Service difficulty report · Control Unit · Boeing 7379

Difficulty date
October 31, 2023
Submitted
November 3, 2023
Operation
Air carrier
Aircraft
N954AK
Make and model
Boeing 7379
Aircraft serial
44104
Aircraft time
3,615 hours, 1,038 cycles
Part
Control Unit
Part number
8300027904
Part serial
05641
Condition
Faulted
Location
E/E Shelf E4-2
Part time
3,649 hours, 1,047 cycles
Stage of operation
NR
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

R2 WINDOW HEAT INOP. GROUNDED - YES. ACCOMPLISHED WHCU BITE AND HAD WHCU-LRU RED FAULT LIGHT ILLUMINATED FOR LF AND RS REF AMM 30-41-11. DUE TO HISTORY REMOVED AND REPLACED WHCU REF AMM 30-41-11. OPERATIONAL TEST PASS.

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