Service difficulty report · Pressure Switch · Boeing 737890

Difficulty date
February 14, 2020
Submitted
February 19, 2020
Operation
Air carrier
Aircraft
N577AS
Make and model
Boeing 737890
Aircraft serial
35186
Aircraft time
48,781 hours, 14,508 cycles
Part
Pressure Switch
Part number
21C1321
Condition
Faulted
Location
Fuel Pump
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

#1 AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED, FUEL QTY 5.8. GROUNDED - YES. REMOVED & REPLACED LF AFT FUEL BOOST PUMP PRESSURE SWITCH REF B737-800 AMM 28-42-11. OPS TEST GOOD.