As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS IN FOR HEAVY CHECK *** MAINTENANCE FOUND A CRACK ON THE END OF STRINGER 9R AT FRAME 59. MAINTENANCE REMOVED AND REPLACED THE STRINGER SPLICE ON 9R, AT FRAME 59. IAW SRM 51-43-03 & 51-43-04 AND ETD2019-170-029185. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.