Service difficulty report · Floor Panel · Boeing 7378

Difficulty date
September 27, 2024
Submitted
October 21, 2024
Operation
Air carrier
Aircraft
N8731J
Make and model
Boeing 7378
Aircraft serial
42550
Aircraft time
12,247 hours, 5,718 cycles
Part
Floor Panel
Condition
Corroded
Location
Zone 100
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

DOT L7-006: AFT CARGO FLOOR PANEL 140DF HAS CORROSION AT FASTENER HOLES AND ALONG EDGES<[01] UPON FURTHER INVESTIGATION; FOUND THAT CORROSION WAS 25 INCHES IN LENGTH WITH A MAX ALLOWED LENGTH OF 3 INCHES FOUND TO BE OUT OF LIMITS; RECEIVED REPLACEMENT MATERIAL PN 2024-T3-071 A TAG A255451 AND VERIFIED TO BE CORRECT REPLACEMENT MATERIAL; FABRICATED PANEL 140DF; TREATED AND PRIMED PANEL 140DF;[02] UPON FURTHER INVESTIGATION; FOUND THAT CORROSION WAS 25 INCHES IN LENGTH WITH A MAX ALLOWED LENGTH OF 3 INCHES FOUND TO BE OUT OF LIMITS; RECEIVED REPLACEMENT MATERIAL PN 2024-T3-071 A TAG A255451 AND VERIFIED TO BE CORRECT REPLACEMENT MATERIAL; FABRICATED PANEL 140DF; TREATED AND PRIMED PANEL 140DF IAW SRM 53-00-53-1A-1;[03] UPON FURTHER INVESTIGATION; FOUND THAT CORROSION WAS 25 INCHES IN LENGTH WITH A MAX ALLOWED LENGTH OF 3 INCHES FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-1; RECEIVED REPLACEMENT MATERIAL PN 2024-T3-071 A TAG A255451 AND VERIFIED TO BE CORRECT REPLACEMENT MATERIAL IAW SRM 53-30-53-0I-1; FABRICATED PANEL 140DF IAW 50-10-04-400-801; TREATED AND PRIMED PANEL 140DF IAW AMM 51-21-41-370-801; AMM 51-21-72-370-801;[04] AUDIT C/W

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