# SDR 2007UALA02070

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 13, 2007
- Submitted: June 20, 2007
- Operation: Air carrier
- Aircraft: [N398UA](https://openairdocs.org/aircraft/N398UA), registered now
- Make and model: Boeing 737322
- Aircraft serial: 24673
- Aircraft time: 47,609 hours, 32,884 cycles
- Engine: Cfmint CFM563C1
- System (JASC): [3250 · Landing Gear Steering System](https://openairdocs.org/jasc/3250)
- Part: Collar
- Condition: Binding
- Location: Nlg Steering
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2007UALA02070

## Discrepancy

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.

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