Service difficulty report · Pump · Boeing 7377H4

Difficulty date
December 10, 2023
Submitted
December 14, 2023
Operation
Air carrier
Aircraft
N454WN
Make and model
Boeing 7377H4
Aircraft serial
29851
Aircraft time
48,863 hours, 29,473 cycles
Part
Pump
Part number
UNKNOWN
Condition
Faulty
Location
Zn 100 Fus Lower
Stage of operation
CR
How discovered
9
Nature of condition
K, O
Precautionary procedure
O

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

What was found

AT CRUISE #1 ENG A HYD PUMP LOW PSI LIGHT ILLUMINATED<[01] REMOVED AND REPLACED #1 ENGINE DRIVEN PUMP;'A' SYSTEM; (EDP) ; PER. AMM REF. 29-11-11. OPS. AND LEAK CHECKED GOOD PER. AMM REF. 29-11-11.

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