Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
August 5, 2021
Submitted
September 10, 2021
Operation
Air carrier
Aircraft
N754SW
Make and model
Boeing 7377H4
Aircraft serial
29849
Aircraft time
74,935 hours, 44,224 cycles
Part
Support Angle
Condition
Cracked
Location
Bs 540
Stage of operation
IN
How discovered
V
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 LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN ; 2021-368610 / [01] REPLACED SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-10-02 STEP 9 ; SRM 51-40-02 AND DWG 143A5240 SHEET 1 REV -; [02] REPLACED SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-10-02 STEP 9 ; SRM 51-40-02 AND DWG 143A5240 SHEET 1 REV - (UPDATED CORRECTIVE ACTION TO ADD PART INSTALLED); [03] CORRECTED STEP 1 AND 2 REMOVED SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-40-02 AND PERFORMED VISUAL INSPECTION AND NOT FOUND MORE DAMAGE; [04] DRILLED NEW SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-40-05 AND APPLIED PROTECTIVE TREATMENT ON HOLES IAW B737-700 SRM 51-20-01; [05] OK TO INSTALL NEW SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN AND FASTENERS; [06] INSTALLED NEW SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-40-02 AND DWG 143A5240 SHEET 1 REV -; [07] REPLACED SUPPORT ANGLE LOCATED ON BS540 AND BL0 TO LBL24.5 AT PASSENGER CABIN IAW B737-700 SRM 51-10-02 STEP 9; SRM 51-40-02 AND DWG 143A5240 SHEET 1 REV -; [08] STEP 3 VERIFIED AND NO FOUND MORE DAMAGE; [09] STEP 4; 5; 6 AND 7 VERIFIED; RII ACCOMPLISHED AND TASK COMPLETED

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