Service difficulty report · Collar · Boeing 737322

Difficulty date
June 13, 2007
Submitted
June 20, 2007
Operation
Air carrier
Aircraft
N398UA
Make and model
Boeing 737322
Aircraft serial
24673
Aircraft time
47,609 hours, 32,884 cycles
Engine
Cfmint CFM563C1
Part
Collar
Condition
Binding
Location
Nlg Steering
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

NOSE WHEEL STEERING BINDING DUPLICATED ISOLATED TO STEERING COLLAR: DISASSEMBLED STEERING COLLAR FOUND LITTLE TO NO GREASE AND A LARGE AMOUNT OF WATER PRESENT. INSPECTED PARTS NO DAMAGE NOTED, LUBED PARTS AND REASSEMBLED STEERING COLLAR REF MM 32-51-61 PG 401. NO BINDING NOTED DURING STEERING TEST AND TAXI TEST. [07-24-07] REPLACED STERRING METERING VALVE. VALVE PASSED ALL FUNCTIONAL TESTING.