LAX89DVG07

NTSB accident investigation · Schweizer G-164B · Willows, CA · July 4, 1989

Accident · No injuriesFinal report
Date
July 4, 1989, 09:00 local (17:00 UTC)
Place
Willows, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3627GSchweizer G-164B
Weather
Visual (VMC) · Day
Status
Completed · report March 29, 1991
Report
Approved by Office Director
FAA report
19890704019739A
Case key
26169

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Failure of the connecting rod on #1 cylinder of the aircraft powerplant.

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.

Loss of engine power(partial) - mech failure/malfManeuvering - aerial application
Engine assembly,cylinder - failure,partialCause
In flight collision with terrain/waterDescent - emergency

Analysis

The engine connecting rod (p/n 10992) to the number one cylinder broke at the crankshaft resulting in a loss of engine power while 200 feet AGL. During the forced landing, the aircraft nosed over.

Aircraft

Registration
N3627G
Reported as
Schweizer G-164B
Category
Airplane
Serial number
729B
Airframe hours
4,646
Engine
P&W R-1340-AN-1, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Peter D. Mann & Jean K. Mann, doing business as N
Registered owner
Mann & Sons Ag-Aviation
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · March 5, 1989 · 476 hours before
Departed
WLW · Willows, CA
Airport
WLW · Willows Airport

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
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
9,099 total · 9,099 as pilot in command · 450 in the last 90 days · 70 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 2 knots
Visibility
75 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point -0 °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.

Other investigations on N3627G · 1

Matched to the same aircraft by N-number and date.