NTSB Identification: ATL87FA123.
The docket is stored on NTSB microfiche number 34210.
Nonscheduled 14 CFR
Accident occurred Thursday, April 23, 1987 in WILMINGTON, NC
Probable Cause Approval Date: 08/31/1988
Aircraft: SWEARINGEN SA-226TC, registration: N505LB
Injuries: 2 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 RIGHT ENGINE FAILED DURING TAKEOFF IMMEDIATELY AFTER ROTATION 3000' DOWN THE 7,002' RWY 16. THE PLT CONTINUED THE FLT AND THE LANDING GEAR REMAINED EXTENDED. THE UNAUTHORIZED PLT RATED PAX MADE XMISSIONS TO THE TOWER. WITNESSES RPTED THAT THE ACFT REACHED APPROX. 150' THEN DESCENDED INTO TREES 20 DEGREES TO THE RIGHT OF RWY CENTERLINE AND 3,000' SOUTH OF THE ARPT. THE PRE- 1979 3RD STAGE STATOR ASSY IN THE RIGHT ENGINE DID NOT HAVE THE LATEST MANUFACTURE WELDING PROCESS/INSPECTION AND FAILED CAUSING THE UNCONTAINED TURBINE FAILURE. INSTRUMENTS IN THE WRECKAGE INDICATED THAT AN UNDETERMINABLE LOSS OF ELECTRICAL POWER OCCURRED AT THE TIME OF ENGINE FAILURE. PERFORMANCE DATA INDICATED THAT A SAFE LANDING COULD HAVE BEEN MADE ON THE REMAINING RWY PAST THE POINT OF ENGINE FAILURE.

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

IN-FLIGHT PLANNING/DECISION..POOR..PILOT IN COMMAND

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

EMERGENCY PROCEDURE..NOT FOLLOWED..PILOT IN COMMAND

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

ALL AVAILABLE RUNWAY..NOT USED..PILOT IN COMMAND



Contributing Factors

TURBINE ASSEMBLY,NOZZLE RETENTION..INADEQUATE


Contributing Factors

OBJECT..TREE(S)


Contributing Factors

ACFT/EQUIP,INADEQUATE DESIGN..MANUFACTURER


Contributing Factors

TURBINE ASSEMBLY,TURBINE WHEEL..BURST


Contributing Factors

PRESSURE INDUCED BY OTHERS..PILOT IN COMMAND


Contributing Factors

ELECTRICAL SYSTEM..UNDETERMINED

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