NTSB Identification: CHI88LA043.
The docket is stored on NTSB microfiche number 37561.
Accident occurred Sunday, January 03, 1988 in STANLEY, WI
Probable Cause Approval Date: 09/25/1989
Aircraft: PIPER PA-22, registration: N863A
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.THE AIRCRAFT WAS IN CRUISE WHEN THE OIL PRESSURE DROPPED AND OIL COVERED THE WINDSCREEN. A FORCED LANDING WAS EXECUTED. THE AIRCRAFT STRUCK A SNOW COVERED DITCH AND FLIPPED OVER. INSPECTION REVEALED THAT THE ENGINE BREATHER TUBE WAS FROZEN OVER. THE BREATHER TUBE WAS AN UNAPPROVED INSTALLATION OF A GARDEN HOSE BY UNKNOWN PERSONS.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
LUBRICATING SYSTEM,OIL TUBING..FROZEN
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
LUBRICATING SYSTEM..LEAK
Contributing Factors
LUBRICATING SYSTEM,OIL TUBING..IMPROPER
Contributing Factors
TERRAIN CONDITION..HIDDEN OBSTRUCTION(S)
Contributing Factors
TERRAIN CONDITION..DITCH
Contributing Factors
MAINTENANCE,INSTALLATION..IMPROPER..OTHER MAINTENANCE PERSONNEL
Contributing Factors
TERRAIN CONDITION..FROZEN
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