As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON AIRFRAME INSPECTION INSTALLED NEW LANDING GEAR EMERGENCY GEAR EXTENSION VALVE P/N# 98733-2 OR PIPER AIRCRAFT P/N# 101758-802 S/N# 0553. PERFORMED EMERGENCY GEAR EXTENSION AND NEW VALVE FAILED! REMOVED FAILED VALVE AND INSTALLED SECOND NEW EMERGENCY EXTENSION VALVE P/N# 101758-802, S/N# 0469 WHICH ALSO FAILED FOLLOWING FIRST GEAR EXTENSION.