# SDR UIEA2011032800166

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2011
- Submitted: April 1, 2011
- Operation: Air carrier
- Aircraft: [N492MC](https://openairdocs.org/aircraft/N492MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29253
- Aircraft time: 54,065 hours, 9,703 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Dented
- Location: Bs 1540-1560
- 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/UIEA2011032800166

## Discrepancy

DURING D1 CHECK INSP, A DENT WAS FOUND AT BS 1540 TO 1560, AND S43R TO S36R. (THE DENT WAS REPAIRED IAW SRM 53-00-01-2R-1, FIG 201 IAW NRC 50556; CATEGORY B REPAIR IAW SRM 53-00-01-2R-1 FIG 201 TABLE IV, WITH ONGOING HFEC INTERNAL INSPECTIONS OR REPAIR 15,000 FC AFTER INSTALLATION AND EVERY 6,000 FLIGHT CYCLES THEREAFTER.)

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