As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. L1 DOOR GUIDE ARM PIN INSPECTION FOUND DOOR HOLD OPEN LATCH WON'T LOCK DOOR IN OPEN POSITION. REMOVED AND REPLACED UPPER CAM PLATE PER AMM 52-11-00 AND UPPER GUIDE ARM PER AMM 52-11-21 (AALA201709219001). OPERATIONAL CHECK GOOD.