# SDR VGQY2010051800001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2010
- Submitted: May 19, 2010
- Operation: Air carrier
- Filed by: [St Engineering Aerospace Services Company Pte. Ltd, repair station VGQY082L](https://openairdocs.org/faa-repair-station/VGQY082L/st-engineering-aerospace-services-company-pte-ltd.md) (OpenAirDocs)
- Aircraft: [N820SA](https://openairdocs.org/aircraft/N820SA), registered now
- Make and model: Boeing 747243B
- Aircraft serial: 23476
- Aircraft time: 84,534 hours, 13,992 cycles
- System (JASC): [7120 · Engine Mount Section](https://openairdocs.org/jasc/7120)
- Part: Mount
- Part number: 65B943503
- Condition: Corroded
- Location: Nr 4 Engine
- 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/VGQY2010051800001

## Discrepancy

CORROSION PRODUCTS (RUST) NR 4 ENGINE / AFT LOWER MOUNT / MATING SURFACE.  REMOVED AND REPLACED PER AMM 71-21-04 REV 90.

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