# SDR AALA201711039002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2017
- Submitted: November 3, 2017
- Operation: Air carrier
- Aircraft: [N916US](https://openairdocs.org/aircraft/N916US), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6420
- Aircraft time: 10,075 hours, 3,950 cycles
- System (JASC): [3260 · Landing Gear Position and Warning](https://openairdocs.org/jasc/3260)
- Part: Control Unit
- Part number: 664700500A4D
- Condition: Faulty
- Location: Nlg
- 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/AALA201711039002

## Discrepancy

NOSE GEAR DOWN GREEN LIGHT IS INTERMITTENT.  DID NOT SHOW GREEN WHEN GEAR LOWERED.  CAME ON LATER,  ALSO FLASHED OFF AND ON,  DURING TAXI IN. TROUBLESHOT AND FOUND FAULTY LANDING GEAR CONTROL UNIT, REPLACED IAW AMM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.