Service difficulty report · Web · 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
Web
Condition
Corroded
Location
Bs 813
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 WEB AT AFT CARGO BAY BS813 RBL19 WL159. ; / [01] REMOVED CORROSION UNDERNEATH 1IN. BY 1IN. AT B.S.813;RBL19;WL159 PER SRM 53-60-15-1A-1; [02] REMOVED N/P FOR ACCESS PER SRM 53-60-15-1A-1; [03] VERIFIED CORROSION REMOVED; [04] UT INSPECTED BLEND IAW 737 NDTM PART 4 51-00-00 PROCEDURE 2; LOWEST THICKNESS 0.046'<BR><BR>CAL ID ATS2031 E650; [05] BLEND MEASURES 1'X1'X.010. ORIGINAL THICKNESS .056; .046 REMAINING FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-0L-1 AND SRM 53-60-15-1A-1; [06] VERIFIED BLEND MEASUREMENTS OUT OF LIMITS PER SRM 53-60-15-1A-1; [07] REMOVED ACB WEB AT BS795 - BS847 PER SRM 51-40-02-0G-0; [08] LOCATED AND DRILLED ACB VERTICAL WEB AT BS795 - BS847; RBL19; WL159 PER SRM 51-40-05-OG-0 AND DWG 146A8121. OK TO INSTALL; [09] VERIFIED LOCATED AND DRILLED ACB VERTICAL WEB AT BS795 - BS847; RBL19; WL159 PER SRM 51-40-05-OG-0 AND DWG 146A8121. OK TO INSTALL; [10] INSTALLED ACB VERTICAL WEB AT BS795 - BS847; RBL19; WL159 PER SRM 51-40-02-OG-0 AND DWG 146A8121; DWG 146A8120; [11] VERIFIED INSTALLED ACB VERTICAL WEB AT BS795 - BS847; RBL19; WL159 PER SRM 51-40-02-OG-0 AND DWG 146A8121; DWG 146A8120.; [12] VERIFIED INSTALLED ACB VERTICAL WEB AT BS795 - BS847; RBL19; WL159 PER SRM 51-40-02-OG-0 AND DWG 146A8121; DWG 146A8120.

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