Service difficulty report · Pump · Boeing 737823

Difficulty date
August 1, 2019
Submitted
August 5, 2019
Operation
Air carrier
Aircraft
N954AN
Make and model
Boeing 737823
Aircraft serial
30089
Aircraft time
55,814 hours, 22,886 cycles
Part
Pump
Part number
849589
Part serial
MX781998
Condition
Unreliable
Location
Hyd System
Stage of operation
AP
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

AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY ON ACCOUNT OF NR 1 ENGINE LOW HYDRAULIC PRESSURE. MAINTENANCE REMOVED AND REPLACED NR 1 ENG HYD PUMP IAW 29-11-11, OPS CHECK & LEAK CHECK GOOD.