- Date
- August 12, 1991, 07:00 local (14:00 UTC)
- Place
- Wasco, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4663Grumman G-164
- Weather
- Visual (VMC) · Dawn
- Status
- Completed · report April 8, 1993
- Report
- Approved by Office Director
- FAA report
- 19910812035579A
- Case key
- 27333
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
A total loss of engine power due to a fracture of the camshaft and the subsequent forced landing into a soft field.
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 of an agricultural aircraft nosed over during a forced landing after a loss of engine power during an aerial application. An examination of the engine revealed that the camshaft had fractured. The engine was overhauled 1100 hours prior to the accident. Total time on the time engine was about 4218 hours.
Aircraft
- Registration
- N4663
- Reported as
- Grumman G-164
- Category
- Airplane
- Serial number
- 1078
- Airframe hours
- 5,423
- Engine
- P&W R1340, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Jack R. James
- Registered owner
- Merle D. Hallmark
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · August 26, 1988
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
- 62
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Center
- Flight hours
- 18,000 total · 4,000 in this make and model · 150 in the last 90 days · 50 in the last 30 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Dawn
- Wind
- 330° at 2 knots
- Visibility
- 7 statute miles
- Lowest ceiling
- None
- Temperature
- 88 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.