SEA93LA078

NTSB accident investigation · Schweizer G-164B-600 · Quincy, WA · March 18, 1993

Accident · No injuriesLimited investigationFinal report
Date
March 17, 1993, 16:10 local (Mar 18, 1993, 00:10 UTC)
Place
Quincy, WA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7503LSchweizer G-164B-600
Weather
Visual (VMC) · Not reported
Status
Completed · report October 13, 1993
Report
Approved by Office Director
FAA report
19930317005569A
Case key
42999

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

Unsuitable terrain encountered during a forced landing after an engine cylinder assembly had separated. Factors include a snowbank.

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/malfCruise - normal
Engine assembly,cylinder - separationCause
Forced landingDescent - emergency
Nose overLanding - roll
Terrain condition - snowbankFactor
Unsuitable terrain or takeoff/landing/taxi area - encounteredCause

Analysis

The pilot was returning to his agricultural landing strip after applying dry fertilizer on a field. About a mile from the runway, the engine started running rough. Within a half mile of the airport, the engine roughness worsened to the point of total failure. The aircraft would no longer maintain altitude, so the pilot attempted a forced landing in an alfalfa field adjacent to the runway. After touchdown, the aircraft rolled into a snowdrift and nosed over. Investigation revealed that the number seven cylinder had separated from the engine crankcase.

Aircraft

Registration
N7503L
Reported as
Schweizer G-164B-600
Category
Airplane
Serial number
826B
Airframe hours
551
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Stephans Flying Service
Registered owner
Mid Continent Air Service
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · December 23, 1992 · 15 hours before

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
38
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
7,505 total · 7,200 in this make and model · 7,505 as pilot in command · 16 in the last 90 days · 16 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Not reported
Wind
300° at 6 knots
Visibility
5 statute miles
Lowest ceiling
5,000 ft overcast

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 N7503L · 2

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