FTW88LA002

NTSB accident investigation · Mooney M-20-J · Kerrville, TX · October 9, 1987

Accident · No injuriesLimited investigationFinal report
Date
October 8, 1987, 19:25 local (Oct 9, 1987, 00:25 UTC)
Place
Kerrville, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N57257Mooney M-20-J
Weather
Visual (VMC) · Day
Status
Completed · report February 24, 1989
Report
Approved by Office Director
FAA report
19871008060089A
Case key
22581

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/malfDescent - normal
Engine assembly,connecting rod - failure,totalCause
Engine assembly,connecting rod - overtemperatureCause
Fluid,oil - starvationCause
Forced landingDescent - emergency
In flight collision with objectLanding - flare/touchdown
Object - signFactor
Terrain condition - none suitableFactor
Hard landingLanding - flare/touchdown

Analysis

Acft was substantially damaged when it collided with a road sign and the grnd during an off arpt emergency lndg following a complete eng failure during descent. Plt stated that about 20 mins out from his dest, the oil press decreased into the yellow arc, but oil temp and cyl head temp remained normal. During the descent, oil press decreased into the red and the eng started vibrating. Shortly thereafter the eng seized. Investigation revealed that the #4 piston connecting rod had separated due to oil starvation, resulting in severe internal damage to the eng. Two qts of heavy, black oil were drained frm the eng. The cause of the oil starvation was not determined during the investigation. The plts stated that they had departed 4.5 hrs prior to the acdt with slightly over 5 qts of oil in the eng. Eng had been operated a total of 320 hrs.

Aircraft

Registration
N57257
Reported as
Mooney M-20-J
Category
Airplane
Serial number
241605
Airframe hours
320
Engine
Lycoming IO-360, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Lawrence W. Moulton
Registered owner
Moulton, Lawrence W
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 20, 1986 · 20 hours before
Departed
TUS · Tucson, AZ
Destination
ERV
Flight plan
VFR

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
36
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
234 total · 56 in this make and model · 123 as pilot in command · 34 in the last 90 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 7 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 50 °F
Altimeter
30.00 inHg
Observed at
SAT, 45 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.