As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A 50 HOUR INSPECTION OF THE HORIZONTAL STAB, THE 4 RIBS WERE FOUND TO BE LOOSE & CRACKED. THIS IS DONE BY SQUEEZING THE NOSE RIBS (WITH A MODERATE AMOUNT OF PRESSURE) AND LISTEN FOR CLICKING SOUNDS & FEELING OF LOOSE RIVETS. THEREFORE, THE LOWER SKIN WAS PEELED BACK THE 4 RIBS WERE REMOVED AND REPLACED WITH NEW RIBS. THE SKIN WAS RIVETED BACK ON. STAB WAS INSTALLED AND AIRCRAFT WAS RETUNED TO SERVICE. 7 B&C S.D. FOUND DUING 50 HOUR INSPECTION. NO ACTION REQUIED BY FLIGHT CREW.