NEWBURYPORT, MA, USA
N5208G
CESSNA 305A
THE PILOT FLYING A CESSNA 305A WAS ENGAGED IN BANNER TOWING. THE PILOT COULD NOT RELEASE THE BANNER AND MADE A LANDING. DURING THE LANDING ROLL, THE AIRPLANE NOSED OVER. THE FAA SAID THE OWNER HAD MADE AN UNAUTHORIZED MODIFICATION TO THE HOOK RELEASE MECHANISM AND THE PILOT FAILED TO LAND ON A HARD SURFACE AS RECOMMENDED IN THE APPROVED SUPPLEMENTAL FLIGHT MANUAL FOR BANNER TOWING, WHEN LANDING WITH A BANNER STILL ATTACHED.
FAILURE OF THE PILOT IN COMMAND TO FOLLOW PROCEDURES FOR LANDING WITH A BANNER STILL ATTACHED, CONTRIBUTING TO THE ACCIDENT WAS THE IMPROPER MODIFICATION OF BANNER RELEASE MECHANISM.
Source: NTSB Aviation Accident Database
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