As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMB AT FL260, ENROUTE, FWD FLIGHT ATTENDANT OXYGEN MASK DID NOT DROP DURING CABIN DECOMPRESSION CAUSED BY FUSELAGE SKIN PUNCTURE. DETERMINED THE THE O2 MASK DOOR WAS JAMMED BY A DEBONDED O2 MASK DOOR HINGE. REBONDED O2 MASK DOOR HINGE AND ADJUSTED CLEARANCE. DOOR THEN OP CHECKED OK. (K)