DEN85LA155

NTSB accident investigation · Piper PA-25-235 · Fillmore, UT · June 9, 1985

Accident · No injuriesLimited investigationFinal report
Date
June 9, 1985, 08:00 local (14:00 UTC)
Place
Fillmore, UT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N7346ZPiper PA-25-235
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850609027579A
Case key
16695

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 power(total) - mech failure/malfManeuvering - aerial application
Accessory drive assy,drive gear - failure,partialCause
Ignition system,magneto - jammedCause
Forced landingDescent - emergency
Nose overLanding - roll
Terrain condition - softFactor
Terrain condition - cropFactor

Analysis

The plt reported the engine failed while he was spraying a corn field, necessitating a straight ahead forced landing. During the landing roll the wheels bogged down in the soft earth and the plane overturned. Subsequent examination of theengine by the plt revealed the dowel pin on the magneto impulse coupler had been sheared off by the main crankshaft drive gear.

Aircraft

Registration
N7346Z
Reported as
Piper PA-25-235
Category
Airplane
Serial number
25-3297
Airframe hours
3,500
Engine
Lycoming O-540-B2B5, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Registered owner
Spanish Fork Flying Service
Airworthiness certificate
Special, Restricted (Special)
Departed
U19 · Fillmore, UT

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
42
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Expired
Seat
Center
Flight hours
10,000 total · 5,000 in this make and model · 150 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

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