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 947
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 AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT AFT CARGO BAY BS947 LBL8 TO RBL19 WL179. ; / [01] REMOVED ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE; BS947 LBL8 TO RBL19; WL179; IAW SRM 51-40-02-0G-0.; [02] EVALUATED CORROSION; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [03] VERIFIED CORROSION DAMAGE FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [04] LOCATED AND DRILLED NEW ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS 947 LBL 8 TO RBL 19 IAW SRM51-40-02-0G-0; SRM 51-40-05-0G-0.; [05] VERIFIED LOCATE AND DRILL OF NEW ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS 947 LBL 8 TO RBL 19 IAW SRM51-40-02-0G-0; SRM 51-40-05-0G-0; [06] OK TO INSTALL AFT BULKHEAD TO FLOOR SUPPORT; [07] VERIFIED OK TO INSTALL AFT BULKHEAD TO FLOOR SUPPORT; [08] INSTALLED ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS947; RBL19; WL179 PER SRM 51-40-02-0G-0 AND DWG 149A8110; DWG 149A8117; [09] ASSIGNED PART TO JOB; [10] VERIFIED THE INSTALLATION OF THE ACB AFT BULKHEAD TO FLOOR SUPPORT ANGLE BS947; RBL19; WL179; [11] VERIFIED TASK IS COMPLETE

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