Service difficulty report · Eec · Boeing 737990ER

Difficulty date
September 4, 2017
Submitted
September 8, 2017
Operation
Air carrier
Aircraft
N408AS
Make and model
Boeing 737990ER
Aircraft serial
41732
Aircraft time
18,981 hours, 6,157 cycles
Engine
Cfmint CFM567B27
Part
Eec
Part number
2042M67P02
Part serial
FFFB1353
Condition
Faulted
Location
Nr 1 Engine
Part time
32,014 hours, 10,183 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

DURING ACCOMPLISHEMENT OF T/C 78273000, NEW SHORT TIME FAULT 78-31511 DISPLAYED FOR THE RT THRUST REVERSER SLEEVE POSITION SIGNAL IS OUT OF RANGE IN THE NR 1 ENGINE. ACFT GROUNDED. EEC REMOVED AND REPLACED IAW AMM 73-21-60.