# Accident 19750702020319A: Bell 47G2, Napa, CA, July 2, 1975

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 2, 1975
- Place: Napa, CA
- Airport: Napa Airport
- Damage: Destroyed
- Phase of flight: Forced/Precautionary Landing
- Location: 38.2132° N, 122.2807° W: Placed by OpenAirDocs at NAPA COUNTY (APC), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2132&lon=-122.2807&mi=10
- Aircraft: N988B, a cancelled registration (https://openairdocs.org/deregistered/N988B-1975-08-27) (OpenAirDocs)
- Registry model: Bell 47G-2 (registry code 1181008, https://openairdocs.org/model/bell-47g-2) (OpenAirDocs)
- Reported make and model: BELL 47G2
- Fatal injuries: 0
- Pilot flight hours: 6,000 total, 100 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB OAK76FVG02](https://openairdocs.org/ntsb/OAK76FVG02) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19750702020319A

## Narrative

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

IMPROPERLY MACHINED T/R HUB BOLT FAILED. BLADE SEPARATED FROM ROTOR YOKE. PN 47-641-052-3.

## 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 OAK76FVG02](https://openairdocs.org/ntsb/OAK76FVG02), Jul 2, 1975: Bell 47G-2 (N988B), Napa, CA, destroyed, 1 fatal

## Other reports on N988B (1)

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

- [Accident 19731013033719A](https://openairdocs.org/incident/19731013033719A), Oct 13, 1973: Bell 47G2 (N988B), Brentwood, CA, Substantial damage. Control lmtd by steep descent and heavy load. Power settling.

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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