# SDR VGQY2010063000040

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2010
- Submitted: June 30, 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): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Cracked
- Location: Fuselage
- 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/VGQY2010063000040

## Discrepancy

APU COMPARTMENT CROWN AREA AT STA 2638-2658 BETWEEN RIGHT STR 1 AND 2, FUSELAGE SKIN FOUND CRACKED.  TRIMMED OFF CRACKED SKIN MATERIAL PER SRM 53-30-00 REV 116 FIGURE 1A.  HFEC INSPECTION CARRIED OUT PER B747 NDTM D6-7170 REV 134 PART 6, SRM 51-00-00 FIGURE 23, FOUND NO CRACK EVIDENT.  A 12 INCH BY 10.50 INCH DOUBLER FABRICATED PER SRM 53-03-03 REV 116 AND INSTALLED PER SRM 53-30-03 REV 116 A.

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