SDR ASAA2017081721677

Service difficulty report · Connector · Boeing 737990ER

Difficulty date: August 17, 2017
Submitted: August 21, 2017
Operation: Air carrier
Aircraft: N440AS
Make and model: Boeing 737990ER
Aircraft serial: 41705
Aircraft time: 15,111 hours, 5,006 cycles
Engine: Cfmint CFM567B27E
System (JASC): 7397 · Engine Fuel System Wiring
Part: Connector
Condition: Dirty
Location: Nr 1 Engine
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.

What was found

WHILE PERFORMING T/C 78273000, FOUND FAULT MESSAGE 75-20831, THE T3 SIGNAL IS OUT OF RANGE, LONG TIME FAULT NR 1 ENGINE, ACFT GROUNDED. EEC BITE DONE IAW FIM 73-00, TASK 801. FAULT ACTIVE. ACCOMPLISHED T3 CONNECTOR CLEANING IAW FIM 75-33, TASK 802, AND WDM 75-31-11. FOUR CIRCUIT BREAKERS WERE PULLED AND RESET AND ALL CONNECTORS RECONNECTED. REPAIR CONFIRMATION GOOD IAW FIM 75-33, TASK 802. FAULT NO LONGER ACTIVE.