Service difficulty report · Floor Panel · Boeing 73776N

Difficulty date
February 7, 2018
Submitted
February 10, 2022
Operation
Air carrier
Aircraft
N7727A
Make and model
Boeing 73776N
Aircraft serial
32673
Aircraft time
39,068 hours, 18,585 cycles
Part
Floor Panel
Condition
Corroded
Location
Aft Cargo Bay
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*** ACB; FLOOR PANEL 140CF; CORRODED. / AFT CARGO BAY FLOOR PANEL 140CF CORROSION FOUND OUT OF LIMITS DUE TO EXCEEDING 3.0' IN LENGTH PER SRM 53-00-53-1A-1; FABRICATED FLOOR FROM .071 2024 T3 LOT # 1322082-2; LOCATED & DRILLED AND COUNTERSUNK HOLES & APPLIED CHEMICAL CONVERSION COATING OER SRM 51-40-05-0G-0; SRM 51-40-08-0G-0; MM 51-21-41-370-801; DWG 453A2610 AND APPLIED PRIMER PER MM 51-21-72-370-804 & DWG 453A2610.

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