Service difficulty report · Web · Boeing 7377H4

Difficulty date
March 9, 2023
Submitted
April 17, 2023
Operation
Air carrier
Aircraft
N220WN
Make and model
Boeing 7377H4
Aircraft serial
32491
Aircraft time
58,003 hours, 34,631 cycles
Part
Web
Condition
Corroded
Location
Zn 100 Fus Lower
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 FOUND AT AFT WET AREA UNDER PANEL 242VF FROM STA 986.5 TO 1006; RBL 24 TO RBL 25; WL 208.1<[01] AFTER INSPECTION OF FLOOR STRUCTURE UNDER PANEL 242VF. FOUND CORROSION AT WEB BETWEEN STA 986.5 AND STA 1006; RBL 38. FOUND OUT OF LIMITS. NO DAMAGE IS PERMITTED AS PER SRM 53-70-51-1A-1. REMOVED AND REPLACED WEB AT CABIN AFT WET AREA BETWEEN STA 986.5 AND STA 1016; RBL 38 AS PER SRM 51-40-02-0G AND DWG 147A5730.;[02] VERIFIED STEP 1.

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