# SDR SWAA2022101846416

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2022
- Submitted: October 25, 2022
- Operation: Air carrier
- Aircraft: [N8644C](https://openairdocs.org/aircraft/N8644C), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 35973
- Aircraft time: 26,784 hours, 12,542 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Cracked
- Location: Bs 344-360 Lbl1
- 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/SWAA2022101846416

## Discrepancy

CRACKED INTERCOSTAL BS 344-360 WL 208 LBL 1. / [01] CRACK DAMAGED INTERCOSTAL AT BS 344 TO BS 360 LBL 1 WL 208 CRACK LENGTH MEASURED AT .580' FOR AND AFT .662' FROM INBOARD EDGE USING MICROMETER PER2242 S/N UNKNOWN CAL DUE 01/2023 FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1 FIG 105 A; COMPLETED MEASUREMENTS TABLE;[02] VERIFIED CORRECTIVE ACTION ITEM 1.<BR><BR>VERIFIED MEASUREMENTS TABLE.;[03] REMOVED CRACK DAMAGED INTERCOSTAL AT BS 344 TO BS 360 LBL 1 WL 208 IAW SRM 51-40-02-0G-0 LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-40-05-0G-0 AND BOEING DWG 141A5400 OK TO INSTALL;[04] VERIFIED CORRECTIVE ACTION ITEM 3. OK TO INSTALL.;[05] INSTALLED INTERCOSTAL AT BS 344 TO BS 360 LBL 1 WL 208 IAW SRM 51-40-02-0G-0 AND BOEING DWG 141A5400 APPLIED CIC IAW AMM 51-21-91-620-802;[06] VERIFIED CORRECTIVE ACTION STEP 5.;[07] VERIFIED TASK CARD COMPLETE. VERIFIED MEASUREMENT TABLE COMPLETE.

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