What was found
MCN - C21 - AFT PRESSURE BULKHEAD HAS ENLARGED FASTENER HOLES AT EXPANSION SEAL INTERCOSTAL AT BS 1016, WL 208 BETWEEN RBL 17 TO RBL 26. REPLACED AFT PRESSURE BULKHEAD EXPANSION SEAL INTERCOSTAL IAW B737-300 SRM 51-40-02.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
MCN - C21 - AFT PRESSURE BULKHEAD HAS ENLARGED FASTENER HOLES AT EXPANSION SEAL INTERCOSTAL AT BS 1016, WL 208 BETWEEN RBL 17 TO RBL 26. REPLACED AFT PRESSURE BULKHEAD EXPANSION SEAL INTERCOSTAL IAW B737-300 SRM 51-40-02.