# Accident 19910826036769A: Bell 412, Gardenbanks Blk, LA, August 26, 1991

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 26, 1991, 07:15 local time
- Place: Gardenbanks Blk, LA
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Air taxi and commuter (Part 135)
- Operator: HEEA
- Aircraft: N3909F, a cancelled registration (https://openairdocs.org/deregistered/N3909F-2013-04-08) (OpenAirDocs)
- Registry model: Bell 412 (registry code 1182202, https://openairdocs.org/model/bell-412) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PT6T-3 (registry code 52102, https://openairdocs.org/engine/pratt-whitney-canada-pt6t-3) (OpenAirDocs)
- Reported make and model: BELL 412
- Reported engine: PWA PT6T3B
- People aboard: 9
- Fatal injuries: 1
- Pilot flight hours: 12,400 total, 2,145 in this make and model, 89 in the last 90 days
- NTSB investigation: [NTSB FTW91FA155](https://openairdocs.org/ntsb/FTW91FA155) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910826036769A

## Narrative

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

TAIL ROTOR DRIVE SHAFT HANGER BEARING FAILED. SPUN INTO WATER AND ROLLED ON LANDING. IMPROPER BEARING CLEANING.

## 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 FTW91FA155](https://openairdocs.org/ntsb/FTW91FA155), Aug 26, 1991: Bell 412 (N3909F), Garden Banks, substantial damage, 1 fatal. Probable cause: OVERHEATING AND SUBSEQUENT FAILURE OF THE NUMBER ONE TAIL ROTOR HANGER BEARING FOR AN UNDETERINED REASON, AND FAILURE OF THE TAIL ROTOR DRIVE SHAFT.

## Other reports on N3909F (1)

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

- [Incident 19881121065839I](https://openairdocs.org/incident/19881121065839I), Nov 21, 1988: Bell 412 (N3909F), Gulf Of Mexico, LA, Minor damage. Smoke from center console followed by other electrical problems. Circuit breaker popped. Bellcrank chaffing on wire

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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