Service difficulty report · Floor Panel · Boeing 73779P

Difficulty date
February 1, 2020
Submitted
August 17, 2021
Operation
Air carrier
Aircraft
N7857B
Make and model
Boeing 73779P
Aircraft serial
29358
Aircraft time
45,651 hours, 31,158 cycles
Part
Floor Panel
Condition
Corroded
Location
Aft 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

AFT CARGO COMPARTMENT FLOOR PANEL 140CF IS CORRODED ALONG EDGES ON TOP. / REMOVED CORROSION @ AFT CARGO PIT FLOOR PANEL #140 CF IAW SRM 53-00-53-1A-1 FIG 102 PG 4 CHECKED WITH 10X MAG VERIFIED MATERIAL LOSS AS ORIGINAL 'T' =.071 LOSS=.028 REMAINING=.043 AREA OUT OF LIMITS IAW SRM 53-00-53-1A-1 FIG 102 PG 4. VERIFIED NEW PANEL #140 CF AS P/N 453A2610-18 A-TAG WN 6822 IAW BOEING DWG 453A2610 REV: C PLACED NEW PANEL #140 CF ON AFT CARGO PANEL RACK

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