Service difficulty report · Interface Unit · Boeing 74747UF

Difficulty date
February 14, 2021
Submitted
February 18, 2021
Operation
Air carrier
Aircraft
N492MC
Make and model
Boeing 74747UF
Aircraft serial
29253
Aircraft time
93,521 hours, 16,161 cycles
Part
Interface Unit
Part number
6228589105
Part serial
121
Condition
Faulted
Location
Altitude
Stage of operation
CL
How discovered
O
Nature of condition
G, J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ALT DISAGREE EICAS CAUTION, MAWEA SCID EIU-L FAIL (REMOVED AND REPLACED L EIU IAW AMM 31-61-01, EIU SOFTWARE VERIFIED CURRENT. INSPECTED PITOT PROBES IAW AMM 34-11-01, NO FINDINGS. NO ACTIVE MESSAGES. AUTO-LAND UNIQUE TEST PASSED PER AMM 22-10-00.)

More about the Boeing 747-47UF