Service difficulty report · Support · Boeing 7377L9

Difficulty date
November 18, 2021
Submitted
January 10, 2022
Operation
Air carrier
Aircraft
N7817J
Make and model
Boeing 7377L9
Aircraft serial
28013
Aircraft time
55,382 hours, 27,558 cycles
Part
Support
Condition
Corroded
Location
Bs 500a Rbl 23
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FWD CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT CORRODED RBL23; BS500A+2; +4; +6; +10;+14.5; +18.5; +26.5; +43; +45.5; +47.5; ; / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 500A+6 RBL 23 WL 156. FOUND 0.015 TO BE REMOVED FROM ORIG 0.040 IN 1'X1' AREAS. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ID ATS 2678 S/N UNKNOWN; [02] VERIFIED CORRECTIVE ACTION 1.<BR><BR>OUT OF LIMITS.; [03] FABRICATED NEW FCB RH FLOOR TO SIDEWALL SUPPORT; BS 500A-500D; RBL23. LOCATED AND DRILLED; AND APPLIED CHEMICAL CONVERSION COATING IAW SRM 51-40-05-0G-0; SRM 51-20-01-0G-0; DWG 143A7500. MATERIAL; BAC1496-444; #7075T62; LOT# 1457271-1. AND OK TO PRIME.; [04] VERIFIED CORRECTIV

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