What was found
BANGING NOISE HEARD IN COCKPIT AFTER TAKEOFF. FOUND CAPTAIN'S HUMP SEAL LIFTING. PERFORMED TEMPORARY REPAIR, RETURNED AIRCRAFT TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BANGING NOISE HEARD IN COCKPIT AFTER TAKEOFF. FOUND CAPTAIN'S HUMP SEAL LIFTING. PERFORMED TEMPORARY REPAIR, RETURNED AIRCRAFT TO SERVICE.