Service difficulty report · Pump · Boeing 7378

Difficulty date
February 22, 2021
Submitted
February 22, 2021
Operation
Air carrier
Aircraft
N77538
Make and model
Boeing 7378
Aircraft serial
63694
Aircraft time
13,249 hours, 4,718 cycles
Part
Pump
Part number
849589
Condition
Failed
Location
Engine 2
Stage of operation
UK
How discovered
O
Nature of condition
O
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 LOW PRESSURE LIGHT ON PERFORMED HYDRAULIC SYSTEM B ENGINE-DRIVEN PUMP (EDP) REMOVAL AS PER AMM TASK 29-11-11-000-801-001. ATTACHED PICTURES OF EDP ENG 2. REPLACED EDP AT ENG 2 AS PER AMM 29-11-11 PB401. PENDING LEAK CHK AND OPERATIONAL TEST ADD EMP:U370336 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1931518 SN OFF 1178 IPC REFERENCE NR 29-11-11 PUMP, HYD ENG D OFF 29-2910-9-0003 8178 ON 29-2910-9-0003 3701 ATTACHED PICTURES OF ENG 2 EDP RAN THE ENGINE NBR 2 FOR 10 MINS. NO LEAKS NOTED. ALL INDICATIONS NORMAL. OK FOR SVC ADD EMP:U247191.

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