FTW88DRD17

NTSB accident investigation · Schweizer G-164A · Mangham, LA · August 14, 1988

Accident · No injuriesFinal report
Date
August 14, 1988, 14:00 local (19:00 UTC)
Place
Mangham, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7234Schweizer G-164A
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 1989
Report
Approved by Office Director
FAA report
19880814032959A
Case key
22501

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

On this page

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 powerManeuvering
Engine assembly,crankshaft - fatigueCause
Engine assembly,crankshaft - crackedCause
Propeller system/accessories - vibrationFactor
Propeller system/accessories,blade - fractured
Forced landingDescent - emergency
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - high vegetationFactor
Terrain condition - grassFactor
Terrain condition - rough/unevenFactor

Analysis

The ag airplane was spraying cotton when the engine started to vibrate. Pilot pulled airplane up and vibration was so bad power had to be reduced. Pilot made a forced landing in a muddy field. The left wing caught in tall grass and airplane cartwheeled. Pilot stated he found propeller broken off with evidence of pre-existing crack in prop shaft.

Aircraft

Registration
N7234
Reported as
Schweizer G-164A
Category
Airplane
Serial number
909
Airframe hours
4,335
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 91
Operator
Bill Holloway
Registered owner
Holloway, Bill
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 16, 1988 · 108 hours before
Departed
NONE

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
41
Certificates
Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
7,200 total · 3,710 in this make and model · 6,420 as pilot in command · 130 in the last 90 days · 45 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 77 °F
Altimeter
30.00 inHg
Observed at
MLU, 13 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 N7234 · 2

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