SDR ASAA2016072217475

Service difficulty report · Engine · Boeing 737890

Difficulty date: July 22, 2016
Submitted: July 25, 2016
Operation: Air carrier
Aircraft: N538AS
Make and model: Boeing 737890
Aircraft serial: 41188
Aircraft time: 16,601 hours, 4,835 cycles
Engine: Cfmint CFM567B27
System (JASC): 7320 · Fuel Controlling System
Part: Engine
Condition: Faulted
Location: Nr 1
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

WHILE PERFORMING TASKCARD 78273000, NR 1 ENGINE HAD A SHORT TIME FAULT MESSAGE 73-30311. THE START SWITCH SIGNAL AND ARINC BUSS DATA DISAGREE. ACFT GROUNDED. FAULT LOGGED IN FLIGHT HISTORY LEG 9 ONLY. ACCOMPLISHED FIM 73-24 TASK 813 EEC TEST PASSED WITH SWITCH IN ALL POSITIONS.