Service difficulty report · Fire Loop · Boeing 737990ER

Difficulty date
April 27, 2018
Submitted
May 14, 2018
Operation
Air carrier
Aircraft
N493AS
Make and model
Boeing 737990ER
Aircraft serial
41727
Aircraft time
7,901 hours, 2,686 cycles
Part
Fire Loop
Part number
90201802
Condition
Failed
Location
Nr 1 Engine
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

NR 1 ENGINE B FIRE LOOP FAULT DURING TEST. ACFT GROUNDED. REMOVED AND REPLACED THE FIRE DETECTION LOOP IAW AMM 26-11-01, OPS CHECKED GOOD.