Service difficulty report · Pump · Boeing 737824

Difficulty date
August 13, 2021
Submitted
August 13, 2021
Operation
Air carrier
Aircraft
N87513
Make and model
Boeing 737824
Aircraft serial
31621
Aircraft time
42,367 hours, 14,719 cycles
Part
Pump
Part number
849589
Condition
Failed
Location
Hyd System
Stage of operation
DE
How discovered
O
Nature of condition
J
Precautionary procedure
B

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

What was found

ENG 2 LOW PRESSURE LIGHT LIGHT ON PER FLT CREW THE LOW PRESS LITE IS FOR THE ENG DRIVEN HYD PUMP. LOCKING UNLOCKING FOR UPDATE REMOVED AND REPLACED NUMBER 2 ENGINE DRIVEN HYDRAULIC PUMP STEPS A THRU H. REF AMM 29-11-11-400-801-001. REMOVED NUMBER 2 ENGINE FOUND, REPLACED CASE DRAIN FILTER REF AMM 29-11-51-400-801. RREQUIRES ENGINE IDLE LEAK CHECK. ENGINE DRIVEN PUMP REQUIRES HYDRAULIC CASE DRAIN FILTER INSPECTED FOR CONTAMINATION NONE PUMP, HYD ENG D OFF 29-2910-9-0003 7735 ON 29-2910-9-0003 6337 LEAK CHECK. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1952300 SN OFF 7735 PRESSUE MODULE AND RETURN FILTER CHANGE REQUIRED REF. A.M.M NO DEBREE FOUND IN CASE DRAIN FILTER. NO FLUSHING OR HIGH 29-11-11-400-801-001 STEP F2C PREFORMED #2 ENG IDLE LEAK CK OF HYDRO PUMP FOUND NO LEAKS NO LEAKS NOTED