What was found
DURING CLIMB, THE CREW OXYGEN GAUGE INDICATED THERE WAS NO CREW OXYGEN. AIRCRAFT RETURNED TO NRT AND LANDED WITHOUT INCIDENT. REPLACED THE GROUND WIRE ON THE TRANSDUCER AND THE FIRST OFFICER'S OXYGEN MASK. OPERATIONAL CHECK GOOD.
- Difficulty date
- December 13, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N638US
- Make and model
- Boeing 747251B
- Aircraft serial
- 23549
- System (JASC)
- 3597 · Oxygen System Wiring
- Part
- Wire
- Condition
- Loose
- Location
- Cockpit
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.