Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
August 19, 2021
Submitted
September 27, 2021
Operation
Air carrier
Aircraft
N208WN
Make and model
Boeing 7377H4
Aircraft serial
29856
Aircraft time
52,294 hours, 30,932 cycles
Part
Sidewall Support
Condition
Corroded
Location
Fuselage
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 FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 410 RBL 25 WL 156. BLENDED CORROSION AND FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2. STEP 4. A (2) FIGURE 103. FWD RH FLOOR TO SIDEWALL SUPPORT WAS REMOVED, FABRICATED AND DRILLED A NEW FLOOR TO SIDEWALL SUPPORT IAW SRM 51-40-05-0G-0 AND DWG 143A7501. APPLIED CHEMICAL CONVERSION COATING AND PRIMER IAW AMM 51-21-72-370-804 & AMM 51-21-41-370-802. INSTALLED FLOOR TO SIDEWALL SUPPORT BS 410; RBL 25; WL 156 IAW SRM 51-40-02-0G-0 AND DWG 143A7500.

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