What was found
CAPTAIN'S COMPASS SYSTEM HAS TO BE SLAVED EVERY 10 MINUTES. APPEARS THE COMPASS FLUX VALVE IS INOP. REMOVED AND REPLACED NR 1 COMPASS COUPLER AS PER MM 34-21-03. OPS CHECK OK.
- Difficulty date
- January 13, 2006
- Submitted
- January 27, 2006
- Operation
- Air carrier
- Aircraft
- N920FT
- Make and model
- Boeing 747249F
- Aircraft serial
- 22237
- Aircraft time
- 80,073 hours, 19,371 cycles
- System (JASC)
- 3423 · Magnetic Compass
- Part
- Coupler
- Part number
- 2591201911
- Part serial
- 85026452CX
- Condition
- Failed
- Location
- Nr 1 Compass
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.