Service difficulty report · O-Ring · Boeing 757224

Difficulty date
August 14, 2024
Submitted
August 19, 2024
Operation
Air carrier
Aircraft
N14107
Make and model
Boeing 757224
Aircraft serial
27297
Aircraft time
111,441 hours, 26,184 cycles
Part
O-Ring
Part number
NAS16126A
Condition
Leaking
Location
Hyd System
Stage of operation
NR
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

RIGHT HYD SYS PRESSURE LIGHT AND EICAS ELECTRIC HYDRAULIC PUMPS. ALL HYDRAULIC QUANTITIES NORMAL. AUTO EVENT ATTACHED, SHOWS RSVR PRESS HIGH ON ALL 3 SYSTEMS. DURING CLIMB OUT AT FL180, RIGHT HYDRAULIC PRESSURE LIGHT INDICATOR ILLUMINATED AND EICAS MESSAGE. NO FLIGHT CONTROLS WERE BEING ACTUATED. RIGHT SYSTEM HYDRAULIC PRESSURE WAS RECORDED AT 2980. FLIGHT CREW RESPONDED BY SHUTTING OFF THE ENGINE AND TROUBLE SHOT REF FIM 29-11 FAULT TREE 831 R & R HYD PRESSURE SWITCH RIGHT SYSTEM REF AMM 29-35-01. OP CHECKS GOOD. PRESSURE READS NORMAL. RSVR PRESSURE NORMAL.