What was found
(CAN) VALVE PURCHASED NEW. INSIDE VALVE THERE IS A FLAPPER DOOR WITH A RUBBER SEAL. FLAPPER DOOR SEAL HAD SWOLLEN KEEPING THE DOOR OPEN; THUS, DEFEATING THE PURPOSE OF THE CHECK VALVE IN THE BOOSTER PUMP SYSTEM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) VALVE PURCHASED NEW. INSIDE VALVE THERE IS A FLAPPER DOOR WITH A RUBBER SEAL. FLAPPER DOOR SEAL HAD SWOLLEN KEEPING THE DOOR OPEN; THUS, DEFEATING THE PURPOSE OF THE CHECK VALVE IN THE BOOSTER PUMP SYSTEM.