As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#780, MBJ-JFK. 'LANDING GEAR WOULD NOT EXTEND. MAN LANDING GEAR EXT. PROC. APPLIED; ACCOMPLISHED OPS TEST OF LANDING GEAR RETRACTION SYSTEM (6) TIMES ON L/P 4187530-2 (EXTENDED AND RETRACTED LANDING GEAR 6 TIMES. COULD NOT DUPLICATE FAULT IAW AMM 32-30-00. REQUIRES FURTHER T/S). REPLACED SAFETY VALVE (49GA) AND RELAY (62GA) PRECAUTIONARY ON L/P 4107537-1 AND -2. NO FAULTS / MSGS NOTED. A/C OK FOR SVC. OPEN