DEN85LA059

NTSB accident investigation · Piper PA-18-150 · Rawlins, WY · January 4, 1985

Accident · Minor injuriesLimited investigationFinal report
Date
January 4, 1985, 14:40 local (21:40 UTC)
Place
Rawlins, WY
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3575ZPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850104001159A
Case key
16623

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/malfCruise - normal
Ignition system,magneto - wornCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding - flare/touchdown

Analysis

The acft lost eng pwr and was substantially damaged during an off arpt energency landing. The purpose of the flt was to look for coyotes. The post accident eng exam revealed that 9 consecutive teeth on the left magneto drive gear were ground off. This allowed the spark plugs energized by the left magneto to fire or spark out of proper sequence.

Aircraft

Registration
N3575Z
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7364
Airframe hours
2,186
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gary Loose
Airworthiness certificate
Standard, Normal

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
33
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
18 °F

FAA reports on this event · 1

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