What was found
EN ROUTE, FIRST OFFICER'S AIRSPEED AND ALTIMETER FLAGS CAME INTO VIEW, AND THE AUTOPILOT AND AUTO THROTTLE TRIPPED OFF. FLIGHT RETURNED TO PHL AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE ADC. (M)
- Difficulty date
- July 7, 2003
- Submitted
- July 22, 2003
- Operation
- Air carrier
- Aircraft
- N651US
- Make and model
- Boeing 7672B7
- Aircraft serial
- 24764
- System (JASC)
- 3417 · Air Data Computer
- Part
- Adc
- Condition
- Failed
- Location
- Cockpit
- Part time
- 44,188 hours
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.