NTSB Identification: CHI88LA137.
The docket is stored on NTSB microfiche number 36573.
Accident occurred Thursday, June 16, 1988 in MATTOON, IL
Probable Cause Approval Date: 09/29/1989
Aircraft: PIPER PA-24-250, registration: N8226P
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.

UPON RETURN FROM A LOCAL AERIAL PHOTOGRAPHY FLIGHT, THE PILOT FAILED TO ENSURE THAT THE AIRCRAFT LANDING GEAR WAS EXTENDED, DOWN AND LOCKED. WHEN THE AIRCRAFT TOUCHED DOWN, THE GEAR WAS ONLY EXTENDED APPROXIMATELY 10%; IT COLLAPSED FULLY WHEN IT CONTACTED THE GROUND AND THE AIRCRAFT SLID TO A STOP ON ITS BELLY. THE PAX STATED THAT HE THOUGHT THE GEAR WAS STILL IN THE UP POSITION ON SHORT FINAL AND THE PILOT LOWERED THE GEAR HANDLE ONLY WHEN THE PAX QUERIED HIM. POST-ACCIDENT GEAR ACTUATION REVEALED THAT THE GEAR FUNCTIONED NORMALLY. HOWEVER, THE GEAR WARNING HORN WAS ERRATIC.

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

GEAR EXTENSION..DELAYED..PILOT IN COMMAND

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

GEAR DOWN AND LOCKED..NOT IDENTIFIED..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


Contributing Factors

LANDING GEAR,GEAR WARNING SYSTEM..ERRATIC

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