Service difficulty report · Pump · Boeing 737990ER

Difficulty date
March 9, 2019
Submitted
March 14, 2019
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
20,156 hours, 6,609 cycles
Part
Pump
Part number
607551005
Part serial
011457853
Condition
Failed
Location
Fuel System
Part time
20,157 hours, 6,608 cycles
Stage of operation
NR
How discovered
O
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

RIGHT MAIN FUEL TANK AFT PUMP SHOWS LOW PRESSURE LIGHT ILLUMINATED - SWITCH ON - FUEL IN TANK. GROUNDED - YES. REMOVED AND REPLACED R20 RELAY REF WDM 28-23-11/3. REPLACED NR 2 AFT FUEL PUMP PRESSURE SWITCH REF AMM 28-42-11. REPLACED NR 2 AFT FUEL BOOST PUMP REF AMM 28-22-41. RT AFT BOOST PUMP OPS NML REF AMM 28-22-00. P91 PANEL DC SYS.