# SDR HDNA2019013100003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2019
- Submitted: January 31, 2019
- Operation: Air carrier
- Aircraft: [N157UM](https://openairdocs.org/aircraft/N157UM), registered now
- Make and model: Urocop EC 155B
- Registry model: [Urocop EC 155B](https://openairdocs.org/model/eurocopter-ec-155b) (OpenAirDocs)
- Aircraft serial: 6933
- Aircraft time: 2,906 hours
- Engine: Tmeca ARRIEL2C2
- Engine time: 2,906 hours
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Downlock Switch
- Part number: 704A41441008
- Part serial: 2957
- Condition: Intermittent
- Location: Landing Gear
- Part time: 2,906 hours
- Stage of operation: LD
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HDNA2019013100003

## Discrepancy

DURING LANDING, GEAR INDICATOR SHOWED ONLY 2 GEAR DOWN AND LOCKED.

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