What was found
THE PILOT REPORTED THAT BOTH LT & RT HYD FAILURE LIGHTS ILLUMINATED, WHILE THE HYD PRESS GAUGE WAS FLUCTUATING. UNABLE TO EXTEND THE FLAPS PAST THE ¼ POSITION. WHEN THE PILOT PUT THE GEAR HANDLE TO THE DOWN POSITION THE LG DID NOT EXTEND & THE HYD SYS PRESS GAUGE INDICATED ZERO. THE PILOT PERFORMED A MANUAL GEAR EXTENSION IAW AMF PROCEDURES & RECEIVED A LG DOWN & LOCKED INDICATION. THE ACFT LANDED WITHOUT INCIDENT. TROUBLE SHOOTING REVEALED A LEAKING FLAP UP HYD LINE PN 27-81006-029 IN LT WW. REPLACED THE FLAP UP HYD LINE WITH A NEW FABRICATED LINE IAW AMM. PERFORMED FLAP SYS LEAK & OPERATIONAL CHECKS, ALL CHECKS WERE SATISFACTORY.