Service difficulty report · Eec · Boeing 737990ER

Difficulty date
October 10, 2016
Submitted
October 12, 2016
Operation
Air carrier
Aircraft
N483AS
Make and model
Boeing 737990ER
Aircraft serial
36350
Aircraft time
4,384 hours, 1,462 cycles
Engine
Cfmint CFM567B27E
Part
Eec
Part number
2042M67P04
Part serial
FFFH3873
Condition
Failed
Location
Nr 2 Engine
Part time
4,398 hours, 1,466 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

FLIGHT CREW REPORTS CDS FAULT DISPLAYED ON OUTBOARD DISPLAY UNITS. ACFT GROUNDED. DEU 1 & 2 CURRENT STATUS SHOWS FAULT 31-65030 EEC DATA DISAGREE. NR 2 ENGINE EEC RECENT FAULTS SHOWS CH B EEC DATA NOT AVAILABLE WITH FAULT CODE 73-10102 INTERNAL EEC FAULT. REMOVED/REPLACED THE NR 2 ENGINE EEC IAW AMM 73-21-60. OPS NORMAL IAW AMM AND AMM 73-21-00. CDS SYSTEM PASS CDS GROUND SELF TEST GOOD. NR 58 DFCS LRU REPLACEMENT TEST FOR CDS AND SMM 34-36-00 HGS SENSOR TEST FOR CDS GOOD.