Service difficulty report · Pump · Boeing 737824

Difficulty date
September 29, 2023
Submitted
October 3, 2023
Operation
Air carrier
Aircraft
N33264
Make and model
Boeing 737824
Aircraft serial
31584
Aircraft time
70,055 hours, 24,599 cycles
Part
Pump
Part number
849589
Part serial
MX689955
Condition
Seized
Location
Hyd Sys
Part time
52,359 hours, 19,928 cycles
Stage of operation
CR
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 REMOVED #2 ENG EDP PER MM 29-11-11-000-801-001. REMOVED AND REPLACED SEALOIL SEAL PER 72-60-00. OUTER O RING WAS WARPED. PERFORMD INSPECTIONS PER STEP F.11 TO END. FOUND PUMP SIEZED AND CASE DRAIN FILTER DAMAGED. ALL OTHER REQUIRED INSPECTIONS OK. INSTALLED NEW EDP PER MM 29-11-11-400-801-001 UP TO AND INCLUDING STEP H.12 REF L/P 5886659 FOR HYD SYSTEM FLUSH PARTS USED: 29-2910-9-0003,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1535728 SN OFF 9955 PUMP, HYD ENG D OFF 29-2910-9-0003 9955 ON 29-2910-9-0003 8979 PUMP, HYD ENG D OFF 29-2910-9-0003 9955 ON 0000 REF L /P 5886647 FOR ENGINE OIL FLUSH. CONTINUED WITH AMM 29-11-11-400-801-001 FROM STEP I. TO COMPLETION. OPS AND LEAK CHECK GOOD. OK TO CONTINUE.