Service difficulty report · Pump · Boeing 757224

Difficulty date
January 3, 2024
Submitted
January 5, 2024
Operation
Air carrier
Aircraft
N17128
Make and model
Boeing 757224
Aircraft serial
27567
Aircraft time
92,170 hours, 20,219 cycles
Part
Pump
Part number
623303
Part serial
MX701334
Condition
Corroded
Location
Nr 1 Hyd
Stage of operation
CL
How discovered
O
Nature of condition
J, O
Precautionary procedure
A, B

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

What was found

C HYD ELEC 1 ON CLB OUT AT FL280 DEFER PER MEL 2911D. C1 HYD ELETRIC PUMP INOPERATIVE AND DEACTIVATED COMPLIED WITH MEL 2911D MEL 2911D APPROVED CONNECTOR D2204 AT C1 PUMP CORRODED. REF WD29-11-31. WILL NEED CONNECTOR AND PUMP REPLACED. WILL NEED 14 MANHRS FOR PUMP AND CONNECTOR CHANGE AND POSSIBLE HYD CRIMPER REMOVED AND REPLACED C HYD ELEC 1. REF AMM 29-11-02. PANELS (197ML) (195DL) REMOVED FOR ACCESS. PUMP AND HYD LINES SECURED. REPLACED CONNECTOR AND CONTACTS FOR D2204. REF WDM29-11-31-3 PG 3 AND SWPM 20-61-19. CONNECTOR D2204 STILL NEEDS SAFETY WIRED. ELEC CONNECTOR PLUG STILL NEED TO BE REPAIRED AND CONNECTED FOR OPS CHECK. PUMP, AC MOTOR OPS LEAK CHECK GOOD. CONNECTOR SAFETY WIRED. REF AMM 29-11-02.