Service difficulty report · Strap · Boeing 7377H4

Difficulty date
May 21, 2021
Submitted
June 28, 2021
Operation
Air carrier
Aircraft
N207WN
Make and model
Boeing 7377H4
Aircraft serial
34012
Aircraft time
52,378 hours, 31,227 cycles
Part
Strap
Condition
Corroded
Location
Bs 767-847
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

AFT CARGO BAY THRESHOLD STRAP HAS CORROSION BS767+7- BS847+14 ; / [01] VERIFIED APPLICABILITY ON SRM 53-60-15-OI-1 FOR IDENTIFICATION AND SRM 53-60-15-1A-1 FOR ALLOWABLE DAMAGE; [02] REMOVED DAMAGE AT ACB THRESHOLD STRAP BS767+7-BS847+14 RBL20; WL 157; MAXIMUM BLENDED AREA EXCEEDS 50% OF ORIGINAL THICKNESS; FOUND TO BE OUT OF LIMIT IAW SRM 53-60-15-1A-1; PAR. 4.G.(3)(B); FIG. 103 DETAIL. B; [03] VERIFIED APPLICABILITY ON SRM 53-60-15-OI-1 FOR IDENTIFICATION AND SRM 53-60-15-1A-1 FOR ALLOWABLE DAMAGE.<BR>VERIFIED REMOVED DAMAGE AT ACB THRESHOLD STRAP BS767+7-BS847+14 RBL20; WL 157; MAXIMUM BLENDED AREA EXCEEDS 50% OF ORIGINAL THICKNESS; FOUND TO BE OUT OF LIMIT IAW SRM 53-60-15-1A-1; PAR. 4.G.(3)(B); FIG. 103 DETAIL. B.; [04] REMOVED ACB THRESHOLD STRAP BS794-BS847 RBL20;WL157; IAW SRM 51-40-02-OG-0; [05] LOCATE AND DRILLED STRAP WITH P/N 146A8128-14;ITEM 7530562; LOT.1446412-1; AT AFT. CARGO BAY BTW B.S.767+7; TO B.S.847+14; RBL.20;WL.157; PER SRM. 51-40-05-0G-0;DWG#146A0081;146A8120;146A8340. OK TO INSTALL.; [06] VERIFIED DRILL UP AND OK TO INSTALL.; [07] INSTALLED AT CARGO BAY THRESHOLD STRAP BTW B.S. 767+7 TO B.S.847+14;RBL.20;WL.157 PER SRM.51-40-02; DWG#146A0081;146A8120;146A8340; [08] VERIFIED INSTALLED AT CARGO BAY THRESHOLD STRAP BTW B.S. 767+7 TO B.S.847+14;RBL.20;WL.157 PER SRM.51-40-02; DWG#146A0081;146A8120;146A8340.; [09] VERIFIED INSTALLED AT CARGO BAY THRESHOLD STRAP BTW B.S. 767+7 TO B.S.847+14;RBL.20;WL.157 PER SRM.51-40-02; DWG#146A0081;146A8120;146A8340.

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