SDR ASAA2015042711493

Service difficulty report · Eec · Boeing 737890

Difficulty date: April 27, 2015
Submitted: April 28, 2015
Operation: Air carrier
Aircraft: N563AS
Make and model: Boeing 737890
Aircraft serial: 35180
Aircraft time: 32,583 hours, 9,904 cycles
Engine: Cfmint CFM567B27
System (JASC): 7320 · Fuel Controlling System
Part: Eec
Part number: 2042M67P04
Part serial: FFFH1006
Condition: Faulted
Location: Nr 1 Engine
Part time: 21,787 hours, 6,578 cycles
Stage of operation: IN
How discovered: 9
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

ON T/C 78273000, ECONOMIC FAULT MSGS: MSG 75-30411, #75-20361 #1 ENG. HPTACC POSITION SIGNAL OUT OUT OF RANGE, MSG #75-20411 #1 ENG HPTACC POSITION SIGNAL DISAGREE, #75-10411 #1 ENG. HPTACC POSITION SIGNAL DISAGREE, 75-20361 #1 ENG HPTACC SIGNAL IS OUT OF RANGE GROUNDED - YES. REPLACED #1 ENG EEC REF MM 73-21-60, GROUND VERIFICATION TEST PASSED.