As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MOMENTARY LT OVERWING SLIDE EICAS MSG ON CLIMBOUT AS FLAPS MOVED FROM 15 TO5. MSG REAPPEARED DURING APPROACH WITH FLAPS GREATER THAN 20. STAYED ON 1-2 MINS THEN WENT OUT. CORRECTIVE ACTION: T/S AND FOUND FWD LATCH ON SLIDE DOOR NOT ENGAGED. ADJUSTED LATCH PIN. DOOR LATCHED OK REF. B757 AMM 25-65. (5475520)