# SDR HNAA2017121900395

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2017
- Submitted: December 19, 2017
- Operation: Air carrier
- Aircraft: N329EN
- Make and model: Dhav DHC8311
- Aircraft serial: 290
- Aircraft time: 53,947 hours, 63,722 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Condition: Failed
- Location: Mlg
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HNAA2017121900395

## Discrepancy

GEAR DID NOT EXTEND AFTER HANDLE SELECTION.   CREW INTIATED A GO AROUND AND APROXIMATELY 30 SECONDS AFTER HANDLE SELECTION GEAR CAME DOWN AND LOCKED.  UNSAFE INDICATION UNTIL GEAR CAME DOWN AND LOCKED.   R & R THE LANDING GEAR SELECTOR VALVE IAW WC 32-30-41R,   OPS CHECKED GOOD.

---
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.