What was found
ADC FAILURE, RTFL. REPLACED R-ADC. MSG 34653 INT IN CLIMB AND OFF UNIT FAILED CMC TEST. NEW UNIT CMC TEST PASS. AIRCRAFT OK FOR SERVICE.
- Difficulty date
- October 31, 2009
- Submitted
- November 23, 2009
- Operation
- Air carrier
- Aircraft
- N107UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26900
- Aircraft time
- 46,100 hours, 5,581 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3417 · Air Data Computer
- Part
- Adc
- Part number
- 4040800911
- Part serial
- 98025273
- Condition
- Failed
- Location
- Right
- Stage of operation
- IN
- 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.