# Accident 19770215003179A: Mooney M20C, Half Moon Bay, CA, February 15, 1977

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: February 15, 1977
- Place: Half Moon Bay, CA
- Airport: Half Moon Bay
- Damage: Substantial damage
- Phase of flight: Takeoff Ground Roll
- Location: 37.5134° N, 122.5012° W: Placed by OpenAirDocs at HALF MOON BAY (HAF), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.5134&lon=-122.5012&mi=10
- Aircraft: N6494U, a cancelled registration (https://openairdocs.org/deregistered/N6494U-1990-08-17) (OpenAirDocs)
- Registry model: Mooney M20C (registry code 5870208, https://openairdocs.org/model/mooney-m20c) (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Fatal injuries: 0
- Pilot flight hours: 487 total, 445 in this make and model, 1 in the last 90 days
- NTSB investigation: [NTSB OAK77FVM08](https://openairdocs.org/ntsb/OAK77FVM08) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19770215003179A

## Narrative

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

EXTREME NOSE GEAR SHIMMY CAUSED LOSS OF DIRECTIONAL CONTROL.

## 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 OAK77FVM08](https://openairdocs.org/ntsb/OAK77FVM08), Feb 15, 1977: Mooney MK20C (N6494U), Half Moon Bay, CA, substantial damage

## Other reports on N6494U (1)

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

- [Accident 19860502015619A](https://openairdocs.org/incident/19860502015619A), May 2, 1986: Mooney M20C (N6494U), Twin Falls, ID, Destroyed. Went off the runway side after landing. Made a go around but let the wind bank the aircraft. Stalled into a pasture.

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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