Service difficulty report · Line · Boeing 747257B

Difficulty date
March 7, 1997
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N303TW
Make and model
Boeing 747257B
Aircraft serial
20116
Part
Line
Part number
AE7031041
Condition
Failed
Location
Nr 4 Hyd System
Stage of operation
CL
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

JFK - FLT 885 - DURING CLIMB, NR 4 HYDRAULIC QUANTITY WENT TO ZERO. REMOVED AND REPLACED HYDRAULIC PRESSURE LINE FROM ENGINE DRIVEN PUMP TO THE FIREWALL, MFG P/N AE703104-1. OPERATIONAL CHECKED NORMAL. (M)