Service difficulty report · Pump · Boeing 7378

Difficulty date
July 4, 2022
Submitted
July 7, 2022
Operation
Air carrier
Aircraft
N8757L
Make and model
Boeing 7378
Aircraft serial
67210
Aircraft time
516 hours, 305 cycles
Part
Pump
Part number
5718611
Part serial
571863756
Condition
Low
Location
#1 Engine
Stage of operation
UK
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

ON CLIMBOUT . SYS A ELECTRIC HYD PUMP LOW PRESSURE LIGHT ILLUMINATED HISTORY:RR A SYS EMDP 'DUE TO OVERHEAT ON LANDING' 31MAY / FOUND C/B C881 ON P92 OPENED TROUBLESHOOTED IAW FIM 29-10-00-810-804 ALL WIRE AND COMPONENTS CEHCKED NORMAL. R&R A SYSTEM EDHP PER AMM 29-11-21. INSPECTED CASEDRAIN FILTER NO CONTEMINATION FOUND R&R FOR PRECAUTIONARY IAW AMM29-11-41. OPS CEHCK NORMAL A/C OK FOR SERVICE. 1. SEUNG HYUN CHO (TECHNICIAN) 05-JUL-2022 07:46 UTC FOUND C/B C881 ON P92 OPENED TROUBLESHOOTED IAW FIM 29-10-00-810-804 ALL WIRE AND COMPONENTS CEHCKED NORMAL. R&R A SYSTEM EMDP PER AMM 29-11-21. INSPECTED CASEDRAIN FILTER NO CONTEMINATION FOUND R&R FOR PRECAUTIONARY IAW AMM29-11-41. OPS CEHCK NORMAL A/C OK FOR SERVICE.

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