# SDR DXTA2026011706535

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 13, 2026
- Submitted: January 17, 2026
- Operation: Air carrier
- Aircraft: [N933QS](https://openairdocs.org/aircraft/N933QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0362
- Aircraft time: 2,477 hours, 1,629 cycles
- System (JASC): [3297 · Landing Gear System Wiring](https://openairdocs.org/jasc/3297)
- Part: Wire Harness
- Part number: 84698002
- Part serial: NSN
- Condition: Damaged
- Location: Zone 700
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026011706535

## Discrepancy

NOSE GEAR UNSAFE LIGHT. : DURING GEAR EXTENSION, CREW OBSERVED THE NLG INITIALLY EXTENDED NORMALLY & DISPLAYED A GEAR UNSAFE INDICATION. CREW COMPLETED CHECKLIST & DIVERTED TO KLIT. PRIOR TO LANDING, CREW MANUALLY EXTENDED MLG, RECEIVING 3 GREEN/DOWN & LOCKED INDS, DECLARED AN EMERGENCY. UNEVENTFUL LANDING, CREW STOPPED ACFT ON RUNWAY & MET BY EMERGENCY VEHICLES. ACFT TOWED TO RAMP FOR MX.  PROCEEDED TO GVI OF NLG, NO FAULTS DETECTED.  PERFORMED WIRE CHECKS, VERIFIED WIRING FROM PIN 4 OF PG029 NLG DOWNLOCK SWITCH TO GROUND, NO DEFECTS. VERIFIED WIRING FROM PIN 5 OF PG029 CONNECTOR TO GSD 3 PIN 38 NO DEFECTS.   INSPECTED WIRING ON NLG HARNESS, IDENTIFIED A FEW NICKS IN HEAT SHRINK & TIGHT BEND IN HARNESS,  WIRE INSULATION NOT VISUALLY COMPROMISED. INSPD NLG DOWNLOCK SWITCH CONNECTOR & RECEPTADE  OF POSSIBLE BREACH OF MOISTURE. DETERMINED FINE DEBIRS DISCOVERED IN THE NLG DOWNLOCK SWITCH RECEPTACLE BREAKS THE SEAL ALLOWING MOISTURE TO ENTER. CLEANED & REMOVED DEBRIS FROM NLG DOWNLOCK SWITCH & CONNECTOR. REPLACED NLG HARNESS & SB680A-32-06, OPS CHKD GOOD. NO FAULTS DETECTED, WORK PERFORMED REF AMM 32-20-00 & SB580A-32-06.

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