Service difficulty report · Web · Boeing 7377H4

Difficulty date
May 23, 2025
Submitted
June 16, 2025
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
51,407 hours, 31,575 cycles
Part
Web
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 WEB LOWER SILL LOCATED BTW BS 440 TO BS 492.4 RBL 25 WL 156.1 AT FWD CARGO COMPARTMENT 2025-340248<[01] THE MINIMUM REMAINING THICKNESS OM REWORKED AREA TOOL USED: ULTRASONIC THICKNESS GAUGE; PN: 45MG; SN:130066401; DUE DATE: 21-OCT-25;[02] REPLACED WEB LOWER SILL LOCATED BTW BS 440 TO BS 492.4 RBL 25 WL 156.1 AT FWD CARGO COMPARTMENT I.A.W. B737-700 SRM 51-10-02 ITEM 9 SRM 51-40-02 DWG 143A8330 SHEET 42 REV. A <BR><BR>SEE INDIVIDUAL SIGN OFF BELOW;[03] TASK COMPLETED; RII <BR>SEE INDIVIDUAL SIGN OFF BELOW

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