# SDR CALA2021121002313

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2021
- Submitted: December 10, 2021
- Operation: Air carrier
- Aircraft: [N37293](https://openairdocs.org/aircraft/N37293), registered now
- Make and model: Boeing 737824
- Aircraft serial: 33453
- Aircraft time: 47,435 hours, 16,832 cycles
- System (JASC): [5300 · Fuselage Structure (General)](https://openairdocs.org/jasc/5300)
- Part: Pressure Blkhd
- Part number: 111A11111
- Condition: Cracked
- Location: Lh Mlg Ww
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021121002313

## Discrepancy

LT MLG W/W VERTICAL PRESSURE DECK WEB CRACKED REF AAR N/R 9638162 REPAIRED LT MLG W/W VERTICAL PRESSURE WEB AS PER B737 SRM 57-10-10-2R-2 ALTERNITIVE 2 PREFORMED HFEC AND LFEC RE-INSPECT AT EVARY 36,000 FC WITH A THRESHOLD OF 56,000 FC I.A.W B737 SRM 57-10-10-2R-3 PARAGRAPH 7 TABLE 205 ACCOMPLISEHD BY V984495 ITEM PLACED OF DIP IAW TABLE 205 IN SRM 57-10-10. OKAY TO CARRY FORWARD WITH A CATAGORY B REPAIR ACCOMPLISHED ON TOMC-APPROVAL FROM SC1ELBYC COMMENT THE LT MLG W/W VERTICAL PRESSURE DECK WEB PER SRM 57-10-10-2R-3. THIS CATAGORY B REPAIR IS TO BE INSPECTED WITH HFEC AT 56000 FLIGHT CYCLES (FC) AFTER REPAIR INSTALLATION THEN REINSPECTED WITH HFEC EVERY 36000 FC THEREAFTER. QC RECORDS UPDATE VD QC REVIEWED. INIT: 56000 FC  CRAFT RECORDS AUDIT & (INIT WILL ITO TO RIR -5177) RIR: 36000 FC VD/U353583

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