What was found
OXY PRESS READING DROPS TO ZERO DURING OXY TEST THEN GRADUALLY RESTORES TO PRE-TEST READING. REPLACED BOTTLE REGULATOR PER AMM 35-11-03 AND O2 PRESSURE TRANSDUCER PER AMM. LEAK CHECKS GOOD AND TEST NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OXY PRESS READING DROPS TO ZERO DURING OXY TEST THEN GRADUALLY RESTORES TO PRE-TEST READING. REPLACED BOTTLE REGULATOR PER AMM 35-11-03 AND O2 PRESSURE TRANSDUCER PER AMM. LEAK CHECKS GOOD AND TEST NORMAL.