Service difficulty report · Control Unit · Emb EMB145LR

Difficulty date
February 21, 2026
Submitted
February 24, 2026
Operation
Air carrier
Aircraft
N939AE
Make and model
Emb EMB145LR
Aircraft serial
14500923
Part
Control Unit
Part number
3621001017
Part serial
1352
Condition
Faulted
Location
Zone 200
Part time
51 hours, 54 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

PTRIM BACK UP INOP IN FLIGHT AND RTF. T/S SYST3M WIRES AND CONNECTORS IAW FIM 27-43-00-810-802-A OPS CHECK GOOD COULD NOT DULICATE EICAS OR CMC MESSAGE DURING T/SPER MOC POITIVE MAINT R/R HSCU IAW AMM 27-40-01 OPS CHECK IAW AMM 27-40-00-700-802A OPS CHECK GOOD

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