What was found
FIRST OFFICER'S HEADING KEPT DRIFTING LEFT IN FLIGHT CAUSING EFIS COMP MONITOR CAUTION MESSAGE. FOLLOWED QRH, SWITCHED TO DG MODE AND HEADING KEPT DRIFTING. RETURNED TO DFW. REPLACED NR 2 AHARS COMPUTER IAW 34-21-01. OPS CHECK GOOD.
- Difficulty date
- December 23, 2002
- Submitted
- December 26, 2002
- Operation
- Air carrier
- Aircraft
- N499SW
- Make and model
- Cndair CL6002B19
- Aircraft serial
- 7398
- Aircraft time
- 6,422 hours, 5,319 cycles
- System (JASC)
- 3420 · Attitude and Direction Data System
- Part
- Computer
- Part number
- 6229336400
- Part serial
- 3DUG
- Condition
- Malfunctioned
- Location
- Nr 2 Ahrs
- Part time
- 4,363 hours, 3,444 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.