NTSB Identification: ATL89FA054.
The docket is stored on NTSB microfiche number 38596.
Accident occurred Friday, December 09, 1988 in ALCOA, TN
Probable Cause Approval Date: 03/26/1990
Aircraft: AERO COMMANDER 720, registration: N120G
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.

AFTER ENCOUNTERING ICING CONDITIONS IN FLIGHT AND EXPERIENCING PROBLEMS MAINTAINING ALTITUDES AND HEADINGS, THE PILOT ELECTED TO DIVERT FROM HIS PLANNED DESTINATION OF DAYTON, OH TO KNOXVILLE, TN. WHILE ON FINAL APPROACH AFTER DESCENDING 1300 FT BELOW MINIMUM PROCEDURE TURN ALTITUDE FOLLOWED BY BEING TOLD THE AIRCRAFT WAS WELL ABOVE THE GLIDESLOPE, ATC INSTRUCTED THE PILOT TO MAINTAIN 3000 FT. SHORTLY THEREAFTER, ATC REPORTED THE MODE C INDICATED 1900. THE PILOT RESPONDED WITH 'ENGINE QUIT'. THE AIRCRAFT CRASHED IN A PASTURE ABOUT 1 MILE FROM THE AIRPORT. THE INVESTIGATION REVEALED THAT THE AIRCRAFT WAS NOT EQUIPPED TO OPERATE IN ICING CONDITIONS. THE EVIDENCE INDICATED THAT THE FLAPS AND LANDING GEAR WERE EXTENDED. APPROXIMATELY 40 LBS OF COCAINE WERE FOUND ONBOARD THE AIRCRAFT. THE TOX REPORT FOR THE PILOT DISCLOSED .05 MG/L BENZOYLECGONITE (COCAINE METABOLITE) IN HIS BLOOD. THE PILOT HAD RECEIVED A WEATHER BRIEFING WHICH INCLUDED A FREEZING LEVEL AT 7000 FT AND FILED A FLIGHT PLAN REQUESTING A CRUISING ALTITUDE OF 14000 FT.

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:

INDUCTION AIR CONTROL/SYSTEM..ICE

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

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


Contributing Factors

WEATHER CONDITION..ICING CONDITIONS


Contributing Factors

WEATHER EVALUATION..POOR..PILOT IN COMMAND


Contributing Factors

GEAR RETRACTION..NOT PERFORMED..PILOT IN COMMAND


Contributing Factors

RAISING OF FLAPS..NOT PERFORMED..PILOT IN COMMAND



Contributing Factors

IMPAIRMENT(DRUGS)..PILOT IN COMMAND

Index for Dec1988 | Index of months