# SDR SIMA20120706002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2012
- Submitted: July 9, 2012
- Operation: Air carrier
- Aircraft: [N646AE](https://openairdocs.org/aircraft/N646AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145213
- Aircraft time: 29,580 hours, 27,532 cycles
- System (JASC): [3220 · Nose/Tail Landing Gear](https://openairdocs.org/jasc/3220)
- Part: Unknown
- Condition: Low
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20120706002

## Discrepancy

ON FLIGHT 4276 THE CREW REPORTED THAT DURING ROTATION RECEIVED A "LDG AIR/GND FAIL" EICAS MESSAGE.  THE MESSAGE IMMEDIATELY WENT AWAY.  THE CREW DECLARED AN EMERGENCY.  THE CREW RECEIVED THE SAME MESSAGE ON TOUCHDOWN/ROLLOUT.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  SERVICED NOSE LANDING GEAR IAW EMB AMM 32-20-01.  PERFORMED AN OPERATIONAL CHECK OF AIR/GROUND WEIGHT ON WHEELS SYSTEM IAW EMB AMM 32-63-00.  NO DEFECTS NOTED.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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