NTSB Identification: ATL83AA235.
The docket is stored on NTSB microfiche number 25583.
Accident occurred Tuesday, June 21, 1983 in ATMORE, AL
Aircraft: CESSNA 421A, registration: N2960Q
Injuries: 8 Fatal.

ABOUT 20 MINS AFTER TAKEOFF THE PLT REPORTED THE RIGHT ENG HAD LOST POWER & THE ACFT WOULD NOT MAINTAIN ALT. VECTORS WERE PROVIDED FOR AN EMERGENCY LANDING, BUT THE ACFT CRASHED IN A WOODED AREA ABOUT 3 MI FROM THE ARPT. THERE WAS EVIDENCE THAT THE GEAR & FLAPS HAD BEEN EXTENDED & THE ACFT HAD ENTERED A TURN BEFORE IMPACTING. BOTH PROPS HAD EVIDENCEOF LOW TO MODERATE POWER & NEITHER WAS FEATHERED. AN EXAM REVEALED UNSYMMETRICAL WEAR ON THE BLADES OF THE RIGHT TURBO- CHARGER; ITS THRUST SPACER, PN 406990-9004, WAS WORN & THERE WAS EVIDENCE OF OIL LEAKAGE. THE 13 QT, RIGHT ENG OIL SYS HAD ONLY 6.85 QTS OF OIL REMAINING. BOTH TURBOCHARGERS HAD BEEN INSTALLED DURING AN ANNUAL INSPECTION IN APRIL 1983 & PREVIOUSLY HAD BEEN OVERHAULED. THE ACFT WAS ESTIMATED TO BE 844 LBS OVER ITS MAX WT LIMIT & THE AFT CG LIMIT WAS EXCEEDED BY ABOUT 4.8 INCHES. SIX OF THE PASSENGERS WERE NOT RESTRAINED BY SEAT BELTS. AN ASSOCIATE ESTIMATED THAT THE PLT HAD ONLY 4 TO 6 HRS OF REST IN THE PREVIOUS 3 TO 4 DAYS.

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

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

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

EMERGENCY PROCEDURE..IMPROPER..PILOT IN COMMAND

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

GEAR EXTENSION..PREMATURE..PILOT IN COMMAND

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

AIRSPEED(VMC)..NOT MAINTAINED..PILOT IN COMMAND


Contributing Factors

OBJECT..TREE(S)


Contributing Factors

EXHAUST SYSTEM,TURBOCHARGER..WORN


Contributing Factors

PREFLIGHT PLANNING/PREPARATION..IMPROPER..PILOT IN COMMAND


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

AIRCRAFT WEIGHT AND BALANCE..EXCEEDED..PILOT IN COMMAND


Contributing Factors

MAINTENANCE..IMPROPER..OTHER MAINTENANCE PERSONNEL


Contributing Factors

FLUID,OIL..LEAK



Contributing Factors

FATIGUE..PILOT IN COMMAND



Contributing Factors

EXHAUST SYSTEM,TURBOCHARGER..FAILURE,PARTIAL



Contributing Factors

LACK OF FAMILIARITY WITH AIRCRAFT..PILOT IN COMMAND


Contributing Factors

LOWERING OF FLAPS..PREMATURE..PILOT IN COMMAND

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