Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
September 11, 2023
Submitted
September 15, 2023
Operation
Air carrier
Aircraft
N474AS
Make and model
Boeing 737990ER
Aircraft serial
40715
Aircraft time
30,760 hours, 9,642 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
O
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

#2 ENG FIRE LOOP B SHOWS FAULT DURING TEST, A LOOP TESTS FINE. GROUNDED - YES. ON DEFERRAL.