As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IDENTIFIED CRACK AT RIGHT UPPER CHORD BS 727, STRINGER 18A AFT HOLE BY UTILIZING HFEC AND ULTRASONIC METHOD. REMOVED AND REPLACED RIGHT UPPER CHORD ASSEMBLY CLEANED AND TREATED ALL EXPOSED AREAS AND APPLIED CORROSION INHIBITING COMPOUND IAW ECO 1785. AIRCRAFT RETURNED TO SERVICE.(M)