# SDR DXTA2023091295280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2023
- Submitted: September 12, 2023
- Operation: Air carrier
- Aircraft: [N524QS](https://openairdocs.org/aircraft/N524QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0062
- Aircraft time: 6,633 hours, 4,393 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Uplock Switch
- Part number: UNKNOWN
- Part serial: 69481013
- Condition: Faulted
- Location: Mlg
- Stage of operation: LD
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023091295280

## Discrepancy

DURING VISUAL APPROACH INTO APA, WHEN MLG HANDLE SELECTED DOWN,  RT MLG PRESENTED A YELLOW X & CAS MESSAGE MLG DISAGREE RT ILLUMINATED.  RAN CHECKLIST,   PULLED BLOWDOWN & MLG UPLOCK RELEASE. CONDITION REMAINED. TOWER VERIFIED ON A LOW APPROACH THAT ALL 3 MLG VISIBLE & A RETURN FOR LANDING WAS MADE WITHOUT INCIDENT.  MLG AURAL WARNING CONTINUED FROM FLAPS SELECTED FULL THRU LANDING & UNTIL ACFT SHUTDOWN.  JACKED ACFT, PERFORMED T/S & FOUND A FAULTY,   INTERMITTENT RT UPLOCK SWITCH.  REPLACED RT MLG UP-LOCK SWITCH ASSY, OPS CHECKED GOOD IAW MM 32-32-25, 32-32-00, 7-10-10.

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