Service difficulty report · Pump · Boeing 737824

Difficulty date
October 25, 2025
Submitted
October 27, 2025
Operation
Air carrier
Aircraft
N8574Z
Make and model
Boeing 737824
Aircraft serial
63588
Aircraft time
24,347 hours, 12,582 cycles
Part
Pump
Part number
849589
Part serial
MX772278
Condition
Leaking
Location
Hyd System
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

45 MIN INTO FLIGHT. ENG 2 HYD PUMP LOW PRESSURE LIGHTILLUMINATED. ELEC 1 LOW PRESSURE LIGHT ALSO ILLUMINATED. RAN PROCEDURE IAW QRH & EXTENDED FLAPS VIA ALT FLAP SYS TO FLAPS 15 LANDING. REMOVED & REPLACED ENG NR 2 EDP IAW AMM 29-11-11. OPS TESTED GOOD, NO LEAKS NOTED. B SYSTEM EMDP R & R REF AMM 29-11-21. PERFORMED B SYSTEM HYDRAULIC FLUSH REF MT729-PRD-01-01. NO LEAKS NOTED OPS CHECKS GOOD.