NTSB Identification: FTW84FA100.
The docket is stored on NTSB microfiche number 23476.
Accident occurred Wednesday, December 21, 1983 in ADA, OK
Aircraft: MOONEY M20F, registration: N7165V
Injuries: 2 Fatal,2 Serious.

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 ENG LOST POWER SHORTLY AFTER TAKEOFF & THE ACFT STALLED WHILE IN A SLIGHT LEFT TURN. EXAMINATION REVEALED THAT THE LEFT WING FUEL SUMP DRAIN CONTAINED FROZEN WATER IN THE DRAIN PORTS. THE FUEL INJECTOR SCREEN, AFTER THAWING OUT, CONTAINED FROZEN WATER CONTAMINANTS. RUSTY WATER WAS FOUND IN THE FUEL INJECTOR. THE ACFT WAS LAST FUELED ON 12/10/83. THE ACFT WAS KEPT IN AN UNHEATED HANGAR. THE TEMPERATURE IN THE ADA AREA HAD BEEN IN THE AREA OF 10 DEG FOR SEVERAL DAYS PRIOR TO THE ACCIDENT.

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND

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

FLUID,FUEL..WATER

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

AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND

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

FLUID,FUEL..ICE


Contributing Factors

LIGHT CONDITION..DARK NIGHT

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