# SDR SWAA2023052431282

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2023
- Submitted: May 25, 2023
- Operation: Air carrier
- Aircraft: [N959WN](https://openairdocs.org/aircraft/N959WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36674
- Aircraft time: 38,285 hours, 23,370 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Condition: Cracked
- 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/SWAA2023052431282

## Discrepancy

CRACKED INTERCOSTAL NEAR FASTENER HOLE; BS 277+7; LBL 3; WL 208.<[01] AFTER FURTHER INVESTIGATION FOUND CRACK ON INTERCOSTAL NEAR FASTENER HOLE BS277+7 LBL 3 WL208 TO BE LOCATED AT BS277+7 BL0; WL 208.1;[02] REMOVED INTERCOSTAL FROM BS277-BS294.5 BL0 IAW SRM 51-40-02;[03] VERIFIED CORRECTIVE ACTION 1 AND 2.;[04] LOCATED AND DRILLED NEW INTERCOSTAL PN#141A5410U3 FROM BS277-BS294 BL0 IAW SRM 51-40-05 AND IAW DWG#141A5400. OK TO INSTALL;[05] VERIFIED CORRECTION ACTION ITEM 4 AND OK TO INSTALL GIVEN.;[06] INSTALLED INTERCOSTAL PN#141A5410U3 FROM BS277-BS294 BL0 IAW SRM 51-40-05 AND IAW DWG#141A5400;[07] UPDATED MEASUREMENT TABLE;[08] TASK IS COMPLETE.;[09] VERIFIED MEASUREMENT TABLE.

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