What was found
ETOPS SIGNIFICANT SYSTEM - ISFD ALTITUDE FLUCTUATES 120' AND AIRSPEED INDICATOR FLAG APPEARS EVERY 10-15 SECONDS. REMOVED AND REPLACED ISFD IAW MM 34-24-03. OPS/SECURITY CK GOOD. OK FOR SVC.
- Difficulty date
- July 18, 2017
- Submitted
- July 19, 2017
- Operation
- Air carrier
- Aircraft
- N590HA
- Make and model
- Boeing 7673CB
- Aircraft serial
- 33467
- Aircraft time
- 55,316 hours, 10,068 cycles
- System (JASC)
- 3160 · Central Display
- Part
- Display
- Part number
- C16221LA03
- Part serial
- C16221001654
- Condition
- Malfunctioned
- Location
- Cockpit
- Part time
- 12,237 hours, 2,319 cycles
- 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.