NTSB Identification: FTW84IA160.
The docket is stored on NTSB microfiche number 24859.
Scheduled 14 CFR AMERICAN AIRLINES, INC.
Incident occurred Saturday, March 10, 1984 in DFW AIRPORT, TX
Aircraft: BOEING 727-23, registration: N1993
Injuries: 41 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 CREW STATED THAT WHILE AT FL370, THE CABIN ALT BEGAN TO CLIMB. AN EMERGENCY DESCENT WAS INITIATED & AFTER LANDING THE PASSENGERS DEPLANED IN A NORMAL MANNER. INVESTIGATION REVEALED A 9X18' HOLE IN THE FUSELAGE ABOUT 3 FT FOWARD OF THE ACFT CARGO DOOR. METALLURGICAL EXAMINATION REVALED THAT THE CRACK HAD OCCURRED AS A RESULT OF FATIQUE WHICH ORGINATED IN SCRAPE MARKS ON THE INSIDE OF THE SKIN IMMEDIATELY ADJACENT TO THE ORIGIN OF THE CRACK.

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

FUSELAGE,SKIN..FATIGUE

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

FUSELAGE,SKIN..FAILURE,PARTIAL

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