# SDR GR4220161221001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2016
- Submitted: December 21, 2016
- Operation: Air carrier
- Filed by: [Gulfstream Aerospace Corporation, repair station G02R813X](https://openairdocs.org/faa-repair-station/G02R813X/gulfstream-aerospace-corporation.md) (OpenAirDocs)
- Aircraft: [N528QS](https://openairdocs.org/aircraft/N528QS), registered now
- Make and model: Gulstm GVSPG550
- Aircraft serial: 5042
- Aircraft time: 11,980 hours, 4,289 cycles
- System (JASC): [5520 · Elevator Structure](https://openairdocs.org/jasc/5520)
- Part: Structure
- Condition: Corroded
- Location: Elevator
- Part time: 11,980 hours, 4,289 cycles
- 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/GR4220161221001

## Discrepancy

DURING THE LEFT AND RIGHT ELEVATOR HINGE DETAILED INSPECTION, FOUND SURFACE CORROSION AROUND THE NUTPLATES ON THE UPPER AND LOWER TRAILING EDGE PANELS.

---
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.