# SDR GR4D20180228002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2018
- Submitted: February 28, 2018
- Operation: Air carrier
- Filed by: [Gulfstream Services Corporation, repair station GR4D216M](https://openairdocs.org/faa-repair-station/GR4D216M/gulfstream-services-corporation.md) (OpenAirDocs)
- Aircraft: N440QS
- Make and model: Gulstm GIVXG450
- Aircraft serial: 4025
- Aircraft time: 9,370 hours, 4,553 cycles
- System (JASC): [5712 · Wing, Rib/Bulkhead](https://openairdocs.org/jasc/5712)
- Part: Rib
- Part number: 1159WM2002336
- Condition: Corroded
- Location: Rt Wing
- Part time: 9,370 hours, 4,553 cycles
- Component: Sponson, Gulstm
- Component part number: 1159W2004942
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GR4D20180228002

## Discrepancy

CORROSION UNDER R/H MAIN LANDING GEAR TRUNNION BEARINGS ON SPONSON RIB. REQUIRES MAJOR REPAIR.

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