Service difficulty report · Control Unit · Boeing 737990ER

Difficulty date
November 14, 2018
Submitted
November 16, 2018
Operation
Air carrier
Aircraft
N407AS
Make and model
Boeing 737990ER
Aircraft serial
41731
Aircraft time
23,745 hours, 7,679 cycles
Part
Control Unit
Part number
115195214
Part serial
115195205104
Condition
Failed
Location
Aft Flight Compa
Part time
23,745 hours, 7,679 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

ELEC LT ON. GROUNDED - YES. BITE OF ELECTRICAL PNL LOGGED SPCU FAULT. HAS HISTORY, REF B737-900 FIM 24-31 TASK 801. REF FIM 24-34 TASK 802, INSPECTED PINS/SOCKETS OF SPCU CONNECTORS. NO DEFECTS NOTED. REPLACED SPCU REF B737-900 AMM 24-34-11. GROUND VERIFICATION SUCCESSFUL REF AMM 24-34-11 & REPAIR CONFIRMATION OF FIM 24-34 TASK 802.