# SDR SWAA2023053144675

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 2, 2023
- Submitted: May 31, 2023
- Operation: Air carrier
- Aircraft: [N285WN](https://openairdocs.org/aircraft/N285WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32536
- Aircraft time: 51,630 hours, 31,054 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: UNKNOWN
- 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/SWAA2023053144675

## Discrepancy

CRACKED INTERCOSTAL BS 328-344 LBL 44 WL 208.<[01] CRACKED INTERCOSTAL FOUND TO BE .563' LONG FROM CENTER FASTENER HOLE UPPER FLANGE ORIGINAL THICKNESS .040 FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1 FIG 105 (A) REMOVED CRACKED DAMAGED INTERCOSTAL AT BS 328 TO BS 344 LBL 44 WL 208 IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-40-05-0G-0 OK TO INSTALL;[02] VERIFIED CORRECTIVE ACTION #1.<BR>VERIFIED OK TO INSTALL NEW INTERCOSTAL.;[03] INSTALLED NEW INTERCOSTAL AT BS 328 TO BS 344 LBL 44 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A5400;[04] VERIFIED CORRECTIVE ACTION #3.;[05] UPDATED AND COMPLETED MEASUREMENTS TABLE;[06] VERIFIED MEASUREMENTS.

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