# Accident 19901209059319A: Beech 3NM, Bozeman, MT, December 9, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 9, 1990, 15:26 local time
- Place: Bozeman, MT
- Airport: Gallatin Fld
- Damage: Substantial damage
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 45.2608° N, 111.3195° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=45.2608&lon=-111.3195&mi=10
- Aircraft: N9159B, a cancelled registration (https://openairdocs.org/deregistered/N9159B-2013-06-10) (OpenAirDocs)
- Registry model: Beech 3NM (registry code 1151044, https://openairdocs.org/model/beech-3nm) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: BEECH 3NM
- Reported engine: PWA R985AN1
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,600 total
- NTSB investigation: [NTSB SEA91LA031](https://openairdocs.org/ntsb/SEA91LA031) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19901209059319A

## Narrative

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

CRANKSHAFT MASTER ROD FAILED. SUDDEN ENGINE STOPPAGE FAILED SHAFT AT PROP HUB. PROP ASSEMBLY HIT NOSE OF AIRCRAFT.

## 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 SEA91LA031](https://openairdocs.org/ntsb/SEA91LA031), Dec 9, 1990: Beech 3NM (N9159B), Bozeman, MT, substantial damage. Probable cause: THE FAILURE OF THE RIGHT ENGINE MASTER ROD.

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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