Service difficulty report · Pump · Boeing 7377H4

Difficulty date
August 18, 2022
Submitted
August 22, 2022
Operation
Air carrier
Aircraft
N793SA
Make and model
Boeing 7377H4
Aircraft serial
27888
Aircraft time
69,659 hours, 41,179 cycles
Part
Pump
Condition
Leaking
Location
#2 Engine
Stage of operation
CR
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

B LOW PRESSURE LIGHT ILLUMINATED; COMPLIED W/QRH; FOLLOW BY B ELEC LOW PRESSURE. B QTY SHOWED ZERO. LOSS OF SYS B @ 5 MINS AFTER THE LOW PRESSURE ENG 2 IS WHEN COMPLETE LOSS HAPPENED. / [01] REMOVED AND REPLACED SYS B EMDP PER AMM 29-11-21. PUMP LEAK CHECKED GOOD.;[02] REMOVED AND REPLACED #2 ENGINE DRIVEN HYDRAULIC PUMP; OPS AND LEAK CHECK GOOD IAW AMM 29-11-11.;[03] HIGH POWER RUN WAS ACCOMPLISHED ON TPGHQ00E9390. OK FOR SERVICE

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