Service difficulty report · Pump · Boeing 767424ER

Difficulty date
April 14, 2026
Submitted
April 17, 2026
Operation
Air carrier
Aircraft
N76055
Make and model
Boeing 767424ER
Aircraft serial
29450
Aircraft time
96,347 hours, 13,507 cycles
Part
Pump
Condition
Malfunctioned
Location
Hyd System
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

C HYD DEMAND PUMP EICAS W/FLAP RETRACTION TOMC HAS ORDERED PARTS TO IAD FOR FIM TASKS: ADP LOW PRESSURE LIGHT IS ON IN AUTO MODE OR MANUAL MODEREFERENCE: 29-11 FAULT TREE 898 FOLLOWED FIM TASK 29-11 FAULT TREE 898 PERFORMED CONTINUITY CHECK BETWEEN PIN 2 AND 3. FOUND CONTINUITY BETWEEN THE PINS. FIM SAYS REPLACE ADP CONTROL PRESSURE SWITCH S29. IADMM WORKING ITEM PILOT DEBRIEF: PILOT STATED THAT LANDING WAS SMOOTH. R&R S29 PRESSURE SWITCH REF AMM 29-11-19. PERFORMED OPS TEST OF MAIN HYDRAULIC SYSTEMS OPS CHECK GOOD AT THIS TIME.