Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
July 29, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Support Angle
Condition
Cracked
Location
Bs 918 Rbl 12
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

CRACKED SUPPORT ANGLE AT AFT CARGO BAY BEHIND WATER SERVICE PANEL BS918 RBL12 WL171. ; / [01] DAMAGE FOUND ON SUPPORT ANGLE AT AFT CARGO BAY BEHIND WATER SERVICE PANEL BS918 RBL12 WL171; P/N 147A7221-32; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ON SRM PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0; PAR. 9.C.; [02] VERIFIED DAMAGE FOUND ON SUPPORT ANGLE AT AFT CARGO BAY BEHIND WATER SERVICE PANEL BS918 RBL12 WL171; P/N 147A7221-32; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ON SRM PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0; PAR. 9.C.; [03] REMOVED SUPPORT ANGLE PER SRM 51-40-02; [04] LOCATED AND DRILLED NEW SUPPORT ANGLE (STIFFENER) PER SRM 51-40-05 AND DWG 147A7221. OK TO INSTALL.; [05] VERIFIED LOCATED AND DRILLED NEW SUPPORT ANGLE (STIFFENER) PER SRM 51-40-05 AND DWG 147A7221. OK TO INSTALL.; [06] INSTALLED SUPPORT ANGLE (STIFFENER) P/N 147A7221-32; AT AFT CARGO BAY BEHIND WATER SERVICE PANEL BS 918 ;RBL.12;WL.171; IAW SRM 51-40-02-0G-0 DWG#146A7221. ALL MAINTENANCE ACTIONS ARE COMPLETE REQUEST FINAL BUYOFF.; [07] PARTS INSTALLATION.; [08] VERIFIED INSTALLED SUPPORT ANGLE (STIFFENER) P/N 147A7221-32; AT AFT CARGO BAY BEHIND WATER SERVICE PANEL BS 918 ;RBL.12;WL.171; IAW SRM 51-40-02-0G-0 DWG#146A7221; [09] VERIFIED ALL STEPS COMPLETE.

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