Service difficulty report · Support · Boeing 7377H4

Difficulty date
December 21, 2022
Submitted
January 19, 2023
Operation
Air carrier
Aircraft
N272WN
Make and model
Boeing 7377H4
Aircraft serial
32527
Aircraft time
52,973 hours, 31,748 cycles
Part
Support
Condition
Corroded
Location
Bs 747 Rbl 21
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 ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21, BS 747+2, 747+6, 747+9, 747+10, 747+12, 747+14, & 747+18. BLENDED CORROSION AND FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2. FABRICATED A REPLACMENT FLOOR TO SIDWALL SUPPORT IAW SRM 51-40-05-0G-0, SRM 51-40-08-0G-0, AND DWG 146A7502. APPLIED CHEMICAL CONVERSION IAW AMM 51-21-41-370-802. APPLIED PRIMER IAW AMM 51-21-72-370-804.

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