Service difficulty report · Impeller · Boeing 737990ER

Difficulty date
March 16, 2019
Submitted
March 22, 2019
Operation
Air carrier
Aircraft
N459AS
Make and model
Boeing 737990ER
Aircraft serial
36352
Aircraft time
20,217 hours, 6,633 cycles
Part
Impeller
Part number
607551005
Part serial
010123804
Condition
Failed
Location
Boost Pump
Part time
53,811 hours, 22,623 cycles
Stage of operation
CR
How discovered
O
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

DURING CRUISE FL 350 NUMBER 2 TANK AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINATED. PER CK LIST SWITCH MOVED TO OFF. GROUNDED - YES. REMOVED AND REPLACED NR 2 RT AFT FUEL BOOST PUMP (MOTOR IMPELLER) REF AMM 28-22-41, OPS CHECKS GOOD, NO LEAKS NOTED AT THIS TIME. THIS CLEARS MEL 28-1C.