NTSB Identification: LAX88LA318.
The docket is stored on NTSB microfiche number 36482.
Accident occurred Thursday, September 15, 1988 in LA VERNE, CA
Probable Cause Approval Date: 07/10/1989
Aircraft: CESSNA T310R, registration: N5126J
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT STATED THAT HE WAS TROUBLESHOOTING A PROBLEM WITH THE AIRPLANE'S FUEL FLOW SYSTEM. DURING THE PREFLIGHT RUN-UP, HE NOTICED THAT THE FUEL FLOW GAUGE FOR THE RIGHT ENGINE WAS READING TOO HIGH. HE TOOK OFF TO SEE IF HE COULD MAKE AN INFLIGHT DETERMINATION OF THE PROBLEM. WHEN AIRBORNE, THE GAUGE INDICATED A VALUE THAT THE PILOT CONSIDERED EXCESSIVE, SO HE RETURNED TO THE AIRPORT TO LAND. HE MADE A NO FLAP APPROACH, WITH POWER SET ABOVE TEN INCHES OF MANIFOLD PRESSURE. THIS CONFIGURATION DOES NOT ALLOW ACTIVATION OF THE AIRPLANE'S GEAR-UP WARNING SYSTEM. THE PILOT DID NOT EXTEND THE LANDING GEAR. DURING LANDING FLARE THE PILOT REDUCED POWER, ACTIVATING THE GEAR-UP WARNING HORN. THE PILOT MISTAKENLY THOUGHT THAT THIS WAS THE STALL WARNING HORN AND LOWERED THE NOSE TO LAND. THE AIRPLANE COLLIDED WITH THE RUNWAY.

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

GEAR EXTENSION..NOT PERFORMED..PILOT IN COMMAND

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

WHEELS UP LANDING..INADVERTENT..PILOT IN COMMAND

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

CHECKLIST..NOT USED..PILOT IN COMMAND


Contributing Factors

DIVERTED ATTENTION..PILOT IN COMMAND

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