# SDR DLL10000690

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 8, 2000
- Submitted: April 19, 2000
- Operation: Air carrier
- Aircraft: N1731D
- Make and model: Lkheed 10113851
- Aircraft serial: 193C1200
- Aircraft time: 59,730 hours, 27,217 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Part number: 1503543139
- Condition: Corroded
- 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/DLL10000690

## Discrepancy

THE FUSELAGE SKIN AND FACTORY .020 THICK DOUBLER WERE FOUND CORRODED AT FS 1645 AT STRINGER 29.  THE CORROSION WAS      REMOVED WITH A 21 (LONGITUDINAL) X 4.4 (CIRCUMFERENTIAL) CUTOUT THROUGH THE SKIN AND DOUBLER.  THE CUTOUT WAS        REPAIRED WITH AN EXTERNAL ALUMINUM DOUBLER AND TRIPLER PER ER/A 369725-14, REV A.

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