Service difficulty report · Support · Boeing 7377L9

Difficulty date
November 19, 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 727-727c
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

CORROSION ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727+8; BS727+12; BS727B+10; BS727B+14; BS727C+14 LBL21. MARKED ; / [01] EVALUATED CORROSION AT ALL LOCATIONS; FOUND DEEPEST LOCATION TO BE AT BS 727C+7' REMOVED 0.020' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.040' FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING ATS TOOL ID ATS1225 S/N UNKNOWN; [02] VERIFIED DAMAGE OUT OF LIMITS PER SRM 53-00-53-1A-2; [03] LOCATED AND DRILLED ACB FLOOR TO SIDEWALL SUPPORT AT BS727 - BS847; LBL21; WL156 PER SRM 51-40-05-0G-0 AND DWG 146A7500; [04] ASSIGNED PARTS; [05] VERIFIED LOCATED AND DRILLED ACB FLOOR TO SIDEWALL SUPPORT AT BS727 - BS847; LBL21; WL156 PER SRM 51-40-05-0G-0 AND DWG 146A7500

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