Service difficulty report · Support · Boeing 7377H4

Difficulty date
November 16, 2022
Submitted
December 13, 2022
Operation
Air carrier
Aircraft
N267WN
Make and model
Boeing 7377H4
Aircraft serial
32525
Aircraft time
52,811 hours, 31,569 cycles
Part
Support
Condition
Corroded
Location
Bs 420-500c
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 FWD CARGO BAY LT FLOOR TO SIDEWALL SUPPORT, BS 420+13 - 500C +17, RBL 24, WL 156. BLENDED CORROSION AND FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. FABRICATED, LOCATED, AND DRILLED A NEW SIDEWALL SUPPORT AND SPLICE,BS 396 - 500D IAW SRM 51-40-05-0G-0, AND DWG 143A7501; ID:0112, REV A, AND SRM 53-00-53-2R-6. APPLIED CHEMICAL CONVERSION IAW AMM 51-21-41-370-802. APPLIED PRIMER IAW AMM 51-21-72-370-804, INSTALLED THE SPLICE IAW SRM 53-00-53-2R-6, AND INSTALLED ADHESIVELY BONDED NUTPLATES IAW SRM 51-40-10-2R-0. INSTALLED A NEW FLOOR TO SIDEWALL SUPPORT IAW SRM CH 51-40-02 AND DRAWING 143A7500.

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