NTSB Identification: ATL86IA051.
The docket is stored on NTSB microfiche number 30846.
Scheduled 14 CFR EASTERN AIRLINES, INC.
Incident occurred Monday, December 30, 1985 in ATLANTA, GA
Aircraft: Airbus Industrie A-300 B4-203, registration: N231
Injuries: 169 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.

DURING TAKEOFF INITIAL CLIMB THE AIRCRAFT EXPERIENCED AN UNCONTAINED FAILURE OF THE NO 1 ENGINE. THE PILOT RETURNED TO THE AIRPORT AND LANDED WITHOUT FURTHER INCIDENT. POST INCIDENT EXAMINATION DISCLOSED FOUR BROKEN TURBINE MID FRAME STRUT STUDS. THE FRACTURE SURFACES EXHIBITED FATIGUE SIGNATURES. A PROPOSED STRUD STUD DESIGN IS BEING MANUFACTURED FOR TESTING.

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

TURBINE ASSEMBLY..SEPARATION

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

MAINTENANCE,DESIGN CHANGE..NOT ISSUED..MANUFACTURER

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