# SDR FY4Y20121116197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2012
- Submitted: November 16, 2012
- Operation: General aviation
- Aircraft: [N705AA](https://openairdocs.org/aircraft/N705AA), registered now
- Make and model: Boeing 727-200
- Registry model: [Boeing 727-200](https://openairdocs.org/model/boeing-727-200) (OpenAirDocs)
- Aircraft serial: 22462
- Aircraft time: 65,509 hours, 30,805 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Corroded
- Location: Zone 100
- Part time: 65,509 hours, 30,805 cycles
- 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/FY4Y20121116197

## Discrepancy

DURING PERFORMED 7C CHECK, CORROSION WAS FOUND ON FUSELAGE LOWER LOBE SKIN PANEL AT STATION BS 1010, WL 148 BETWEEN S-28R AND S-29R. (DIMENSIONS OF CORROSION AREA:5 3/8" × 2").   AFTER BLEND OUT CORROSION, THE PENETRATION DEPTH (0.019") WAS OVER LIMIT IAW SRM 53-30-1, PAGE 2C.

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