# SDR RAIA2008112500004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 22, 2008
- Submitted: November 25, 2008
- Operation: Air carrier
- Aircraft: N809HK
- Make and model: Emb EMB-145EP
- Registry model: [EMB EMB-145EP](https://openairdocs.org/model/embraer-emb-145ep) (OpenAirDocs)
- Aircraft serial: 145187
- Aircraft time: 21,116 hours, 19,949 cycles
- System (JASC): [3222 · Nose/Tail Landing Gear Strut/Axle](https://openairdocs.org/jasc/3222)
- Part: O-Ring
- Condition: Worn
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RAIA2008112500004

## Discrepancy

DURING CLIMB, CREW RECEIVED A LG AIR/GND FAIL MESSAGE ON THE EICAS.  MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND A LEAKING O-RING ON THE NLG SERVICING PORT.  THE O-RING WAS REPLACED, NLG WAS SERVICED, AND AN OPERATIONAL CHECK OF THE EXTENSION AND RETRACTION SYSTEM WAS PERFORMED.  OPS CHECKED GOOD.

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