NTSB Identification: MIA89IA016.
The docket is stored on NTSB microfiche number 37190.
Scheduled 14 CFR operation of AMERICAN AIRLINES, INC.
Incident occurred Monday, October 24, 1988 in SAN JUAN
Probable Cause Approval Date: 01/25/1990
Aircraft: AIRBUS INDUSTRIE A-300-600R, registration: N70054
Injuries: 2 Minor,272 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 ACFT DEPARTED RUNWAY 8 AT 1810 AST. THE PLT REPORTED A RT ENG FIRE AND DECLARED AN EMERGENCY. THE ACFT WAS LANDED AT 1815 AST, TURNED OFF THE RUNWAY, AND ALL THE PASSENGERS WERE EVACUATED VIA THE SLIDES. ACCORDING TO MAINTENANCE PERSONNEL IN SAN JUAN, THE #2 HIGH PRESSURE BLEED VALVE IN THE RIGHT ENGINE HAD BEEN REPLACED PRIOR TO DEPARTURE. POST INCIDENT EXAMINATION OF THE BLEED VALVE REVEALED THAT THE BAND CLAMPS THAT SECURE THE BLEED VALVE TO THE ENGINE WERE UNDERTORQUED DURING INSTALLATION, ALLOWING THE PREMATURE SEPARATION OF THE BLEED VALVE.

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

BLEED AIR SYSTEM,VALVE..UNDERTORQUED

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

MAINTENANCE,REPLACEMENT..IMPROPER..COMPANY MAINTENANCE PERSONNEL

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