# Accident 19770918039449A: Cessna 177RG, Trinity Center, CA, September 18, 1977

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 18, 1977
- Place: Trinity Center, CA
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Location: 40.9841° N, 122.7083° W: Placed by OpenAirDocs: center of Trinity Center, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.9841&lon=-122.7083&mi=10
- Aircraft: N35913, registered now (https://openairdocs.org/aircraft/N35913) (OpenAirDocs)
- Registry model: Cessna 177RG (registry code 2073709, https://openairdocs.org/model/cessna-177rg) (OpenAirDocs)
- Registry engine: Lycoming IO-360-A1B6D (registry code 41593, https://openairdocs.org/engine/lycoming-io-360-a1b6d) (OpenAirDocs)
- Reported make and model: CESSNA 177RG
- Reported engine: LYC
- Fatal injuries: 0
- Pilot flight hours: 930 total, 9 in this make and model, 50 in the last 90 days
- NTSB investigation: [NTSB OAK77DVG67](https://openairdocs.org/ntsb/OAK77DVG67) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19770918039449A

## Narrative

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

BROKEN O RING IN PROP GOV RELIEF VALVE ASSEMBLY ALLOWED OVERSPEED,NO 1,3,4 CONNCTNG RDS FAILD.

## 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 OAK77DVG67](https://openairdocs.org/ntsb/OAK77DVG67), Sep 18, 1977: Cessna 177RG (N35913), Trinity Center, CA, substantial damage

## Other reports on N35913 (2)

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

- [Incident 19910807040569I](https://openairdocs.org/incident/19910807040569I), Aug 7, 1991: Cessna 177RG (N35913), Detroit, MI, Minor damage. No gear down safe light. Nose gear collapsed on landing. Bolt holding nose gear lock to drag link lost.
- [Incident 19780802047729I](https://openairdocs.org/incident/19780802047729I), Aug 2, 1978: Cessna 177RG (N35913), Auburn, CA, Minor damage. Cycled gear several times before getting green light. Nose gear collapsed on rollout. NLG downlock bolt missing.

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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