# SDR 3EJA979JS102625

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 26, 2025
- Submitted: January 8, 2026
- Operation: Air carrier
- Aircraft: [N979JS](https://openairdocs.org/aircraft/N979JS), registered now
- Make and model: Cessna 750
- Registry model: [Cessna 750](https://openairdocs.org/model/cessna-750) (OpenAirDocs)
- Aircraft serial: 7500225
- Aircraft time: 8,644 hours, 4,987 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Roller
- Part number: 530710604
- Condition: Worn
- Location: Zone 700
- Part time: 8,644 hours, 4,987 cycles
- Stage of operation: CL
- 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/3EJA979JS102625

## Discrepancy

CLIMBING THROUGH ABOUT FL340 WE EXPERIENCED A  LOUD BANGING NOISE WITH VIOLENT SHAKING. THE BANGING AND NOISE CONTINUED IN RHYTHM AND IN UNISON WITH THE GEAR RED UNSAFE LIGHT FLASHING.  PERFORMED REPACK OF NLG OLEO STRUT IAW MM 32-20-02.  CHECKED RIGGING OF NOSE GEAR RELEASE CABLES IAW MM 32-30-06.  REPLACED NLG UPLOCK ROLLER IAW AMM 32-20-00 & REPLACED HUB CAP GASKET ON RT NLG WHEEL ASSY IAW AMM 32-41-01. PERFORMED GEAR SWINGS AND CHKD DR RIGGING IAW AMM 52-80-20. OPS CHKD GOOD.

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