# SDR HNAA2021042600161

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2021
- Submitted: April 26, 2021
- Operation: Air carrier
- Aircraft: [N691AE](https://openairdocs.org/aircraft/N691AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500860
- Aircraft time: 38,021 hours, 34,082 cycles
- System (JASC): [3222 · Nose/Tail Landing Gear Strut/Axle](https://openairdocs.org/jasc/3222)
- Part: Valve
- Condition: Failed
- Location: Nlg Strut
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2021042600161

## Discrepancy

SHORTLY AFTER TAKEOFF EICAS DISPLAYED LG AIR GRND FAIL AND LANDING GEARS WOULD NOT RETRACT.  TROUBLESHOT USING FIM 32-63-00-810-802-A STEP 1 2 AND 14,  FOUND NLG TO BE IMPROPERLY SERVICED. REPLACED FILLING PORT CHARGING VALVE ON NLG SERVICED NLG IAW AMM TASK 32-20-01-600-801-A.

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