbank, swerved and flipped over on its back.

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. For accidents, the NTSB's own investigation is the fuller record.

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