What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS THE ISFD ALT FLAG AND IFSD SPEED FLAG ILLUMINATED IN FLIGHT. MAINTENANCE REMOVED AND REPLACED ISFD IAW AMM 34-24-02. PERFORMED ALL REQUIRED CHECKS, ALL CHECKS PASSED.
- Difficulty date
- September 7, 2019
- Submitted
- September 10, 2019
- Operation
- Air carrier
- Aircraft
- N956NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31200
- Aircraft time
- 16,508 hours, 6,288 cycles
- System (JASC)
- 3425 · Integrated Flight System
- Part
- Indicator
- Part number
- C16221LA03
- Part serial
- C16221021217
- Condition
- Unreliable
- Location
- Cockpit
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- S
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.