# Accident 19860708031469A: Bell 47G5, Porterville, CA, July 8, 1986

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 8, 1986, 09:15 local time
- Place: Porterville, CA
- Damage: Substantial damage
- Phase of flight: Low Level Operations
- Operating rules: Agricultural (Part 137)
- Operator: RPHG
- Location: 35.9594° N, 118.9205° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=35.9594&lon=-118.9205&mi=10
- Aircraft: N1316X, a cancelled registration (https://openairdocs.org/deregistered/N1316X-1994-03-16) (OpenAirDocs)
- Registry model: Bell 47G-5 (registry code 1181032, https://openairdocs.org/model/bell-47g-5) (OpenAirDocs)
- Reported make and model: BELL 47G5
- Reported engine: LYC VO435B1A
- Fatal injuries: 0
- Pilot flight hours: 10,077 total, 5,000 in this make and model, 110 in the last 90 days
- NTSB investigation: [NTSB LAX86FVA11](https://openairdocs.org/ntsb/LAX86FVA11) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19860708031469A

## Narrative

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

TAIL ROTOR DRIVESHAFT FAILED DUE TO CORROSION. CAUSED UNCONTROLLED SPIN AND CRASH.

## 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 LAX86FVA11](https://openairdocs.org/ntsb/LAX86FVA11), Jul 8, 1986: Bell 47G-5 (N1316X), Porterville, CA, substantial damage

## Other reports on N1316X (3)

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

- [Accident 19880605017839A](https://openairdocs.org/incident/19880605017839A), Jun 5, 1988: Bell 47G5 (N1316X), Oceano, CA, Substantial damage. Caught in downwash on a turn around under powerlines. Lost control and main rotors hit a power pole causing crash.
- [Accident 19850520018449A](https://openairdocs.org/incident/19850520018449A), May 20, 1985: Bell 47G5 (N1316X), Lindsay, CA, Substantial damage. Lost power en route to spray operation. Tail boom cut off by main rotor on landing. 4 spark plugs fouled, left side
- [Accident 19750323005739A](https://openairdocs.org/incident/19750323005739A), Mar 23, 1975: Bell 47G5 (N1316X), Porterville, CA, Substantial damage. Air taxi frm wash rack. M/r blades hit truck parked beside helipad.

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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