As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) CARGO HOOK ELECTRIC RELEASE INTERMITTENT IN OPERATION. DURING AN EMERGENCY LOAD RELEASE THE HOOK DID NOT OPEN AND THE AIRCRAFT CRASHED INTO THE GROUND. AIRCRAFT WAS OPERATING IN A SWAMP AND IT IS SUSPECTED THAT WATER OR FOREIGN MATERIAL CAUSED THE HOOK RELEASE PROBLEM.