# Incident 20051104027169I: Beech 99A, Great Falls, MT, November 4, 2005

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 4, 2005, 02:14 local time
- Place: Great Falls, MT
- Airport: Great Falls International
- Damage: Minor damage
- Phase of flight: Normal Cruise
- Operating rules: Air taxi and commuter (Part 135)
- Operator: TIMA
- Location: 47.4823° N, 111.3703° W: Placed by OpenAirDocs at GREAT FALLS INTL (GTF), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.4823&lon=-111.3703&mi=10
- Aircraft: N899CA, registered now (https://openairdocs.org/aircraft/N899CA) (OpenAirDocs)
- Registry model: Beech 99A (registry code 1154003, https://openairdocs.org/model/beech-99a) (OpenAirDocs)
- Registry engine: U/A Canada PT6 SER 578HP (registry code 61501, https://openairdocs.org/engine/u-a-canada-pt6-ser-578hp) (OpenAirDocs)
- Reported make and model: BEECH 99A
- Reported engine: PWA PT6A27
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,100 total, 2,700 in this make and model, 80 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20051104027169I

## Narrative

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

(-23) ON 11/04/05, ALPINE AVIATION INC., D/B/A ALPINE AIR, ENROUTE FROM FCA TO BIL WITH THE PILOT ONBOARD, AT 13,000 FT. STARTED DEVELOPING RIGHT ENGINE PROBLEMS. THE PILOT FIRST NOTICED THAT THE RIGHT ENGINE TORQUE INDICATOR WAS FLUCTUATING AND THEN THE OIL PRESSURE INDICATOR GAGE BEGAN FLUCTUATING. THE PILOT SHINED HIS FLASHLIGHT OUT TO SEE ANY INDICATION OF OIL LEAKAGE AND NONE WAS NOTICED. THE PILOT THEN PROCEEDED TO REDUCE POWER TO THE RIGHT ENGINE, WHEN THERE WAS A LOUD BANG AND SAW FIRE BALLS OUT THE EXHAUST STACKS. THE PILOT THEN PERFORMED EMERGENCY ENGINE SHUT DOWN PROCEDURES, CONTACTED SLC CENTER AND DIVERTED TO GTF AND LANDED WITHOUT INCIDENT. A POSTFLIGHT INSPECTION REVEALED NO OIL INDICATION ON THE ENGINE OIL DIPSTICK. THE PILOT STATED THAT PRIOR TO THE FIRST FLIGHT OF THE DAY, THE OIL LEVEL WAS CHECKED AND WAS NOTED AROUND THE 3 MARK. THE RIGHT ENGINE WILL BE TORN DOWN AND INSPECTED FOR THE CAUSE OF THE FAILURE. THE OPERATOR WILL SUBMIT A SDR TO THIS OFFICE AND WILL BE FILED WITH THIS REPORT AS SOON AS THE INSPECTION OF THE ENGINE IS COMPLETED. THIS INCIDENT IS CONSIDERED CLOSED.

## Other reports on N899CA (2)

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

- [Incident 19910411013689I](https://openairdocs.org/incident/19910411013689I), Apr 11, 1991: Beech B99 (N899CA), Syracuse, NY. NR2 engine oil presssure light on. Shut engine down and returned. Wire broken off at cannon plug at oil transmitter
- [Incident 19900509024779I](https://openairdocs.org/incident/19900509024779I), May 9, 1990: Beech B99 (N899CA), Syracuse, NY, Minor damage. Aircraft tipped down on tail when unloading passengers.

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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