# SDR SWAA2020050542906

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2020
- Submitted: May 5, 2020
- Operation: Air carrier
- Aircraft: [N460WN](https://openairdocs.org/aircraft/N460WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32464
- Aircraft time: 56,047 hours, 33,294 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- 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/SWAA2020050542906

## Discrepancy

***CORROSION*** ON INTERCOSTAL AT ACB BS767 - BS787 RBL21 WL155. / REMOVED DAMAGE FROM ACB INTERCOSTAL BS767-787 RBL-21 WL-155 FOUND TO BE OUT OF LIMIT IAW SRM 53-00-53-1A-2 PAR-4C DET-D LOCATED AND DRILLED NEW INTERCOSTAL P/N 146A8123U19 IAW SRM 51-40-05-0G-0 AND INSTALLED IAW SRM 51-40-02-0G-0 AND DWG #146A0081 REV A

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