NTSB Identification: LAX91FA124.
The docket is stored on NTSB microfiche number 44823.
Nonscheduled 14 CFR
Accident occurred Thursday, March 07, 1991 in PALM SPRINGS, CA
Probable Cause Approval Date: 07/13/1993
Aircraft: PIPER PA-32R-300, registration: N711PE
Injuries: 1 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PILOT REPORTED FOR WORK AT 0200 HOURS AND FLEW ON A LEG OF A CARGO FLIGHT FROM BURBANK, CA TO PHOENIX, AZ. HE WENT TO A COMPANY APARTMENT FOR CREW REST ARRIVING THERE AT ABOUT 0600-0630. HE GOT ABOUT 5 HOURS SLEEP, WAKING AT ABOUT 1200 HOURS. HE FLEW THE RETURN LEG OF THE OPERATION, TAKING OFF AT 2055 HOURS. AT 2230 HOURS, AFTER MAINTAINING A CONSTANT AIRSPEED, HEADING, AND ALTITUDE, HE COLLIDED WITH A MOUNTAIN. THE MOUNTAIN WAS ABOUT 10 NAUTICAL MILES SOUTH OF HIS USUAL COURSE. NO EVIDENCE COULD BE FOUND TO INDICATE THE PILOT ATTEMPTED TO AVOID COLLIDING WITH THE MOUNTAIN. THE AIRCRAFT AND ALL COMPONENTS WERE EXAMINED, WITH NO DEFICIENCIES BEING NOTED. ANOTHER PILOT AT THE COMPANY APARTMENT REPORTED THAT A BOX OF 'DIMETAPP' DECONGESTION PILLS WERE ON THE PILOT'S SHAVING KIT AND THAT TWO PILLS WERE MISSING.

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

INCAPACITATION OF THE PILOT DUE TO INADEQUATE SLEEP.

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