NTSB Identification: CHI87LA218.
The docket is stored on NTSB microfiche number 35188.
Accident occurred Saturday, September 19, 1987 in GRAYSLAKE, IL
Probable Cause Approval Date: 01/11/1989
Aircraft: PIPER PA-28RT-201T, registration: N8315S
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 LANDED OFF THE RIGHT SIDE OF THE RUNWAY ON A DARK NIGHT WHEN THE PILOT WAS UNABLE TO IDENTIFY THE INTENDED LANDING RUNWAY. THE AIRCRAFT LANDED IN SOFT TURF AND DURING SUBSEQUENT LOSS OF CONTROL, TURNED RIGHT AND NOSED DOWN INTO A RAVINE. THE PILOT STATED THAT THERE WERE ONLY THREE RUNWAY LIGHTS ILLUMINATED AND THAT HIS LANDING LIGHT DID NOT HELP IN FINDING THE RUNWAY. HE ALSO STATED THAT HIS DECISION MAKING PROCESS WAS DEGRADED AS A RESULT OF FATIGUE AND STRESS CREATED WHEN HE INITIALLY SPENT ABOUT HALF AN HOUR TRYING TO LOCATE THE AIRPORT.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

PROPER ALIGNMENT..NOT ATTAINED..PILOT IN COMMAND

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

UNSUITABLE TERRAIN OR TAKEOFF/LANDING/TAXI AREA..SELECTED..PILOT IN COMMAND


Contributing Factors

TERRAIN CONDITION..RAVINE


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

AIRPORT FACILITIES,RUNWAY EDGE LIGHTS..FAILURE,PARTIAL


Contributing Factors

MENTAL PERFORMANCE OVERLOAD..PILOT IN COMMAND


Contributing Factors

VISUAL/AURAL PERCEPTION..PILOT IN COMMAND

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