What was found
INTEGRATED STANDBY FLIGHT DISPLAY AIRSPEED OR ALTITUDE IS NOT CORRECT, STANDBY ALTIMETER INDICATES 370 FEET BELOW CRUISE ALTITUDE. ISFD OPS TEST PASSED IAW AMM 34-24-02. SYSTEM SERVICEABLE.
- Difficulty date
- February 16, 2018
- Submitted
- February 17, 2018
- Operation
- Air carrier
- Aircraft
- N793UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26946
- Aircraft time
- 89,953 hours, 12,181 cycles
- System (JASC)
- 3416 · Altimeter, Barometric/Encoder
- Part
- Altimeter
- Condition
- Inaccurate
- Location
- Standby
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.