What was found
INSPECTION TYPE-N/A, CREW OXYGEN DROPPED FROM 1200 PSI AT PREFLIGHT TO 500 PSI AT TOP OF CLIMB. REMOVED AND REPLACED LOWER AND UPPER 02 BOTTLES, LEAK CHECKED GOOD. AIR TURNBACK.
- Difficulty date
- January 12, 1999
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N675UP
- Make and model
- Boeing 747123
- Aircraft serial
- 20390
- System (JASC)
- 3510 · Crew Oxygen System
- Part
- Oxy Bottles
- Condition
- Failed
- Location
- Cockpit
- Stage of operation
- CL
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.