NTSB Identification: LAX88LA211.
The docket is stored on NTSB microfiche number 36752.
Accident occurred Saturday, June 04, 1988 in LAKEPORT, CA
Probable Cause Approval Date: 07/10/1989
Aircraft: CESSNA 180, registration: N9124C
Injuries: 1 Minor.

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

DURING A BANNER TOW OPERATION, THE PLT TRIED TO RELEASE THE BANNER. WHEN THE BANNER DID NOT DISCONNECT, THE PLT TURNED TO SEE WHAT THE PROBLEM WAS. THE AIRPLANE STALLED AND BEFORE THE PLT COULD REGAIN CONTROL, IT COLLIDED WITH THE TERRAIN. INSPECTION OF THE RELEASE MECHANISM REVEALED THAT THE SET-UP DID NOT COMPLY WITH THE STC.

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

SIGN TOWING EQUIPMENT..IMPROPER

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:

DIVERTED ATTENTION..PILOT IN COMMAND

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

INSTALLATION..IMPROPER

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