Service difficulty report · Pump · Boeing 737824

Difficulty date
January 13, 2019
Submitted
January 14, 2019
Operation
Air carrier
Aircraft
N86534
Make and model
Boeing 737824
Aircraft serial
62750
Aircraft time
8,768 hours, 3,149 cycles
Part
Pump
Part number
849589
Condition
Not Reported
Location
Nr 2 Engine
Stage of operation
UK
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 2 HYD PUMP LOW PRESS LIGHT ILLUMINATED REMOVED AND INSTALLED ENGINE NR 2 HYDRAULIC ENGINE DRIVEN PUMP (EDP) ALSO REPLACED EDP CASE DRAIN FILTER ELEMENT, ELEMENT WAS FOUND IN GOOD CONDITION. ROTABLE PARTS CHANGE WAS INDICATED - TT 1850538 SN OFF 8536 PUMP, HYD ENG D OFF 29-2910-9-0003 8536 ON 29-2910-9-0003 1941 29-11-11, AND AMM 29-11-51. UPDATE FOR INSTALL REFERENCES. REF. IPC 29-11-11-01A, AMM ENGINE NR 2 HYDRAULIC ENGINE DRIVEN PUMP (EDP) NEEDS INSTALL TEST PER. AMM 29-11-11-400-801-001 STEP G. ALOS THE EDP CASE DRAIN FILTER NEEDS LEAK CHECK. UPON LEAK CHECK FOUND QUICK DISCONNECT BROKEN ON HYDRAULIC PRESSURE LINE AND HYDRAULIC PREASURE UNION AT PYLON. REMOVED AND REPLACED HYDRAULIC UNION AND PREASURE HOSE FOR NUMBE R 2 ENGINE. PERFORMED LEAK CHECK, OPS CHECK OK.