What was found
DURING COMPLIANCE OF A.D. 89-06-04 AND 89-16-12; A.S.B. A53-231 AND A53-232, FOUND AFT PRESSURE BULKHEAD CRACKED AT LONGERON 16L. REPLACED T-CAP IAW DC-9 S.B. A53-231.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING COMPLIANCE OF A.D. 89-06-04 AND 89-16-12; A.S.B. A53-231 AND A53-232, FOUND AFT PRESSURE BULKHEAD CRACKED AT LONGERON 16L. REPLACED T-CAP IAW DC-9 S.B. A53-231.