# SDR CHQA20130416116

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2013
- Submitted: April 22, 2013
- Operation: Air carrier
- Aircraft: N271SK
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145305
- Aircraft time: 28,207 hours, 26,754 cycles
- Engine: Rroyce AE3007A1P
- Engine time: 18,521 hours, 17,420 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Electronic Unit
- Part number: 355022003
- Part serial: 4157
- Condition: Faulty
- Location: Landing Gear
- Part time: 24,413 hours, 20,674 cycles
- 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/CHQA20130416116

## Discrepancy

CREW REPORTED THAT ON CLIMBOUT THE LANDING GEAR WOULD NOT RETRACT.  THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK AND WERE ABLE TO RETRACT THE LANDING GEAR BUT RECEIVED SEVERAL WARNING MESSAGES.  THE CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED THE LANDING GEAR ELECTRONIC UNIT AND THE NOSE LANDING GEAR WEIGHT ON WHEELS PROXIMITY SWITCH.  OPERATIONAL CHECKS OF THE LANDING GEAR SYSTEM WERE GOOD WITH NO FURTHER DEFECTS NOTED.

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