NTSB Identification: DCA87MA031.
The docket is stored on NTSB microfiche number 35569.
Accident occurred Tuesday, May 12, 1987 in WEST MIFFLIN, PA
Probable Cause Approval Date: 11/29/1988
Aircraft: LEARJET 35A, registration: N100EP
Injuries: 2 Fatal.

NTSB investigators traveled in support of this investigation and used data obtained from various sources to prepare this aircraft accident report.

THE COPLT (DUAL STUDENT) WAS TO GET A PROF CHECK ON THE 1ST LEG OF THE FLT WITH A SIMULATED SINGLE ENG PWR LOSS ON TKOF.ACCORDING TO WITNESSES, THE TKOF WAS NORMAL UNTIL LIFT-OFF APRX 3200' DOWN THE RWY; BUT AFTER LIFT-OFF, THE ACFT CLBD ONLY ABOUT 50' & DIDN'T SEEM TO ACCELERATE. THEY RPRTD THE NOSE PITCHED UP & THE ACFT WENT IN A STEEP BANK ATTITUDE NR THE DEP END OF THE RWY. SUBSEQUENTLY, IT DSCNDD & CRASHED IN WOODED TERRAIN IN A RGT WING DOWN, NOSE HI ATTITUDE. A BY- STANDER TRIED TO GET IN THE ACFT TO RESCUE THE PLTS, BUT THE DOOR WAS JAMMED & HE WAS UNABLE TO BREAK THE CABIN WINDOWS.A FIRE ERUPTED & ENGULFED THE ACFT. DUE TO ROUGH TERRAIN, THERE WAS A DELAY IN GETTING FIRE FIGHTING EQUIPMENT TO THE ACDNT SITE. NO PREIMPACT MECHANICAL FAILURES WERE FND. THE GEAR, FLAPS & SPOILERS WERE FND IN THE RETRACTED PSN. FOR TKOF, THE FLAPS SHOULD HAVE BEEN EXTD TO THE 8 OR 20 DEG POSITION. THE STALL SPEEDS FOR 20 DEG, 8 DEG & NO FLAPS WERE 104.5, 109.0 & 119.5 KTS, RESPECTIVELY. THE CAPT WAS AN FAA DESIGNATED FLT EXAMINER & A CERTIFIED FLT INSTRUCTOR (CFI).

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

RAISING OF FLAPS..PREMATURE..COPILOT/SECOND PILOT

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

AIRSPEED..INADEQUATE

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

STALL..INADVERTENT

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

SUPERVISION..INADEQUATE..PILOT IN COMMAND(CFI)

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