Service difficulty report · Sidewall Support · Boeing 7378H4

Difficulty date
August 24, 2026
Submitted
September 29, 2026
Operation
Air carrier
Aircraft
N8643A
Make and model
Boeing 7378H4
Aircraft serial
42524
Aircraft time
39,924 hours, 19,432 cycles
Part
Sidewall Support
Condition
Corroded
Location
Zn 100 Fus Lower
Stage of operation
IN
How discovered
V
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- CORROSION WAS FOUND ON THE FLOOR TO SIDEWALL SUPPORT BETWEEN STA 727C+10 AND 727G+10, RBL 22 AND WL156. REMOVED AND REPLACED FLOOR TO SIDEWALL SUPPORT SECTION BETWEEN BS727C+10 AND BS767 RBL22 WL156 IAW SRM 53-00-53-2R-6 AND DWG 146A7500 REV. B.

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