What was found
DURING HEAVY CHECK MAINTENANCE FOUND CRACK FOUND ON VERT STAB AFT RIB SPAR 9/10. REPLACED AFT SPAR RIB 9/10 IAW SRM 51-41-01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK MAINTENANCE FOUND CRACK FOUND ON VERT STAB AFT RIB SPAR 9/10. REPLACED AFT SPAR RIB 9/10 IAW SRM 51-41-01.