# SDR DXTA2026101210101

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 9, 2026
- Submitted: October 12, 2026
- Operation: Air carrier
- Aircraft: [N413QS](https://openairdocs.org/aircraft/N413QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500937
- Aircraft time: 1,840 hours, 1,448 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Priority Valve
- Part number: 22170030403
- Part serial: 00496
- Condition: Defective
- Location: Zone 700
- Stage of operation: LD
- How discovered: O
- Nature of condition: E, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026101210101

## Discrepancy

REPEAT WRITE UP. ON APPROACH SELECTED MLG DOWN & A LOUD BANG HEARD & FELT FROM THE NLG.  MLG INDICATORS TURNED GREEN WHILE NLG INDICATOR REMAINED YELLOW FOR A PERIOD LONGER THAN USUAL. EVENTUALLY IT TURNED GREEN.  ABORTED  APPROACH & EXECUTED A GO AROUND & SELECTED MLG UP AS NORMAL. NO ABNORMAL NOISE OR JARRING BANG WAS FELT WHEN THIS WAS DONE. CLIMBED TO ALTITUDE AND DECIDED TO DIVERT BACK TO ORIGIN AIRPORT KDAL. ON SECOND APPROACH WHEN SELECTING MLG DOWN, THERE WAS A SIGNIFICANTLY LESS INTENSE BANG (SEEMED MORE NORMAL) AND INDICATOR FOR NLG TURNED GREEN SOONER THAN FIRST APPROACH.  NORMAL LANDING WITH NORMAL BRAKING & TAXING WAS SAFELY COMPLETED.  REPLACED VALVE. OPS CHKD GOOD IAW AMM 32-31-00-720-801-A.

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