Service difficulty report · Sidewall Support · Boeing 7378H4

Difficulty date
April 15, 2026
Submitted
May 12, 2026
Operation
Air carrier
Aircraft
N8639B
Make and model
Boeing 7378H4
Aircraft serial
60086
Aircraft time
39,504 hours, 19,287 cycles
Part
Sidewall Support
Condition
Corroded
Location
Zone 100
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

CORROSION ON R/H FLOOR TO SIDEWALL SUPPORT AT: STA 727D+5; 727D+6. M727G+6; 727H+9; AND 727I TO 767; RBL 22; WL 156. REMOVED AND REPLACED NEW A.C.B. FLOOR TO SIDEWALL SUPPORT P/N 146A7502-52 LOT# 1583396-1 AT BS727 - BS767 RBL22 WL156 PER SRM 51-40-02 AND DWG 146A7500 REV:-.

More about the Boeing 737-8H4