As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OPS CHECK OF CREW OXYGEN MASK, FOUND OXYGEN SYSTEM LEAKS BEYOND ALLOWABLE LIMIT WITH A 1 HOUR PERIOD. UPON INVESTIGATION FOUND O2 FLEX TO PILOT SYS OUTLET LEAKING AT 1 END OF CRIMP SECTION. THIS O2 FLEX LINE WAS MFG NEW ON 12/06/2005 WITH LOT 24291 AND INSTALLED ON MARCH 2006 WITH SWEEP ON 2000 OXYGEN MASK. TT ON PART 853.5 HRS AND OVER 10 YEARS.