Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 cycles
Part
Support Angle
Condition
Corroded
Location
Bs 500d
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

CORROSION ON SIDEWALL SUPPORT ANGLE AT FWD CARGO BAY BS500D LBL25 WL156. ; / [01] EVALUATED CORROSION ON BULKHEAD SUPPORT; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] CORROSION ON BULKHEAD SUPPORT; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [03] REMOVED FCB SIDEWALL SUPPORT ANGLE AT BS500D LBL25-61 DUE TO CORROSION BEING OUT OF LIMITS IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW BKD TO SIDEWALL SUPPORT ANGLE BS 500D LBL25-61 IAW SRM 51-40-05-0G-0 AND DWG 143A9481; [05] VERIFIED LOCATED AND DRILLED NEW BKD TO SIDEWALL SUPPORT ANGLE BS 500D LBL25-61 IAW SRM 51-40-05-0G-0 AND DWG 143A9481.; [06] OK TO INSTALL SIDEWALL SUPPORT ANGLE; [07] CERTIFIED STEP 6; [08] OK TO INSTALL GIVEN.; [09] INSTALLED FCB BULKHEAD ANGLE AT BS500D; LBL25; WL156 PER SRM 51-40-02-0G-0 AND DWG 143A7902; DWG 143A9481; [10] UPDATED PART INSTALLED TAB.; [11] VERIFIED INSTALLATION OF FCB BULKHEAD ANGLE AT BS500D; LBL25; WL156 PER SRM 51-40-02-0G-0 AND DWG 143A7902; DWG 143A9481; [12] VERIFIED COMPLETE

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