Service difficulty report · Pressure Switch · Boeing 737890

Difficulty date
May 22, 2021
Submitted
May 24, 2021
Operation
Air carrier
Aircraft
N579AS
Make and model
Boeing 737890
Aircraft serial
35187
Aircraft time
51,685 hours, 15,280 cycles
Part
Pressure Switch
Part number
21C1321
Condition
Inoperative
Location
Rt Fuel Pump
Stage of operation
NR
How discovered
O
Nature of condition
P
Precautionary procedure
O

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

What was found

#2 AFT FUEL PUMP "LOW PRESSURE" LIGHT NOT ILLUMINATED WITH PUMP SWITCH IN OFF POSITION. GROUNDED - YES. REPLACED #2 TANK AFT BOOST PUMP PRESSURE SWITCH REF B737-800 AMM 28-42-11. PERFORMED OPERATIONAL TEST REF AMM 28-42-11-700-801 2 I (1 ) THRU (15) . OPS CHECK GOOD. GROUND VERIFICATION SUCCESSFUL.