SEA87LA056

NTSB accident investigation · Cessna 150 · Mountain Home, ID · February 12, 1987

Accident · No injuriesLimited investigationFinal report
Date
February 12, 1987, 16:00 local (23:00 UTC)
Place
Mountain Home, ID
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N50724Cessna 150
Weather
Visual (VMC) · Day
Status
Completed · report March 21, 1988
Report
Approved by Office Director
FAA report
19870212002669A
Case key
40592

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) - mech failure/malfTakeoff - initial climb
Engine assembly,cylinder - brittle fractureCause
Maintenance,major repair - improperOther maintenance personnelCause
Forced landingLanding
Nose overLanding - roll
Terrain condition - softCause

Analysis

Acft lost pwr on init climb from takeoff, necessitating a forced landing in an open field. Acft nosed over inverted after touchdown in soft terrain. Investigation revealed #3 cylinder rocker arm bosses had broken. Inspection showed, during previous repair, attempt to stake bushings with center punch tool. Fractures originated at these tool marks.

Aircraft

Registration
N50724
Reported as
Cessna 150
Category
Airplane
Serial number
15069510
Airframe hours
5,225
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Kim W. Wood
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 25, 1986 · 126 hours before
Departed
U76 · Mountain Home, ID

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
32
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Right
Flight hours
327 total · 150 in this make and model · 285 as pilot in command · 49 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 7 knots
Visibility
25 statute miles
Lowest ceiling
8,000 ft broken
Temperature
55 °F, dew point 36 °F
Altimeter
30.00 inHg
Observed at
MUO, 8 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.