# SDR SWAA2023050318817

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2023
- Submitted: May 3, 2023
- Operation: Air carrier
- Aircraft: [N436WN](https://openairdocs.org/aircraft/N436WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32456
- Aircraft time: 66,420 hours, 39,287 cycles
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Pressure Deck
- 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/SWAA2023050318817

## Discrepancy

CRACK INDICATION FOUND ON HORIZONTAL PRESSURE DECK LBL 35 AT MAIN WHEEL WELL COMPARTMENT. CRACK LENGTH: 0.312 INCH. 2023-208334<[01] TOOL USED EDDY CURRENT EQUIPMENT P/N NORTEC 600D; S/N 60009161631 DUE DATE 31/JAN/24;[02] EDDY CURRENT EQUIPMENT P/N: NORTEC500D; S/N: N500X12101V022237; DUE DATE: 26-JAN-24.;[03] PERFORMED REPAIR LOC. BTW LBL 25 TO LBL 60 AND BS 663.75 TO BS 675; AND FASTENERS IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 PARAGRAPH 4<BR>SEE INDIVIDUAL SIGNSOFF BELOW.;[04] PERFORMED REPAIR LOC. BTW LBL 25 TO LBL 60 AND BS 663.75 TO BS 675; AND FASTENERS IAW B737-700 SRM 53-40-51-2R-2 REPAIR 2 PARAGRAPH 4 <BR>SEE INDIVIDUAL SIGNSOFF BELOW.RII

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