As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND PORTABLE O2 MASK TO BE THE INCORRECT TYPE. EVEN THOUGH CUSTOMER BULLETIN 213 DID NOT LIST THIS ACFT IN THE EFFECTIVITY SECTION, AN INSP REVEALED THE WRONG MASK ANYWAY. ANOTHER BAD MASK WAS FOUND ON ANOTHER ACFT IN THE FLEET ALSO NOT LISTED IN THE BULLETIN. RECOMMEND ALL THESE OPERATORS CHECK THEIR PORTABLE O2 MASK FOR CORRECT PN IAW CB213.