As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU DOOR INSULATION SUPPORT BRACKET (5EA) IS CORRODED. COMPLETED NO ALLOWABLE DAMAGE FOUND FOR SUPPORT BRACKETS 5EA IAW SRM 51-10-02-0G-0 STEP 9C REMOVED AND REPLACED APU DOOR INSULATION SUPPORT BRACKETS 5EA IAW B737-900ER SRM 51-40-02 BAC DWG 148A6350 REV A AND B737-900ER AIPC 52-48-21-08.