What was found
DURING ENG START AT PUSHBACK CAPT'S CDI COMPASS FLAG IN VIEW COMPASS FROZE ON HSI. HSI WAS PREVIOUSLY CHANGED ON PRIOR ITEM & PLACED ON SOS. ORIGINAL HSI INSTALLED, OPS CK OK PER MM 34-41-06.
- Difficulty date
- November 10, 2003
- Submitted
- November 11, 2003
- Operation
- Air carrier
- Aircraft
- N524UP
- Make and model
- Boeing 747200
- Aircraft serial
- 21446
- Aircraft time
- 68,101 hours, 18,117 cycles
- System (JASC)
- 3425 · Integrated Flight System
- Part
- Hsi
- Part number
- 7771397001
- Part serial
- 6D424
- Condition
- Failed
- Location
- Cockpit
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.