NTSB Identification: MIA88IA011.
The docket is stored on NTSB microfiche number 35182.
Scheduled 14 CFR
Incident occurred Thursday, October 15, 1987 in MAYAGUEZ
Probable Cause Approval Date: 07/10/1989
Aircraft: CASA C-212-200, registration: N436CA
Injuries: 16 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE COMMUTER FLT WAS TAXIING TO THE GATE, WHEN THE PLT OBSERVED A FIRE WARNING LIGHT FOR THE NO 2 ENG. THE FIRE BOTTLE WAS DISCHARGED & THE FIRE WAS EXTINGUISHED. AN EXAM REVEALED THAT A FUEL LINE, P/N 3103385-1, HAD BROKEN AND HAD STARTED A FIRE. AN EXAM OF THE FUEL LINE REVEALED T00L MARKS ON THE LINE. A LABORATORY EXAM REVEALED THE LINE HAD FAILED DUE TO FATIGUE & THE FATIGUE HAD ORIGINATED IN THE AREA OF THE TOOL MARKS. THE TOOL MARKS SUGGESTED THAT A CRESCENT WRENCH OR SIMILAR TOOL HAD BEEN USED TO BEND THE LINE IN ORDER TO ALIGN THE LINE WITH THE ATTACH FITTING. THE COMPANY WAS ADVISED OF THE FINDINGS & A COMPANY DIRECTIVE WAS ISSUED TO DISCONTINUE THE PRACTICE.

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

FUEL SYSTEM,LINE..BENT

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

MAINTENANCE,ALIGNMENT..IMPROPER..COMPANY MAINTENANCE PERSONNEL

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

FUEL SYSTEM,LINE..FAILURE,TOTAL

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