# SDR SWAA2022021492550

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2018
- Submitted: February 14, 2022
- Operation: Air carrier
- Aircraft: [N7731A](https://openairdocs.org/aircraft/N7731A), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32677
- Aircraft time: 38,714 hours, 18,449 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Aft Cargo Bay
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2022021492550

## Discrepancy

***CORROSION*** AFT CARGO BAY; INTERCOSTAL HAS CORROSION LOWER SURFACE FASTENER HOLES; BS727A + 18.5'; RBL21.5. / DAMAGE EVALUATED ACB INTERCOSTAL P.S. 727A & 18.5' RBL 21.5 WAS FOUND TO BE OUT OF LIMITS DUE TO DAMAAGE PROXIMITY TO HOLES PER SRM 53-00-53-1A-2. REMOVED DAMAGED INTERCOSTAL. RECIEVED NEW INTERCOSTAL LOCATED; DRILLED AND INSTALLED PER SRM 51-40-02-0G-0 AND PER DWG 146A7500.

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