Service difficulty report · Pump · Boeing 7378H4

Difficulty date
October 27, 2022
Submitted
October 31, 2022
Operation
Air carrier
Aircraft
N8503A
Make and model
Boeing 7378H4
Aircraft serial
38813
Aircraft time
20,339 hours, 9,683 cycles
Part
Pump
Part number
849589
Part serial
MX700612
Condition
Inoperative
Location
Zn 600 Right Win
Stage of operation
CR
How discovered
9
Nature of condition
J, K
Precautionary procedure
D

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

What was found

LOSS OF SYSTEM B. #2 ENGINE DRIVEN LOW PRESSURE LIGHT ILLUMINATED (HYDRAULICS) THEN #1 ELECTRIC HYDRAULIC LIGHT ILLUMINATED (B SYSTEM) / [01] R/R #2 EDP AS PER REF AMM 29-11-11.FOUND EDP SOLENOID INOP.R/R #2 EDP SOLENOID PER AMM 29-11-11.SERVICED B HYDRAULIC PER AMM 12-12-00.;[02] NO DAMAGE FOUND;[03] C/W

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