As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CRACKS FOUND ON RING GEAR TEETH AFTER TRANSMISSION WAS DISASSEMBLED FOR CRACKED SUPPORT CASE LUG. RING GEAR SENT FOR NDI. INSPECTOR STATES THAT CRACKS WOULD NOT SHOW UP WITH MAGNAFLUX UNDER ANY CIRCUMSTANCE. CRACKS SHOWED UP READILY WITH LIQUID PENETRANT DURING EACH STAGE OF PROCESSING. COMPONENT SHOP INSPECTOR STATES LAST 3 CASES OF TRANSMISSION SUPPORT CASE CRACKED LUGS ALSO HAD CRACKED RING GEAR TEETH.