SDR 9518916739

Service difficulty report · Hyd Press Sw · Boeing 747251F

Difficulty date
November 23, 1995
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N639US
Make and model
Boeing 747251F
Aircraft serial
23887
Part
Hyd Press Sw
Condition
Failed
Location
Nr 3 Engine
Stage of operation
CR
Nature of condition
N
Precautionary procedure
A

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

What was found

ANC-LCK - EN ROUTE, THE NR 3 ENGINE EDP/ADP PRESSURE LIGHT ILLUMINATED. CREW FOLLOWED COCKPIT OPERATING PROCEDURE AND FLIGHT DIVERTED TO ORD. REPLACED THE NR 3 ENGINE DRIVEN PUMP LOW PRESSURE SWITCH AND CHECK WAS NORMAL.