# SDR SWAA2023062155883

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 2, 2023
- Submitted: June 21, 2023
- Operation: Air carrier
- Aircraft: [N8537Z](https://openairdocs.org/aircraft/N8537Z), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63595
- Aircraft time: 19,945 hours, 9,824 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: UNKNOWN
- Condition: Corroded
- Location: Zn 100 Fus Lower
- 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/SWAA2023062155883

## Discrepancy

AFT CARGO INTERCOSTAL RBL 21 BETWEEN STA 747 AND STA 767 HAS CORROSION<[01] FOUND CORROSION TO BE OUT OF ALLOWABLE LIMITS PER SRM 5300-53-1A-2.;[02] REMOVED AND REPLACED AFT CARGO INTERCOSTAL AT STA 747-767 RBL 21 PER SRM 51-40-02.;[03] C/W INSPECTION OF WORK PERFORMED FOR CORRECTIVE ACTIONS 1 AND 2 REF SRM 51-40-02 AND SRM 53-00-53-1A-2.

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