As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) VALVE WAS OVERHAULED BY VENDOR. AFTER OVERHAUL IT WAS INSTALLED IN THE AIRCRAFT. AFTER 2 HOURS OF OPERATION A LEAK DEVELOPED. THE VALVE WAS REMOVED AND DISTRIBUTION MANIFOLD DISASSEMBLED. WHEN CHECKING THE IPC IT WAS NOTED THAT AT OVERHAUL, THE OVERHAUL FACILITY FAILED TO INSTALL 2 O-RINGS. THE O-RINGS WERE INSTALLED AND RE-ASSEMBLED, THE AIRCRAFT GEAR SWING CARRIED OUT SATISFACTORY (TC NR 20070409003)