Service difficulty report · Pressure Switch · Boeing 737990ER

Difficulty date
January 13, 2022
Submitted
January 19, 2022
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
27,285 hours, 8,635 cycles
Part
Pressure Switch
Part number
21C1322
Condition
Inoperative
Location
Mgl Wheel Well
Stage of operation
DE
How discovered
V
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

#2 AFT MAIN TANK FUEL LOW PRESSURE LIGHT ILLUMINATED IN DESCENT. #2 AFT PUMP SWITCHED OFF FOLLOWING QRH. GROUNDED - YES. REMOVED & REPLACED RIGHT AFT FUEL PRESSURE SWITCH PER B737-900 AMM 28-42-11 PULLED RESET ASSOCIATED (2)CB . OPS CHECK NORMAL.