# SDR SWAA2021021143547

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2021
- Submitted: February 11, 2021
- Operation: Air carrier
- Aircraft: N564WN
- Make and model: Boeing 737-73V
- Registry model: [Boeing 737-73V](https://openairdocs.org/model/boeing-737-73v) (OpenAirDocs)
- Aircraft serial: 30244
- Aircraft time: 50,417 hours, 34,956 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Intercostal
- Part number: 141A5410
- Condition: Cracked
- Location: Fuselage
- 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/SWAA2021021143547

## Discrepancy

CRACK WEB - INTERCOSTAL FLOOR STRUCTURE LOCATED BETWEEN BS 312 TO BS 328 AND RBL 31 FWD GALLEY AND LAV (1 EA) / EVALUATED ALLOWABLE DAMAGE FOR CRACK ON WEB-INTERCOSTAL LOC FLOOR STRUCTURE BS312 TO BS 328 AND RBL 31 FWD GALLEY AND LAV AND NO FOUND ON SRM WEB-INTERCOSTAL WAS REPLACED IAW B737-700 SRM 51-40-02 SRM 51-10-02 ITEM 9 DWG 141A5400 SHEET 26 REV - MADE REPAIR INTERCOSTAL IAW DWG 141A5410 REV V MATERIAL USED 7075-TO 0.040' P/O 2015506435 IAW DWG 141A5410 HEAT TREATED AND CONVERTED FROM TO TO T62 TOOL USED TEMPERATURE CONTROLLED P/N P3015GOE500000 S/N 112031023 DUE DATE 25FEB21 MEASURE OF CRACK IS L=0.404' TOOL USED CALIPER P/N 500-196-30 S/N 14334557 DUE DATE 29-OCT-21

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