# SDR CHQA201000128

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 23, 2010
- Submitted: June 25, 2010
- Operation: Air carrier
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145698
- Aircraft time: 18,664 hours, 15,305 cycles
- Engine: Allsn AE3007A
- Engine time: 14,052 hours, 11,569 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Proximity Switch
- Part number: 8005701
- Condition: Faulty
- Location: Nlg
- 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/CHQA201000128

## Discrepancy

CREW REPORTED A LANDING GEAR AIR/GROUND FAIL MESSAGE AFTER TAKEOFF AND THE GEAR WOULD NOT RETRACT WHEN COMMANDED.  THE AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT INCIDENT.  MAINTENANCE TROUBLESHOT PER FIM 32-63-00 AND FOUND THE NOSE LANDING GEAR WOW PROX SWITCH TO BE AT FAULT.  THE PROX SWITCH WAS REPLACED AND THE AIR/GROUND SYSTEM OPS CHECK GOOD.

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