NTSB Identification: MKC88FA147.
The docket is stored on NTSB microfiche number 38050.
Accident occurred Wednesday, August 03, 1988 in MISSOURI CITY, MO
Probable Cause Approval Date: 12/29/1989
Aircraft: MOONEY M20C, registration: N6528U
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 CO-OWNER OF THE ACFT STATED HE HAD EXPERIENCED A FUEL FLOW PBLM WHILE FLYING TO THE (OJC) ARPT, WHERE PAX (ONE OF THEM WAS A CO-OWNER) WERE TO BOARD. HE STATED HE ADVZD THE OTHER OWNER OF THE PBLM, BUT NO CORRECTIVE ACTION WAS TAKEN. THE ACFT WAS THEN TAXIED TO THE TAKEOFF AREA IN ORDER TO MAKE A FINAL CHK OF THE ACFT SYSTEMS. THE CO-OWNER STATED THAT HE FELT UNEASY ABT THE RESULTS OF THE ENG RUN-UP AND DECLINED TO CONTINUE. AFTR DEPLANING, AND DESPITE THE VERBAL CAUTION, THE OTHER OWNER TAXIED BACK TO THE ACTIVE RWY TO DEPART. THE ACFT WAS LATER OBSRVD BY WITNESSES LOCATED 72 MI FM THE DEPARTURE ARPT DSCNDG IN A STEEP DIVE. THE ACFT CRASHED INTO A RESIDENTIAL GARAGE NEAR MISSOURI CITY, MO. POST ACCIDENT INSP REVEALED A MALFUNCTIONING ENG DRIVEN FUEL PUMP, AND A NON-ACTIVATED ELEC FUEL BOOST PUMP. THE INSP DETERMINED THAT THE ELEC FUEL BOOST PUMP WAS FUNCTIONAL AND CAPABLE OF SUPPLYING FUEL TO THE ENG.

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

OPERATION WITH KNOWN DEFICIENCIES IN EQUIPMENT..ATTEMPTED..PILOT IN COMMAND

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:

STALL..INADVERTENT..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:

FUEL SYSTEM,ELECTRIC BOOST PUMP..NOT ENGAGED



Contributing Factors

FUEL SYSTEM,PUMP..FAILURE,TOTAL

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