What was found
AIRCRAFT IN BASE MAINTENANCE: R4 DOOR INTERIOR UPPER DOOR CUT OUT TRIM CRACKED. REMOVED, REPAIRED AND RE-INSTALLED R4 DOOR INTERIOR UPPER DOOR CUT-OUT. PER AMM DMC-B787-A-25-21-02-00A-520A-A, AMM DMC-B787-A-25-00-00-01A-663A-A AND AMM-DMC-B787-A-25-21-02-00A-720A-A.