What was found
ON DOWNWIND, FLAP DID NOT EXTEND. DISCOVERED UPPER NUT ON FLAP ATTACHMENT BOLT MISSING AND FLAP ATTACHMENT BOLT TO AIRFRAME HAD BACKED OUT. NORMAL NO FLAP LANDING WITHOUT INCIDENT. CHECKLIST COMMONLY USED DOES NOT CHECK FLAP ACTUATOR.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON DOWNWIND, FLAP DID NOT EXTEND. DISCOVERED UPPER NUT ON FLAP ATTACHMENT BOLT MISSING AND FLAP ATTACHMENT BOLT TO AIRFRAME HAD BACKED OUT. NORMAL NO FLAP LANDING WITHOUT INCIDENT. CHECKLIST COMMONLY USED DOES NOT CHECK FLAP ACTUATOR.