- Date
- December 1, 1991, 18:55 local (Dec 2, 1991, 01:55 UTC)
- Place
- Missoula, MT
- Injuries
- 18 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N26932Swearingen SA-227-AC
- Weather
- Instrument (IMC) · Night/dark
- Status
- Completed · report April 23, 1993
- Report
- Approved by Office Director
- FAA report
- 19911201060279A
- Case key
- 41614
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's inability to maintain directional control during takeoff. Factors include a dragging brake.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The pilot was unable to maintain directional control as the aircraft drifted off the left side of the departure runway, which had an accumulation of snow. The inability to maintain directional control at high speed was consistent with aa dragging brake on the left side of the aircraft.
Aircraft
- Registration
- N26932
- Reported as
- Swearingen SA-227-AC
- Category
- Airplane
- Serial number
- AC660
- Airframe hours
- 11,645
- Engine
- Garrett TPE 331-11U, 1,050 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Horizon Air
- Registered owner
- Mcdonnell Douglas Finance Corp
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Continuous airworthiness · November 22, 1991 · 74 hours before
- Destination
- GEG · Spokane, WA
- Flight plan
- IFR
- Airport
- MSO · Johnson-Bell, runway 29, 9,499 × 150 ft, asphalt
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 31
- Certificates
- Commercial, Airline transport
- Airplane ratings
- Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 6,800 total · 2,000 in this make and model · 6,000 as pilot in command · 174 in the last 90 days · 72 in the last 30 days · 8 in the last 24 hours
Weather
- Conditions
- Instrument (IMC) · Night/dark
- Wind
- 220° at 5 knots
- Visibility
- 1 statute miles
- Lowest ceiling
- 800 ft
- Temperature
- 27 °F, dew point 25 °F
- Altimeter
- 29.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.