# SDR SWAA2021102518073

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 15, 2021
- Submitted: April 28, 2022
- Operation: Air carrier
- Aircraft: [N448WN](https://openairdocs.org/aircraft/N448WN), registered now
- Make and model: Boeing 737
- Aircraft serial: 33721
- Aircraft time: 58,879 hours, 34,833 cycles
- System (JASC): [5720 · Wing Miscellaneous Structure](https://openairdocs.org/jasc/5720)
- Part: Support Bracket
- Condition: Cracked
- Location: L/H Wing
- 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/SWAA2021102518073

## Discrepancy

SUPPLEMENTAL INFORMATION: CRACK SUPPORT BRACKET LOCATED ON ORSS 274 APROX.DEFLECTION CONTROL RIB AT LT WING ; 2021-429644 / [01] REMOVED SUPPORT BRACKET LOCATED ON ORSS 274 APROX.DEFLECTION CONTROL RIB AT LT WING IAW B737-700 SRM 51-40-02 DUE TO NOT FOUND ALLOWABLE DAMAGE ON B737-700 SRM AND PERFORMED VISUAL INSPECTION ON ADJACENT AREA AND NOT FOUND ADDITIONAL DAMAGE; [02] PERFORMED DRILL ON NEW BRACKET IAW B737-700 SRM 51-40-05 AND APPLIED PROTECTIVE TREATMENT IAW B737-700 SRM 51-20-01 ON HOLES OF NEW BRACKET; [03] OK TO INSTALL NEW BRACKET AND FASTENERS; [04] CERTIFIED STEP 1; 2 AND 3; NO DISCREPANCIES FOUND AND GRANTED OK TO INSTALL; [05] INSTALLED NEW SUPPORT BRACKET LOCATED ON ORSS 274 APROX DEFLECTION CONTROL RIB AT LT WING IAW SMR 51-40-02; [06] REPLACED NEW SUPPORT BRACKET LOCATED ON ORSS 274 APROX DEFLECTION CONTROL RIB AT LT WING IAW SRM 51-10-02 ITEM 9; [07] STEP 5 COMPLETED; [08] TASK COMPLETED

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