# SDR SWAA2023080976092

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2023
- Submitted: August 9, 2023
- Operation: Air carrier
- Aircraft: [N965WN](https://openairdocs.org/aircraft/N965WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36677
- Aircraft time: 38,362 hours, 23,630 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/SWAA2023080976092

## Discrepancy

CRACKED INTERCOSTAL AT FWD CABIN BS291 BL0 WL208.<[01] VERIFIED APPLICABILITY FOR SRM 53-10-51-1A-1 ALLOWABLE DAMAGE 1.;[02] CRACK FOUND TO BE OUT OF LIMITS PER SRM 53-10-51-1A-1; PAR. 4.B.(1).(A). FIG. 105; DETAIL A.<BR>REMOVED INTERCOSTAL FROM BS277 - BS294; WL208; BL0 PER SRM 51-40-02-0G-0.<BR>RECEIVED FROM; TOOL ROOM NEW INTERCOSTAL P/N 141A5410U3.<BR>LOCATED AND DRILLED PER SRM 51-40-05-0G-0 AND BOEING DWG 141A5400; OK TO INSTALL.;[03] MEASUREMENTS TABLE UPDATED.;[04] VERIFIED CORRECTIVE ACTION #1; #2.<BR>VERIFIED OK TO INSTALL NEW INTERCOSTAL.;[05] INSTALLED INTERCOSTAL BETWEEN BS277 - BS294; WL208; BL0 PER SRM 51-40-02-0G-0 AND BOEING DWG. 141A5400.;[06] VERIFIED CORRECTIVE ACTION #5.;[07] VERIFIED MEASUREMENTS.

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