NTSB Identification: FTW87FA088.
The docket is stored on NTSB microfiche number 36654.
Accident occurred Monday, March 30, 1987 in MARLIN, TX
Probable Cause Approval Date: 06/07/1989
Aircraft: PIPER PA-28-181, registration: N8191V
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 ACFT HAD BEEN INVOLVED IN PIPELINE PATROL THROUGHOUT ITS HISTORY OF 7490 FLT HRS. JUST BEFORE THE ACDNT, THE ACFT WAS OBSERVED IN STRAIGHT & LVL FLT ALONG A PIPELINE RIGHT-OF-WAY. ACCORDING TO WITNESSES, THE ACFT WAS AT LOW ALT WHEN A WING SEPARATED & THE ACFT PLUNGED TO THE GROUND. THE LEFT WING WAS FND 588' FROM THE MAIN WRECKAGE. AN INVESTIGATION REVEALED IT HAD SEPD AT THE WING ROOT FROM FATIGUE FAILURE. THE FATIGUE HAD ORIGINATED NEAR ONE OF THE OUTBOARD CARRY-THROUGH ATTACHMENT BOLT HOLES.

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

WING,SPAR..FATIGUE

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