Service difficulty report · Support · Boeing 7377Q8

Difficulty date
May 12, 2022
Submitted
June 16, 2022
Operation
Air carrier
Aircraft
N7876A
Make and model
Boeing 7377Q8
Aircraft serial
29355
Aircraft time
50,771 hours, 27,451 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo
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 FWD CARGO BAY BS500A+2 LBL23. / [01] REMOVED CORROSION ON FWD CARGO TO SIDEWALL SUPPORT AT BS. 500A+2 AREA FOUND TO BE OUT LIMITS L=1.500' W=0.600' D=0.016 ORIGINAL THICKNESS 0.040' REMAINING MAT 0.024' MAT LOSS 0.016 IAW SRM 53-00-53-1A-2 FIG 103 DETAIL D USED TOOL ID ATS1672 DUE 03/2023;[02] VERIFIED CORRECTIVE ACTION 1;[03] FABRICATED ON FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 500A TO BS 400LBL 23 FROM BAC1496-444#7075T62 LOT#1485395-1 IAW SRM 51-40-05 AND DWG 143A7500 AND FABRICATED SPLICE SIDEPLATE ON BS 480 TO 500 FROM BAC1496-444#7075T62 LOT#1485395-1 IAW SRM 53-00-53-2R-6 REPAIR 6 OK TREAT AND PRIME;[04] FABRICATED FWD CARGO BAY LH FLOOR TO SIDEWALL SUPPORT ANGLE BS 400- BS 500D LBL 23 AND SPLICE ANGLE AT BS 480 MADE FROM BAC1496-444#7075T62 LOT#1485395-1 IAW SRM 51-40-02-0G-0; SRM 53-00-53-2R-6 REPAIR 6 AND DWG 143A7500 OK TO TREAT AND PRIM;[17] VERIFIED TASK CARD COMPLETE.;[18] CHANGED REPAIR TYPE TO MINOR.

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