Saab-Fairchild SF-340A N146CA
21 November 1991 · Buffalo, New York, United States · No injuries
Summary
On 21 November 1991 at about 21:09 local time, a Saab-Fairchild SF-340A registered N146CA, operated by COM Air Inc., was involved in an incident near Buffalo, New York, United States. 29 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 21:09
- Classification
- Incident
- Location
- Buffalo, New York, United States
- Coordinates
- 42.9294, -78.7502
- Aircraft
- Saab-Fairchild SF-340A
- Registration
- N146CA
- Category
- Airplane
- Engines
- 2
- Operator
- COM Air Inc.
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Cincinnati → Toronto
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- NYC92IA035
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 29 | 0 | 0 | 0 | 29 |
Probable cause
A FATIGUE FRACTURE ON THE PROPELLER SHAFT, THAT ORIGINATED AT A SUBSURFACE SLAG INCLUSION, WHICH REMAINED IN THE MATERIAL USED TO MANUFACTURE THE SHAFT.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE FLIGHT CREW DETECTED VIBRATION COMING FROM THE RIGHT PROPELLER AND MADE A DECISION TO SHUT THE ENGINE DOWN. DURING THE SHUTDOWN PROCESS THE PROPELLER SEPARATED FROM THE AIRPLANE. EXAMINATION OF BOTH PORTIONS OF THE FAILED PROPELLER SHAFT REVEALED THE SHAFT FAILED DUE TO FATIGUE. METALLURGICAL EXAMINATION FOUND A SLAG INCLUSION JUST BELOW THE FRACTURE SURFACE. THIS DEFECT OCCURRED DURING THE MELTING OF THE ORIGINAL INGOT.
Quoted verbatim from the NTSB record.
Other Saab-Fairchild SF-340A accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 Feb 1988 | Saab-Fairchild SF-340A | Fayetteville, Arkansas, United States | Express Airlines | Minor injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 1 Jul 1991 | Maule M6-235 | Arcade, New York, United States | Haley, Lawrence E. | No injuries | - |
| 2 Jul 1991 | Cessna C-172 | Clarence Center, New York, United States | Augusta Aviation, Inc. | Minor injuries | - |
| 2 Jul 1991 | Piper PA-32R-300 | Rhinebeck, New York, United States | Catskill Transportation | No injuries | - |
| 14 Jul 1991 | Robinson R-22B | White Plains, New York, United States | Engle Helicopter, Inc. | No injuries | - |
| 17 Jul 1991 | Cessna 152 | Springwater, New York, United States | State Aerial Farm Statistics | No injuries | - |
| 12 Aug 1991 | Cessna 152 | Bear Mountain, New York, United States | Control Arrow, Inc. | Minor injuries | - |