- Date
- June 23, 1989, 20:30 local (Jun 24, 1989, 03:30 UTC)
- Place
- Colfax, WA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N8974HGrumman-Schweizer G-164A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 25, 1992
- Report
- Approved by Office Director
- FAA report
- 19890623017499A
- Case key
- 41039
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 installation of the cylinder assembly. The terrain was not suitable for a successful forced landing.
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
While on an aerial application flight, the acft engine quit. The aircraft impacted rough terrain on forced landing and nosed over. Examination of the engine revealed loose mounting nuts on the no 4 cylinder.
Aircraft
- Registration
- N8974H
- Reported as
- Grumman-Schweizer G-164A
- Category
- Airplane
- Serial number
- 1347
- Engine
- P&W R-985-AN1, 450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Fender, Darrell L.
- Airworthiness certificate
- Special, Restricted (Special)
- Departed
- S94 · Colfax, WA
- Destination
- S94 · Colfax, WA
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
- 32
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Flight hours
- 4,000 total · 1,800 in this make and model · 200 in the last 90 days · 70 in the last 30 days · 8 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 30 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F, dew point 50 °F
- Altimeter
- 30.00 inHg
- Observed at
- PUW, 14 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.
Other investigations on N8974H · 3
Matched to the same aircraft by N-number and date.