# Incident 19840323015679I: Hiller UH12E, Morgan Hill, CA, March 23, 1984

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: March 23, 1984, 11:20 local time
- Place: Morgan Hill, CA
- Phase of flight: Pwr Off Run Land (Autorotation
- Operating rules: Agricultural (Part 137)
- Location: 37.1325° N, 121.6419° W: Placed by OpenAirDocs: center of Morgan Hill, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.1325&lon=-121.6419&mi=10
- Aircraft: N4030C, a cancelled registration (https://openairdocs.org/deregistered/N4030C-1988-04-13) (OpenAirDocs)
- Registry model: Hiller UH-12E (registry code 4360122, https://openairdocs.org/model/hiller-uh-12e) (OpenAirDocs)
- Reported make and model: HILLER UH12E
- Reported engine: LYC VO540C2A
- Fatal injuries: 0
- Pilot flight hours: 3,000 total, 60 in this make and model, 70 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19840323015679I

## Narrative

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

LOUD BANG AND ROTOR RPM DECAY ON LANDING APPROACH. TORSION COUPLING BOLTS SHEARED. BOLT HOLES WORN. NUTS UNSAFTIED.

## Other reports on N4030C (1)

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

- [Accident 19820512015669A](https://openairdocs.org/incident/19820512015669A), May 12, 1982: Hiller UH12E (N4030C), Benson, MN, Substantial damage. Helicopter damaged when engine stopped and damage occurred during emergency landing.

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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