SDR EIA2006375

Service difficulty report · Hydraulic System · Boeing 747230B

Difficulty date
November 10, 2006
Submitted
December 12, 2006
Operation
Air carrier
Aircraft
N489EV
Make and model
Boeing 747230B
Aircraft serial
23393
Aircraft time
84,207 hours, 14,932 cycles
Part
Hydraulic System
Condition
Leaking
Location
Nr 1
Stage of operation
CR
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

EN ROUTE FROM CHS TO PIK, NR 1 HYD SYSTEM QUANTITY LOSS. EDP AND ADP DEPRESSURIZED, NO HELP, FIREWALL VALVE SHUT OFF, NO HELP. CONTINUED TO PIK, WILL REQUIRE ALTERNATE GEAR OPERATION FOR EXTENSION. WILL REQUIRE TOW FROM RUNWAY DUE TO NOSE GEAR STEERING INOP. REPAIRED LEAK IN NR 1 HYD SYSTEM RESEALED TRANSFER TUBE (RT STEERING CYLINDER) AND RE RIGGED NLG STEERING, OPS AND LEAK CHK OK PER 32-51-00, 32-51-05, 32-51-06.