# Accident 19890506010839A: Bell 412, Girdwood, AK, May 6, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 6, 1989, 12:38 local time
- Place: Girdwood, AK
- Damage: Destroyed
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: General operating rules (Part 91)
- Operator: ERAA
- Location: 60.8998° N, 148.9103° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=60.8998&lon=-148.9103&mi=10
- Aircraft: N524EH, a cancelled registration (https://openairdocs.org/deregistered/N524EH-1991-12-12) (OpenAirDocs)
- Registry model: Bell 412 (registry code 1182202, https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Reported make and model: BELL 412
- Reported engine: PWA PT6T3B
- Fatal injuries: 0
- Pilot flight hours: 9,300 total, 1,700 in this make and model
- NTSB investigation: [NTSB ANC89FA069](https://openairdocs.org/ntsb/ANC89FA069) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19890506010839A

## Narrative

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

SEVERE VIBRATION EN ROUTE CAUSING DAMAGE. AUTOROTATED. LOST CYCLIC. ENGINE QUIT. LANDED IN TURN. ROTOR BOLT MISSING

## 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 ANC89FA069](https://openairdocs.org/ntsb/ANC89FA069), May 6, 1989: Bell 412 (N524EH), Girdwood, AK, destroyed. Probable cause: A MAIN ROTOR FLIGHT CONTROL BOLT (PART NUMBER 20-057-6-38D) CAME OUT OF ITS ROD END BEARING WHILE IN FLIGHT DUE TO THE BOLT BEING IMPROPERLY TORQUED DURING MAINTENANCE.

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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