Service difficulty report · Support · Boeing 7377CT

Difficulty date
June 3, 2021
Submitted
July 12, 2021
Operation
Air carrier
Aircraft
N7823A
Make and model
Boeing 7377CT
Aircraft serial
32749
Aircraft time
61,112 hours, 30,940 cycles
Part
Support
Condition
Corroded
Location
Bs 727d-787
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 FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727D - BS787 WL156. ; LBL 21 / [01] EVALUATED CORROSION FROM 727D-787 DEEPEST MEASUREMENT WAS AT BS 767 FOUND 0.020 REMOVED FROM ORIG 0.040 FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER P/N 4566A S/N UNKOWN; [02] VERIFIED CORROSION FROM 727D-787 DEEPEST MEASUREMENT WAS AT BS 767 FOUND 0.020 REMOVED FROM ORIG 0.040 FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING MICROMETER P/N 4566A S/N UNKOWN; [03] REMOVED ACB FLOOR TO SIDEWALL SUPPORT AT BS727 - BS787 PER SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED ACB LH FLOOR TO SIDEWALL SUPPORT BS 724-847 PER SRM 51-40-05; DWG #146A7500.; [05] VERIFIED LOCATED AND DRILLED ACB LH FLOOR TO SIDEWALL SUPPORT BS 724-847 PER SRM 51-40-05; DWG #146A7500.; [06] OK TO INSTALL FLOOR TO SIDE WALL SUPPORT; [07] CERTIFIED OK TO INSTALL; [08] OK TO INSTALL GIVEN.; [09] INSTALLED NEW FLOOR TO SIDE WALL SUPPORT AT BS727-787 LBL21 WL156 IAW SRM 51-40-02-0G-0 AND DWG 146A7500;1498102 AND 146A7502.; [10] INSTALLATION OF FLOOR TO SIDE WALL SUPPORT ANGLE IS BS727-847 LBL21 WL156.; [11] VERIFIED INSTALLATION OF L/H FLOOR TO SIDEWALL SUPPORT B 727-847 PER DWG 146A7500; 149A8102; 146A7502; AND SRM 51-40-02; [12] VERIFIED WORK IS COMPLETED; [13] COMPLETE

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