Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
April 25, 2022
Submitted
May 31, 2022
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
60,134 hours, 35,574 cycles
Part
Support Angle
Part number
115A37589
Condition
Cracked
Location
Lh 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

CRACK SUPPORT ANGLE LOWER SURFACE REAR SPAR LOCATED AT LEVEL ORSS 281 AND ORSS 329 LT WING 2022-207190 / [01] REPLACED SUPPORT ANGLE ( BEAM ASSY ) P/N : 115A3758-9 PO: 2022 143854 LOC. LOWER SURFACE REAR SPAR AT LEVEL ORSS 281 AND ORSS 329 LT WING IAW B737-700 SRM 51-10-02 ; 51-40-02 AND DWG # 115A3700 REV :- DUE TO NOT FOUND ALLOWABLE DAMAGE ON SRM AND CRACK MEASURE IS: 0.700? TOOL USED; DIGITAL CALIPER P/N: 500-197-30 S/N:A21143429 DUE DATE: 11-OCT-22;[02] REPLACED SUPPORT ANGLE ( BEAM ASSY ) P/N : 115A3758-9 PO: 2022 143854 LOC. LOWER SURFACE REAR SPAR AT LEVEL ORSS 281 AND ORSS 329 LT WING IAW B737-700 SRM 51-10-02 ; 51-40-02 AND DWG # 115A3700 REV.

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