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NTSB Report
July 5, 1989 · Piper PA-16 · N5295H
Minot, ND
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 5, 1989
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Minot, ND
Aircraft
Piper PA-16
Tail Number
N5295H
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
DEN89FA155
AS THE PLT TURNED ON FINAL APCH TO LND, HE HEARD A 'THUD,' THEN THE ACFT ENTERED AN UNCONTROLLED LEFT TURN. AFTER TURNING ABOUT 360 DEG, IT IMPACTED THE GROUND IN A LEFT WING LOW, NOSE LOW ATTITUDE. AN INVESTIGATION REVEALED A FAILUREOF THE AIRFRAME TUBING AT THE LOWER FORWARD DOOR FRAME. THE FAILURE WAS IN THE AREA OF A CONGLOMERATE WELD WHERE THE TUBING WAS PART OF THE DOOR FRAME, FIRE WALL/ENGINE MOUNT, & RIGHT FORWARD LIFT STRUT SUPPORT. AN EXAM REVEALED THE TUBING HAD SEPARATED PRIOR TO IMPACT. APRX 3/4 OF THE FRACTURE WAS THE RESULT OF CORROSION; THE REMAINING FRACTURE WAS FROM OVERLOAD, BUT NOT DUE TO IMPACT. WITH THIS FAILURE, THE LEADING EDGE OF THE RIGHT WING WOULD TWIST UPWARD & THE ENGINE (WITH POWER) WOULD MOVE UP & TO THE LEFT. PIPER SERVICE BULLETING #819, SUBJECT: FUSELAGE DOOR FRAME TUBE CORROSION, DATED 2/28/86, ADDRESSED THE HAZARD OF CORROSION IN THIS AREA.
NTSB Probable Cause
FAILURE OF THE AIRFRAME TUBING (LONGERON) AT THE LOWER FORWARD DOOR FRAME DUE TO CORROSION. A CONTRIBUTING FACTOR WAS FAILURE OF MAINTENANCE PERSONNEL TO COMPLY WITH SERVICE BULLETIN #819.
Full Narrative
AS THE PLT TURNED ON FINAL APCH TO LND, HE HEARD A 'THUD,' THEN THE ACFT ENTERED AN UNCONTROLLED LEFT TURN. AFTER TURNING ABOUT 360 DEG, IT IMPACTED THE GROUND IN A LEFT WING LOW, NOSE LOW ATTITUDE. AN INVESTIGATION REVEALED A FAILUREOF THE AIRFRAME TUBING AT THE LOWER FORWARD DOOR FRAME. THE FAILURE WAS IN THE AREA OF A CONGLOMERATE WELD WHERE THE TUBING WAS PART OF THE DOOR FRAME, FIRE WALL/ENGINE MOUNT, & RIGHT FORWARD LIFT STRUT SUPPORT. AN EXAM REVEALED THE TUBING HAD SEPARATED PRIOR TO IMPACT. APRX 3/4 OF THE FRACTURE WAS THE RESULT OF CORROSION; THE REMAINING FRACTURE WAS FROM OVERLOAD, BUT NOT DUE TO IMPACT. WITH THIS FAILURE, THE LEADING EDGE OF THE RIGHT WING WOULD TWIST UPWARD & THE ENGINE (WITH POWER) WOULD MOVE UP & TO THE LEFT. PIPER SERVICE BULLETING #819, SUBJECT: FUSELAGE DOOR FRAME TUBE CORROSION, DATED 2/28/86, ADDRESSED THE HAZARD OF CORROSION IN THIS AREA.
Flight
Event TypeAccident
Event Time20:01 MDT
Nearest AirportMinot Intl (0nm N)
Runway13
Runway Length7493 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA-16
Tail NumberN5295H
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-235-C1 · Reciprocating · 108
Seats4
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind140° @ 7 kt
Visibility30 sm
CeilingBroken clouds 9000 ft
Temperature / Dew Point63 F
Altimeter29.00 inHg
Observation Time02:03
Weather SourceWFAC