As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SB NR 126, 41.146, HAD NOT BEEN COMPLIED WITH. THE SAFETY WIRE LOCKING THE KNUCKLE PIN LOCKPLATE SCREWS HAD BROKEN, ALLOWING THE KNUCKLE PINS TO BACK OUT OF THE MASTER ROD. THE TOPS OF THE KNUCKLE PINS WERE MACHING INTO THE CAMSHAFT. FAILURE WAS IMMINENT. (SW15200402816)(K)