NTSB Identification: CHI86LA228.
The docket is stored on NTSB microfiche number 32142.
Nonscheduled 14 CFR
Accident occurred Wednesday, September 17, 1986 in ST. PAUL, MN
Aircraft: PIPER PA-31-310, registration: N707HB
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.

AT THE END OF AN UNEVENTFUL FLIGHT THE PILOT LOWERED THE LANDING GEAR AND NOTED THREE GEAR DOWN INDICATOR LIGHTS. UPON LANDING ROLLOUT THE NOSE GEAR COLLAPSED. AN INSPECTION FOLLOWING THE ACCIDENT REVEALED THAT A HYDRAULIC LEAK WAS PRESENT NEAR THE HYDRAULIC POWER PACK. THE HYDRAULIC RESERVOIR (WHICH NORMALLY HOLDS 54 OZ OF FLUID) WAS REFILLED WITH 42 OZ OF FLUID. THERE IS NO HYDRAULIC FLUID LEVEL INDICATOR IN THE COCKPIT OF THIS AIRCRAFT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE,INSPECTION..INATTENTIVE..COMPANY MAINTENANCE PERSONNEL


Contributing Factors

FLUID,HYDRAULIC..LOSS,PARTIAL


Contributing Factors

FLUID,HYDRAULIC..LEAK

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