What was found
PILOT REPORTED FLAPS WOULD NOT EXTEND IN-FLIGHT, BUT FUNCTION PROPERLY ON THE GROUND. FOUND JACKSCREW HAD NOT BEEN LUBED IAW CESSNA MANUALS, BULLETINS, AND AD, AND HAD WORN OUT JACKSCREW AND COLLAR. INSTALLED NEW UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PILOT REPORTED FLAPS WOULD NOT EXTEND IN-FLIGHT, BUT FUNCTION PROPERLY ON THE GROUND. FOUND JACKSCREW HAD NOT BEEN LUBED IAW CESSNA MANUALS, BULLETINS, AND AD, AND HAD WORN OUT JACKSCREW AND COLLAR. INSTALLED NEW UNIT.