As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: CABIN OFAR FWD AND AFT EMERGENCY ESCAPE HATCH LATCH HARD TO OPEN. MAINTENANCE REPLACED CABIN OFAR AFT EMERGENCY ESCAPE HATCH LATCH IAW BOEING AMM DMC-B787-A-20-11-00-00A-030A-A AND B787-A-52-53-06-00B-320A-A.