NTSB Identification: NYC83LA096.
The docket is stored on NTSB microfiche number 20388.
Accident occurred Thursday, April 14, 1983 in WEST MIFFLIN, PA
Aircraft: MITSUBISHI MU-2B-26, registration: N79AC
Injuries: 4 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.

ACCORDING TO THE PILOT, HE INCREASED THE POWER, AND SUBSEQUENTLY THE AIRSPEED, WHILE ON FINAL APPROACH, TO COMPENSATE FOR STRONG WINDS AND TURBULENCE. THE WIND WAS REPORTED TO BE FROM 150 DEG. AT 18 GUSTING 28 KTS. REPORTEDLY, THE ACFT CROSSED OVER THE THRESHOLD OF RWY 10 AT AN AIRSPEED THAT WAS 30 KTS FASTER THAN NORMAL. THE PLT STATED THE ACFT LANDED HARD ON THE LEFT MAIN GEAR FIRST, THEN BEGAN TO LEAN TO THE LEFT. AT SOME POINT, THE LEFT PROPELLER HIT THE RWY AND SPARKS FLEW. THE PLT STATED THAT HE THEN PULLED UP THE ACFT, RETRACTED THE GEAR, SHUT DOWN BOTH ENGINES AND LANDED GEAR UP. AN EXAM REVEALED THAT THE TIPS OF THE LEFT PROPELLER HAD SHEARED OFF AND PENETRATED THE LEFT TIP TANK. ALSO, THE BELLY, GEAR DOORS AND LANDING GEAR WERE DAMAGED.

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

FLARE..IMPROPER..PILOT IN COMMAND


Contributing Factors

GEAR RETRACTION..PERFORMED..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

WEATHER CONDITION..HIGH WIND


Contributing Factors

GO-AROUND..NOT PERFORMED..PILOT IN COMMAND


Contributing Factors

WHEELS UP LANDING..PERFORMED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..CROSSWIND


Contributing Factors

WEATHER CONDITION..GUSTS

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