# SDR SIMA200727408

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 29, 2007
- Submitted: October 3, 2007
- Operation: Air carrier
- Aircraft: N811AE
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145529
- Aircraft time: 14,325 hours, 12,147 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Electronic Unit
- Part number: 355022002
- Part serial: 1510
- Condition: Malfunctioned
- Location: Mlg
- 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/SIMA200727408

## Discrepancy

AFTER TAKEOFF, CREW TRIED TO RETRACT THE GEAR AND NOTHING HAPPENED.  NO SINK RATE WAS BELOW 200 FT/MIN.  INSPECTED LANDING GEAR AND FOUND NLG DOWN LOCK PROX SWITCHES OUT OF ADJUSTMENT.  ADJUSTED NLG DOWN LOCK SWITCHES IAW EMB MM 32-63-05-700-804-A. ALSO REMOVED AND REPLACED LANDING GEAR ELECTRONIC CONTROL UNIT IAW EMB MM 32-32-01-000-801-A. PERFORMED GEAR RETRACT IAW EMB MM 32-30-00-710-001 LANDING GEAR SYSTEM OPS CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE

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