As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAMC TEXT: PRESSURE DROPPING ABOUT 10 PSI PER MINUTE. NO NOTICEABLE LEAKS AT MASKS. FOUND CAPTAINS O2 MASK LEAKING AND TEST FUNCTION INTERMITTENT. REPLACED MASK AND SWAPPED BOX TO 2ND OBSERVER POSITION REF AMM NEW CRUSH WASHERS INSTALLED AND LEAK CHECKED OK.