As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - MAJOR REPAIR - DURING C18 CHECK DISCOVERED STRINGER 16L CRACKED AT BS 500C. MAINTENANCE REMOVED CRACKED END OF STRINGER IAW AMERICA WEST AIRLINES (AWA) ENGINEERING REQUEST (ER) 03-5312-01094-001 FIG 6. FABRICATED FILLER, CHANNEL AND RADIUS FILLER IAW AWA ER 03-5312-01094-001. INSTALLED FABRICATED REPAIR PARTS AT BS 500C STRINGER 16L IAW AWA ER 03-5312-01094-001.