# SDR SWAA2022092765183

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 19, 2022
- Submitted: September 27, 2022
- Operation: Air carrier
- Aircraft: [N489WN](https://openairdocs.org/aircraft/N489WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33855
- Aircraft time: 57,460 hours, 34,246 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Corroded
- Location: Fuselage
- 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/SWAA2022092765183

## Discrepancy

CORROSION ON INTERCOSTAL FROM STA 312 TO 328; WL 208; LBL 12. / [01] REMOVED PANEL BREAK AT STA 312 TO 328 WL 208 LBL 12 IAW SRM 51-40-02<BR><BR>REMOVED CORROSION ON PANEL BREAK BS 314 IN L=2' X W=2' X D=0.40' FROM ORIGINAL TICKNESS OF 0.80' FOUND TO BE OUT OF LIMITS.<BR><BR>REMOVED CORROSION ON PANEL BREAK BS 326 IN L=2' X W=2' X D=0.40' FROM ORIGINAL TICKNESS OF 0.80' FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1 PAR 4F E.<BR><BR>USED TOOL :<BR>ID:LS000459 ; S/N: 67127987 ; DATE:01/2022 ; DUE: 01/2023.;[02] PANEL BREAK IT IS OUT OF LIMITS DUE TO NO LIMITS GIVEN IN THE SRM BY REPAIRED BY REPLACEMENT OF PART IAW SRM 51-10-02 PAR 9.;[03] VERIFIED CORRECTIVE ACTION #2.;[04] LOCATED AND DRILLED NEW INTERCOSTAL FROM BS 312 TO 328 WL 208 LBL 12 IAW SRM 51-4O-05-0G- 0 ; AND OK TO INTALL;[05] CERTIFY;[06] VERIFIED CORRECTIVE ACTION 4; OK TO INSTALL GIVEN.;[07] INTALLED NEW INTERCOSTAL FROM BS 312 TO 328; WL 208; LBL 12. IAW SRM 51-40-02-0G-0 AND DWG #141A5400;[08] UPDATED P/N AND PART REQUIREMENT;[09] CERTIFY;[10] UPDATED CHART;[11] CERTIFY;[12] VERIFIED CORRECTIVE ACTION 7.;[13] VERIFIED MEASUREMENT TABLE.

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