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NTSB accident investigation · Grumman-Schweizer G-164A · Springfield, CO · August 4, 1987

Accident · No injuriesFinal report
Date
August 4, 1987, 13:45 local (19:45 UTC)
Place
Springfield, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N8953HGrumman-Schweizer G-164A
Weather
Visual (VMC) · Day
Status
Completed · report October 25, 1988
Report
Approved by Office Director
FAA report
19870804045099A
Case key
17065

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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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(total) - nonmechanicalManeuvering - aerial application
Fluid,fuel - contaminationCause
Aircraft service - improperCause
Aircraft preflight - inadequatePilot in commandCause
Forced landingDescent - emergency
Nose overLanding - roll
Terrain condition - softFactor
Terrain condition - wetFactor
Terrain condition - rough/unevenFactor

Analysis

The plt rprtd the eng lost pwr drg an aerial application flt & the acft nosed over drg a forced lndg in a soft, wet, terraced fld. There had been hvy rain on the previous day. An investigation revealed the acft had been refueled from a fuel tank mounted on a pickup truck. An exam of the acft revealed water contamination in the acft fuel system.

Aircraft

Registration
N8953H
Reported as
Grumman-Schweizer G-164A
Category
Airplane
Serial number
1590
Airframe hours
915
Engine
P&W R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
W.L. Mcpherson, doing business as Valley Aviation
Registered owner
W. L. Mcpherson
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · June 10, 1987

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
50
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
10,000 total · 200 in this make and model · 200 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
45° at 4 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.