LAX97LA137

NTSB accident investigation · Piper PA-28R-200 · Continental, AZ · March 31, 1997

Accident · Serious injuriesLimited investigationFinal report
Date
March 31, 1997, 08:39 local (15:39 UTC)
Place
Continental, AZ
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N2226TPiper PA-28R-200
Weather
Visual (VMC) · Day
Status
Completed · report October 14, 1997
Report
Approved by Office Director
FAA report
19970331010179A
Case key
29755

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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Probable cause

loss of engine power as a result of detonation in the number 2 cylinder for undetermined reasons. A factor in the accident was the unsuitable nature of the forced landing area.

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
Engine assembly,cylinder - overtemperatureCause
Lubricating system,oil port/passage,internal - restrictedCause
Engine assembly,bearing - failureCause
Engine assembly,connecting rod bolt - seizedCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Terrain condition - rough/uneven

Analysis

The airplane lost engine oil pressure followed by seizure of the engine. The flight instructor attempted to glide to a nearby private strip but had insufficient altitude and elected to land gear up on rough level terrain. Evidence of detonation was found in the number 2 cylinder. The number 2 piston was damaged and aluminum from the piston restricted the flow of oil. The number 2 piston rod bearing failed as a result of loss of lubrication. One of the bolts to the number 2 piston rod cap broke, jamming the rotation of the crankshaft. The reason for the detonation in the number 2 cylinder could not be determined.

Factual narrative

On March 31, 1997, at 0839 hours mountain standard time, a Piper PA-28R-200, N2226T, lost engine power and landed gear up off the airport near Continental, Arizona. The airplane was being operated as an instructional flight by Leading Edge Aviation, Tucson, Arizona. The airplane was substantially damaged. The certified flight instructor received minor injuries and the certificated commercial pilot/student received serious injuries. The local flight originated in Tucson about 0820. Visual meteorological conditions prevailed at the time.

The pilots reported the airplane lost engine oil pressure followed by seizure of the engine. The flight instructor attempted to glide to a nearby private landing strip but had insufficient altitude and elected to land gear up on rough level terrain.

After the accident, the engine was disassembled and examined by the Federal Aviation Administration (FAA) Airworthiness Inspector. According to the FAA, there was evidence of detonation in the number 2 cylinder. The number 2 piston was found damaged, and aluminum from the piston was found in the engine oil screen restricting the flow of oil. The number 2 piston rod bearing exhibited evidence of heat distress and appeared to the inspector to have failed as a result of loss of lubrication. One of the bolts to the number 2 piston rod cap was found broken, jamming the rotation of the crankshaft. According to the FAA inspector, the reason for the detonation in the number 2 cylinder could not be determined.

Aircraft

Registration
N2226T
Reported as
Piper PA-28R-200
Category
Airplane
Serial number
28R-7135171
Airframe hours
5,480
Engine
Lycoming IO-360-C1C, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Leading Edge Aviation, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 27, 1997 · 67 hours before
Departed
TUS · Tucson, 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
26
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,782 total · 134 in this make and model · 1,728 as pilot in command · 255 in the last 90 days · 92 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 10 knots
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
61 °F, dew point 46 °F
Altimeter
30.00 inHg
Observed at
TUS

FAA reports on this event · 1

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