- Date
- July 22, 1991, 12:30 local (18:30 UTC)
- Place
- Salmon, ID
- Injuries
- 4 fatal
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N1573HCessna 177RG
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 4, 1992
- Report
- Approved by Office Director
- FAA report
- 19910722029569A
- Case key
- 41330
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
Improper inflight planning and decision by the pilot, and his failure to maintain sufficient altitude and clearance from mountainous/hilly terrain.
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 departed southbound from the Salmon, Idaho airport after a refueling stop. A witness saw the aircraft enter a canyon south of the airport at low altitude. Subsequently, it collided with the east side of the canyon after turning back toward a northerly direction. During initial impact, the right wingtip & nose of the aircraft collided with a 30 to 35 deg rising slope. There was evidence the aircraft was still angled toward rising terrain when the accident occurred. The accident occurred at an elevation of about 5600 ft, about 11 mi south of the airport. Leading edge gouges & chordwise scratches were noted on the propeller blades. The throttle, mixture & propeller controls were found in the full forward position.
Aircraft
- Registration
- N1573H
- Reported as
- Cessna 177RG
- Category
- Airplane
- Serial number
- 177RG0747
- Engine
- Lycoming IO-360-A1B6D, 200 horsepower, reciprocating
- Damage
- Destroyed
- Fire
- On-Ground
- Flight
- Personal · Part 91
- Operator
- Marshall J. Grosboll
- Registered owner
- Marshall J. Grosboll
- Departed
- SMN · Salmon, ID
- Destination
- K50 · Derby, KS
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 43
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Flight hours
- 370 total · 80 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F, dew point 46 °F
- Altimeter
- 30.00 inHg
- Observed at
- SMN, 12 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.