What was found
PUT FLAPS DOWN AT 210 AND GOT UNUSUAL RUMBLE. AS AIRCRAFT SLOWED TO 180 RUMBLE STOPPED. RUMBLE CAME BACK IN 30 DEGREE BANK AND THEN QUIT. SECURED NR 6 T/E FLAP DRIVE UNIT BOLT PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PUT FLAPS DOWN AT 210 AND GOT UNUSUAL RUMBLE. AS AIRCRAFT SLOWED TO 180 RUMBLE STOPPED. RUMBLE CAME BACK IN 30 DEGREE BANK AND THEN QUIT. SECURED NR 6 T/E FLAP DRIVE UNIT BOLT PER MM.