# SDR UIEA2010061600077

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 2010
- Submitted: July 6, 2010
- Operation: Air carrier
- Aircraft: N523MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 21782
- Aircraft time: 100,703 hours, 20,573 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Rib
- Condition: Cracked
- Location: Stab Fairing
- 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/UIEA2010061600077

## Discrepancy

NRC 1142 :HORIZ STAB" LT STAB L/E OTBD FAIRING HAS 4 CRACKS AT RIB ANGLE.  (CRACKED AREA TRIMMED OUT. REINFORCED AREA WITH ANGLE AND FILLER PN N523MC NRC 1142 1/2 IAW SRM 55-10-06 FIG 1 AND FASTENERS INSTL IAW SRM 51-30-02).

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