Service difficulty report · O-Ring · Boeing 747200

Difficulty date
July 10, 2007
Submitted
July 11, 2007
Operation
Air carrier
Aircraft
N521UP
Make and model
Boeing 747200
Aircraft serial
21944
Part
O-Ring
Condition
Cut
Location
Steering Sys
Stage of operation
AP
How discovered
O
Nature of condition
K
Precautionary procedure
H

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

What was found

INSPECTION TYPE:N/A HYDRAULIC SYSTEM NR 1 FLUID LOSS IN FLIGHT. FOUND CUT O-RING ON LEFT NOSE WHEEL STEERING ACT TRANSFER TUBE. REPLACED SEALS IAW 32-51-05. OPS AND LEAK CHECKS GOOD DUE TO HYD FLUID LOSS. NR 1 EDP REMOVED AND REPLACED IAW MM 29-11-05. OPS AND LEAK CHECKS GOOD. CASE DRAIN AND PRESS FILTERS REPLACED. OPS AND LEAKS CHECK GOOD.

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