Service difficulty report · Pressure Switch · Boeing 737824

Difficulty date
July 7, 2024
Submitted
July 9, 2024
Operation
Air carrier
Aircraft
N33203
Make and model
Boeing 737824
Aircraft serial
30613
Aircraft time
74,623 hours, 27,623 cycles
Part
Pressure Switch
Condition
Faulted
Location
Center Fuel Tank
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

FUEL IMBALANCE, CTR TANKS FUEL INDICTION. APPLIED MEL2802D, LOCKED OUT CB FOR RT CENTER FUEL PUMP LIGHT CAME ON DURING LIFT OFF, PER FIM 28-41T820 THIS FUEL PUMP APPLIED MEL 2802D, PLACARD APPLIED, CB FOR RT CENTER FUEL, PLACARD APPLIED, IAW CREW, RT CENTER FUEL PUMP LOW PRESSURE WAS THE CAUSE FOR THE FUEL IMBALANCE. PUMP PULLED AND CAPPED. AS THEY WERE ASCENDING THROUGH FL10, RT CENTER FUEL PUMP LOW PRESSURE LIGHT & MASTER CAUTION CAME ON. PILOTS BEGAN CHECKLIST. REPORTED 5K FUEL BURN IN 40MIN. CENTER TANK DROPPED TO 2K. DURING DESCENT 1K CAME BACK FOR 3K IN CENTER TANK. PUMP RT (M235) AS PRECAUTION. NOTE, FAULTS POTENTIAL CHRONIC. REF AMM TASK 28-42-11-700-801 STEP (K)LOW PRESSURE SWITCH OPS TEST. IF NO FAULTS. REPLACE CTR BOOST.