What was found
PDX FLIGHT NR 2309: HDG MISMATCH. AIRCRAFT RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED THE NR 2 AHRS (AHRU) COMPUTER. OPS CHECKED GOOD IAW MTC 6342101. AIRCRAFT AND PLACARD ARE CAT III. AIRCRAFT RETURNED TO SERVICE.
- Difficulty date
- October 15, 2006
- Submitted
- October 16, 2006
- Operation
- Air carrier
- Aircraft
- N417QX
- Make and model
- Bombdr DHC8402
- Aircraft serial
- 4086
- Aircraft time
- 6,784 hours, 6,244 cycles
- System (JASC)
- 3420 · Attitude and Direction Data System
- Part
- Computer
- Part number
- 42000332501
- Part serial
- 1135
- Condition
- Malfunctioned
- Location
- Ahrs
- Part time
- 6,784 hours, 6,244 cycles
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.