# SDR DXTA2025102005339

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2025
- Submitted: October 20, 2025
- Operation: Air carrier
- Aircraft: [N303QS](https://openairdocs.org/aircraft/N303QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500141
- Aircraft time: 10,170 hours, 7,978 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Selector Valve
- Part number: 73421
- Part serial: 00381
- Condition: Inoperative
- Location: Zone 700
- Stage of operation: CR
- 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/DXTA2025102005339

## Discrepancy

AFTER TAKEOFF ,LANDING GEAR WOULD NOT RETRACK.  PERFORMED FIM-4885 - 32-61-00-810-815-A - LG SLOW TO EXTEND OR RETRACT. 32-31-00-720-801-A - EXTENSION AND RETRACTION SYSTEM - FUNCTIONAL CHK, GEAR SWUNG 20 TIMES WITH NO FAULTS, ACCOMPLISHED TASK 29-10-00-860-801-A.  NO FAULTS NOTED. GEAR SWUNG AN ADDITIONAL 10 TIMES AFTER BLEED, WITH NO FAULTS.  SERVICED NLG IAW AMM 12-14-03.  REMOVED INOP SELECTOR VALVE IAW AMM 32-31-04.  INSTALLED OVERHAULED SELECTOR VALVE IAW AMM 32-32-04. PERFORMED EXTENSION AND RETRACTION FUNCTIONAL CHK, OPS CHKD GOOD IAW 32-31-00, PERFORMED BLEEDING OF THE MAIN HYD SYS IAW 29-10-00. C.H. 21. OPS CHKD GOOD.

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