# SDR VGQY2010070200043

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2010
- Submitted: July 2, 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): [5514 · Horizontal Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5514)
- Part: Doubler
- Condition: Cracked
- Location: Horizontal Stab
- 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/VGQY2010070200043

## Discrepancy

RT HORZ STAB TIP AREA, MOST O/B RIB WEB LWR CHORD FOUND CRACK.  REMOVED AND REPLACED EXISTING REPAIR DOUBLER PER SRM 52-30-06 REV 166, FIGURE 1.  REPAIR DIMENSION: 12.50 INCH BY 6.00 INCH; INSPECTION THRESHOLD:  20,000 FLIGHT CYCLES FROM DELIVERY OF AIRPLANE; METHOD: DETAILED VISUAL INSPECTION INTERVAL: 3,000 FLIGHT CYCLES.

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