Service difficulty report · Support Bracket · Boeing 737

Difficulty date
September 15, 2021
Submitted
April 28, 2022
Operation
Air carrier
Aircraft
N448WN
Make and model
Boeing 737
Aircraft serial
33721
Aircraft time
58,879 hours, 34,833 cycles
Part
Support Bracket
Condition
Cracked
Location
L/H Wing
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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