# SDR SWAA2023071256999

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2023
- Submitted: July 12, 2023
- Operation: Air carrier
- Aircraft: [N963WN](https://openairdocs.org/aircraft/N963WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36676
- Aircraft time: 38,123 hours, 23,431 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: UNKNOWN
- Condition: Cracked
- Location: Zn 200 Fus Top
- 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/SWAA2023071256999

## Discrepancy

CRACKED INTERCOSTAL AT FWD CABIN BS328+7 LBL46 WL208.<[01] REMOVED INTERCOSTAL FROM BS328-BS344 AT LBL 46 WL 208 IAW SRM 51-40-02;[02] DAMAGE FOUND AT FWD CABIN INTERCOSTAL BS 328+7; LBL-46; WL 208 FOUND TO BE OUT OF LIMIT IAW SRM 53-1-51-1A-1 DET.4B(1A); FIG 105-N;[03] LOCATED AND DRILLED NEW INTERCOSTAL P/N 141A5410-16 LOT#1530387-1 AT BS 328 TO BS 344 LBL 46 WL 208 IAW SRM 51-40-05-0G-0 AND DWG# 141A5400.OK TO INSTALL;[04] VERIFIED STEPS #1; #2; AND #3. OK TO INSTALL.;[05] INSTALLED NEW INTERCOSTAL AT BS 328 TO BS 344; LBL 46; WL 208 IAW SRM 51-40-02-0G-0 AND DWG# 141A5400.;[06] VERIFIED STEP #5;[07] VERIFIED STEP #5

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