# SDR SWAA2021063078290

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 27, 2021
- Submitted: June 30, 2021
- Operation: Air carrier
- Aircraft: [N7825A](https://openairdocs.org/aircraft/N7825A), registered now
- Make and model: Boeing 737-7CT
- Registry model: [Boeing 737-7CT](https://openairdocs.org/model/boeing-737-7ct) (OpenAirDocs)
- Aircraft serial: 32750
- Aircraft time: 61,091 hours, 30,995 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Condition: Cracked
- Location: Bs 927-947 Bl0
- 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/SWAA2021063078290

## Discrepancy

AFT WET AREA FLOOR. SUPPORT INTERCOSTAL APPEAR CRACK AND HAS ELONGATED HOLES BETWEEN STA 927 & 947 BL -0 ; / [01] PERFORMED HFEC INSP ON AFT WET AREA FLOOR SUPPORT INTERCOSTAL B/W STA 927 & 947 BL-0; IAW B737 NDT P6 51-00-00 PROC.23; CRACK CONFIRMED.<BR>TOOL USED : NORTEC 600 BC:166317 STANDARD:126; [02] REMOVED CHORD STA 927 TO STA 947 IAW 51-40-02-0G-0.; [03] LOCATED AND DRILLED NEW CHORD AS PER SRM 51-40-02-0G-0; [04] VERIFIED DRILLING OF SUPPORT INTER COSTAL . STEP 3. OK TO INSTALL<BR>NEW PART.; [05] INSTALLED NEW CHORD AT AFT WET AREA FLOOR STA 927-947 BL0 AS PER B737-700 SRM 51-40-02-0G-0.; [06] VERIFIED INSTALLATION OF NEW CHORD AT AFT WET AREA FLOOR STA 927-947 BL0 AS PER B737-700 SRM 51-40-02-0G-0.

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