# SDR SWAA2022021872268

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 27, 2018
- Submitted: February 21, 2022
- Operation: Air carrier
- Aircraft: N720WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27854
- Aircraft time: 70,430 hours, 41,810 cycles
- System (JASC): [5310 · Fuselage Main, Structure](https://openairdocs.org/jasc/5310)
- Part: Intercostal
- Condition: Corroded
- Location: Aft Cargo Compt
- 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/SWAA2022021872268

## Discrepancy

AFT CARGO BAY INTERCOSTAL STA.907 TO STA.927 LBL 21 HAS CORROSION AT 2 EACH FASTNERS / MARKED / REMOVED CORROSION AT STA 907 TO 927 LBL 21 IAW SRM 53-00-53-1A-2 FIG 12 SHEET 1. VERIFIED MATERIAL LIMITS. REMOVED .016' REMAINING .055' ORIG. MAT. .071'. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. REMOVED AND REPLACED INTERCOSTAL AT STA 907 TO 927 LBL21 IAW SRM 51-40-02-0G-0; 51-40-05-0G-0 & DWG 147A7401 REV C. APPLIED CIC IAW 737-700 AMM 51-21-91-620-802

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