# SDR SWAA2023062048958

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2023
- Submitted: June 20, 2023
- Operation: Air carrier
- Aircraft: [N429WN](https://openairdocs.org/aircraft/N429WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 33658
- Aircraft time: 66,602 hours, 39,316 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/SWAA2023062048958

## Discrepancy

INTERCOSTAL AT AFT INNER RADIUS IS CRACKED BS 947; RBL 23; WL 165. (MARKED)<[01] REMOVED INTERCOSTAL FROM AFT CARGO BAY BS 927 TO BS 947 RBL 23 WL 165 IAW SRM 51-40-02-0G-0;[02] VERIFY APPLICABILITY PER SRM NOT ALLOWABLE DAMAGE DO NOT HAVE ENTRIES ARE CALLED REPAIRABLE BY REPLACEMENT IAW SRM 51-10-02 STEP 9 C;[03] RECEIVED NEW INTERCOSTAL P/N 147A7500-22 LOT#1524304-2.LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG147A7500.<BR>OK TO INSTALL;[04] CORRECTION IDENTIFICATION SRM 53-70-53-0I-2;[05] VERIFIED CORRECTIVE ACTION ITEMS 2 AND 3. <BR>OKAY TO INSTALL NEW INTERCOSTAL IS GIVEN.;[06] INSTALLED NEW INTERCOSTAL FROM BS 927 TO BS 947 RBL23 WL 165 IAW SRM 51-40-02 AND DWG 147A7500;[07] VERIFIED MEASUREMENT TABLE;[08] VERIFIED CORRECTIVE ACTION 6

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