LAX87DVW01

NTSB accident investigation · North American P51D · Ashfork, AZ · April 3, 1987

Accident · Minor injuriesFinal report
Date
April 3, 1987, 09:00 local (16:00 UTC)
Place
Ashfork, AZ
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N1451DNorth American P51D
Weather
Visual (VMC) · Day
Status
Completed · report February 17, 1989
Report
Approved by Office Director
Case key
25351

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
Engine assembly,bearing - failure,totalCause
Engine accessories - disconnected
Forced landingDescent - emergency
Emergency procedure - improperPilot in commandFactor
Gear extension - not performed
In flight collision with objectDescent - emergency
Terrain condition - high obstruction(s)Factor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The north American P-51D experienced a total loss of engine power after cruising at 10,000 feet MSL for 45 minutes. Attempts to restart the engine were unsuccessful. The aircraft collided with some trees prior to coming to rest in an open field. The landing gear was not extended prior to the forced landing. The pilot reported that the RPM read zero even though the engine was windmilling. Tear down of the engine revealed a failed bearing on the vertical accessory drive shaft. The failure allowed the shaft to shift upwards disengaging the gears. The vertical shaft drives the majority of the accessories (mags,pumps,tach,etc.).

Aircraft

Registration
N1451D
Reported as
North American P51D
Category
Airplane
Serial number
44-74446-A
Airframe hours
1,788
Engine
Packard V 1650, 1,490 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Michael Clarke
Airworthiness certificate
Special, Limited (Special)
Last inspection
Annual · April 12, 1987 · 37 hours before
Departed
PRC · Prescott, AZ

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
49
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
1,880 total · 551 in this make and model · 1,608 as pilot in command · 38 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
70 °F
Altimeter
30.00 inHg

Other investigations on N1451D · 3

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