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June 5, 1988 · Piper PA-28RT-201T PA-28RT-20 · N2131N
Grand Canyon, AZ
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 5, 1988
Injury Outcomes
1 injury (1 minor injury)
Location
Grand Canyon, AZ
Aircraft
Piper PA-28RT-201T PA-28RT-20
Tail Number
N2131N
Operator
Douglas Cunningham
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
LAX88LA213
FAILURE OF THE AN TEE FITTING, THEREBY ALLOWING THE OIL TO BE PUMPED OVERBOARD CAUSING THE ENGINE FAILURE. THE FAILURE OF THE TEE FITTING WAS CAUSED BY THE TIE WRAP USED TO SECURE THE LINE. THE TIE WRAP PULLED THE OIL LINE AND STRESSED ONE SIDE OF THE TEE FITTING. CONTRIBUTING TO THIS ACCIDENT WAS THE MECHANICS FAILURE TO FOLLOW THE APPROVED PIPER PROCEDURES FOR THE INSTALLATION OF A OIL PRESSURE OPERATED HOBBS METER.
NTSB Probable Cause
FAILURE OF THE AN TEE FITTING, THEREBY ALLOWING THE OIL TO BE PUMPED OVERBOARD CAUSING THE ENGINE FAILURE. THE FAILURE OF THE TEE FITTING WAS CAUSED BY THE TIE WRAP USED TO SECURE THE LINE. THE TIE WRAP PULLED THE OIL LINE AND STRESSED ONE SIDE OF THE TEE FITTING. CONTRIBUTING TO THIS ACCIDENT WAS THE MECHANICS FAILURE TO FOLLOW THE APPROVED PIPER PROCEDURES FOR THE INSTALLATION OF A OIL PRESSURE OPERATED HOBBS METER.
Flight
Event TypeAccident
Event Time10:00 MST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-28RT-201T PA-28RT-20
Tail NumberN2131N
Aircraft CategoryAir
DamageSubstantial
OperatorDouglas Cunningham
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-360-FB · Reciprocating · 200
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 46 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 17 kt, gusting 25 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point19 C
Altimeter30.00 inHg
Observation Time16:45
Weather SourceWFAC