Service difficulty report · Angle · 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
Angle
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 ANGLE TRAILING EDGE LOCATED ON ORSS 274 APROX. DEFLECTION CONTROL RIB AT LT WING ; 2021-429642 / [01] REMOVED ANGLE TRAILING EDGE 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 SRM B737-700 AND PERFORMED VISUAL INSPECTION ON ADJACENT AREA AND NOT FOUND ADDITIONAL DAMAGE; [02] PERFORMED DRILL ON NEW ANGLE IAW B737-700 SRM 51-40-05 AND APPLIED PROTECTIVE TREATMENT IAW B737-700 SRM 51-20-01 ON HOLES OF NEW ANGLE; [03] OK TO INSTALL NEW ANGLE AND FASTENERS; [04] CERTIFIED STEP 1; 2 AND 3; NO DISCREPANCIES FOUND AND GRANTED OK TO INSTALL; [05] INSTALLED NEW ANGLE LOCATED TRAILING EDGE ON ORSS 274 APROX IAW SRM 51-40-02 AND DRAWING 115A2930; [06] REPLACED ANGLE LOCATED TRAILING EDGE ON ORSS 274 APROX IAW SRM 51-10-02 ITEM 9 AND DWG 115A2930; [07] STEP 5 COMPLETED; [08] TASK COMPLETED