Service difficulty report · Support · Boeing 7377H4

Difficulty date
December 21, 2022
Submitted
January 23, 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 500a-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 L/H FLOOR TO SIDEWALL SUPPORT, BS500A+4, +10, 500B+2, +6, +10, +14, 500C+1, +14, +18, LBL 25, WL 156. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. FABRICATED, LOCATED, & DRILLED A NEW FLOOR TO SIDEWALL SUPPORT AND SPLICE IAW SRM 51-40-05-0G-0, DWG 143A7501, REV A, 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 SPLICE IAW SRM 53-00-53-2R-6 & NUT PLATES IAW SRM 51-40-10-2R-0.

More about the Boeing 737-7H4