# SDR USAA2009042490974

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2009
- Submitted: April 24, 2009
- Operation: Air carrier
- Aircraft: [N441US](https://openairdocs.org/aircraft/N441US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24812
- Aircraft time: 50,086 hours, 35,130 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 6545769
- 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/USAA2009042490974

## Discrepancy

SAL - Q6 - MAJOR REPAIR - CRACK ON EXTERNAL DOUBLER AT AFT SERVICE DOOR CUTOUT AT FUSELAGE SKIN LOWER LOBE, BS 527 BETWEEN S28L TO S28R.  REPAIRED EXTERNAL DOUBLER AT AFT SERVICE DOOR CUTOUT AT FUSELAGE SKIN LOWER LOBE, BS 527 BETWEEN S28L TO S28R IAW US AIRWAYS TYPICAL REPAIR 53-30-10.

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