Service difficulty report · Switch · Boeing 737890

Difficulty date
July 30, 2022
Submitted
August 3, 2022
Operation
Air carrier
Aircraft
N592AS
Make and model
Boeing 737890
Aircraft serial
35190
Aircraft time
52,558 hours, 15,543 cycles
Part
Switch
Part number
21C1321
Condition
Faulty
Location
R Wing Rear Spar
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

NUMBER 2 RIGHT AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED INTERMITTANTLY. ONCE ON WOULD REMAIN ON UNLESS SWITCH CYCLED OFF THEN BACK ON AFTER A MINUTE. GROUNDED - YES. REMOVED AND REPLACED R/H AFT FUEL BOOST PUMP PRESSURE SWITCH. REF IAW B737-800 AMM 28-42-11-420-801.