Service difficulty report · Support · Boeing 7377H4

Difficulty date
September 7, 2020
Submitted
August 13, 2021
Operation
Air carrier
Aircraft
N744SW
Make and model
Boeing 7377H4
Aircraft serial
29490
Aircraft time
73,684 hours, 44,016 cycles
Part
Support
Condition
Corroded
Location
Bs 727-847
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

***CORROSION*** IN AFT CARGO BAY ON FLOOR TO SIDEWALL SUPPORT AT B.S. 727-847; L.B.L. 21; W.L. 154. / REMOVED AND REPLACED FLOOR SIDEWALL SUPPORT AT ACB BS727-847 LBL27 WL154 AS PER SRM 51-40-02-0G-0 AND DRAWING #146A7502. EVALUATED FLOOR SIDEWALL SUPPORT AND AND FOUND TO BE OUT OF LIMITS DUE TO MORE THAN 50% OF MATERIAL LOSS AS PER SRM 53-60-53-0I-2 AND SRM 53-00-53-1A-2. DRAWING #146A7500

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