# SDR CALA2021110802059

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 2021
- Submitted: November 8, 2021
- Operation: Air carrier
- Aircraft: [N32404](https://openairdocs.org/aircraft/N32404), registered now
- Make and model: Boeing 737900
- Aircraft serial: 30121
- Aircraft time: 57,204 hours, 23,368 cycles
- System (JASC): [5700 · Wing Structure](https://openairdocs.org/jasc/5700)
- Part: Pressure Web
- Part number: NA
- Condition: Cracked
- Location: Btw Lbl45.64 - 4
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021110802059

## Discrepancy

CRACK FOUND AT L/H VERTICAL PRESSURE WEB BETWEEN LBL 45.64 AND LBL 40.00 CRACK LENGTH 0.787IN REF AAR N/R 9635562 ACCOMPLISHED REPAIR AT VERTICAL PRESSURE WEB BETWEEN LBL 45.64 ANDLBL 40.00 AS PERR EF B737 SRM 57-10-10-2F-3 ALTERNTITVE 2 INSP REQUIRED 56,00 FLIGHT CYCLES AFTER REPAIR INSTALLATION WITH 36,000 FLIGHT CYCLES INTERVALS FOR HFEC AND LFEC AS PER TALBE 205 WORK ACCOMPLISHED BY V913189 PLACED REPETITIVE HFEC/LFEC INSPECTION ON DIP FOR 36000 CYCLES AND TERMINATING INSPECTION FOR 56000 CYCLES PER TABLE 205, ALTERNATIVE 2. PLACED REPETITIVE HFEC/LFEC INSPECTION ON DIP FOR 36000 CYCLES TOMC-APPROVAL FROM SC1ELBYC COMMENT AFTER AT A THRESHOLD INSPECTION FOR 56000 CYCLES PER TABLE 205, ALTERNATIVE 2. TABLE 204 IN REFERENCE WITH SRM 57-10-10-2R-3 ACCOMPLISHED REPAIR AT VERTICAL PRESSURE WEB BETWEEN LBL 45.64 Q/C REVIEWED. ANDLBL 40.00 AS PERR EF B737 SRM 57-10-10-2F-3 ALTERNTITVE 2 INSP REQUIRED 56000 FLIGHT CYCLES AFTER REPAIR INSTALLATION WITH 36,000 FLIGHT CYCLES INTERVALS FOR HFEC AND LFEC AS PER TALBE 205 WORK ACCOMPLISHED BY V913189 Q/C REVIEWED. INSPECTIONS CREATED BY AUTODIP PENDING AIRCRAFT RECORDS AUDIT & UPDATE.

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