Service difficulty report · Pump · Boeing 737900ER

Difficulty date
April 24, 2023
Submitted
April 24, 2023
Operation
Air carrier
Aircraft
N77431
Make and model
Boeing 737900ER
Aircraft serial
32833
Aircraft time
46,128 hours, 16,136 cycles
Part
Pump
Part number
849589
Part serial
MX783052
Condition
Failed
Location
Eng 1
Part time
24,890 hours, 9,037 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ENG 1 LOW PRESSURE LIGHT LIGHT ON LIGHT CAME ON DURING CLIMBOUT PASSING APPROX 15K FEET UPDATED MAA CODE FIX USING VENDOR MAA SCREEN PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. ROTABLE PARTS ENTRY MADE. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1406150 SN OFF 3052 PUMP, HYD ENG D OFF 29-2910-9-0003 3052 ON 29-2910-9-0003 6830 R&R #1 ENG HYDRAULIC PUMP AND ROTATTING SEAL REF AMM 29-11-11 -000-801-001. RAN #1 ENG 30 MIN AND FOUND NO LEAKS. SERVICED A SYSTEM TO FULL

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