What was found
COMPLETE INTERIOR REFURBISHING WAS DONE. 100 HRS AFTER AC WAS RETURNED TO SERV, NOSE AND LT MAIN GEAR WOULD NOT LOCK DOWN, PILOT LANDED WITH ONLY RT GEAR EXTENDED. HYD FLUID WAS DRIPPING FROM BELLY, UPON INVESTIGATION, ALUMINUM HYD LINE WAS CHAFED THROUGH BY AILERON CABLE IN FRONT OF MAIN SPAR, UNDER CABIN ENTRANCE DOOR SILL. SUSPECTED THAT AFTER AC WAS INSP, WHEN DISCREP WERE BEING CLEARED, INTERIOR WORK BEING DONE, PERSONNEL SOMEHOW BENT LINE DOWN TO WHERE IT CONTACTED CABLE. WHEN PANEL IS REMOVED UNDER DOOR, HYD LINES ARE EXPOSED, LITTLE SUPPT IN THIS AREA, LITTLE CLEARANCE BTWN LINES, CABLES. LINES, CABLES ON LT SIDE OF CABIN ARE LESS LIKELY TO BE DISTURBED AS AUTOPILOT ROLL SERVO PROTECTS THEM. (K)