What was found
NOSE GEAR SHUTTLE VALVE FITTING CRACKED (FRACTURED) CAUSING A HYDRAULIC LEAK. THE FITTING IN QUESTION SCREWS INTO THE NOSE GEAR ACTUATOR, PN 40874-5, PIPER SB 859 DATED, HAD BEEN COMPLETED. SB 859 CALLS FOR THE INSTALLATION OF A SUPPORT BRACKET. SHUTTLE VALVE, PIPER PN 491-949, WAS REPLACED WITH NEW PART. SUBMITTER STATED THE DEFECTIVE PART MAY HAVE BEEN DAMAGED BEFORE THE SB WAS C/W AND WAS UNDECTABLE.