# SDR DXTA2026091509696

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2026
- Submitted: September 16, 2026
- Operation: Air carrier
- Aircraft: [N891QS](https://openairdocs.org/aircraft/N891QS), registered now
- Make and model: Textrn TEXTRON700
- Aircraft serial: 7000153
- Aircraft time: 967 hours, 589 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Squat Switch
- Part number: 69480012
- Condition: Defective
- Location: Zone 700
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026091509696

## Discrepancy

DURING GEAR RETRACTION WE HEARD A RUMBLING NOISE, MULTIPLE YELLOW CAS MESSAGES ILLUMINATED INCLUDING GEAR DISAGREE, ADC SSEC MISCOMPARE, GEAR DOOR OPEN, AND FOR GEAR POSITION INDICATIONS DN IN A YELLOW BOX FOR THE NOSE, THEN TWO CROSS HATCHED YELLOW BOXES FOR EACH OF THE MAINS.  STARTED THE CHECKLIST WITH GEAR DOOR OPEN. RAN THE CHECKLIST AND WERE ABLE TO EXTEND THE GEAR USING THE GEAR HANDLE RECEIVING A 3 GREEN INDICATION.  REPLACED SQUAT SWITCH. OPS CHECK GOOD. IAW MM 32-60-10.

---
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.