Service difficulty report · Support · Boeing 7377H4

Difficulty date
March 13, 2025
Submitted
April 7, 2025
Operation
Air carrier
Aircraft
N939WN
Make and model
Boeing 7377H4
Aircraft serial
36646
Aircraft time
51,518 hours, 31,311 cycles
Part
Support
Condition
Cracked
Location
Zone 300
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

CRACK BLADE SUPPORT STRUCTURE OF THE ACCESS PANEL 333AT AT LT HORIZONTAL STABILIZER 2025-203656<[01] REPLEACED BLADE SUPPORT STRUCTURE OF THE ACCESS PANEL 333AT AT LT HORIZONTAL STABILIZER B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9;[02] CORREDTED STEP 1 REPLEACED BLADE SUPPORT STRUCTURE OF THE ACCESS PANEL 333AT AT LT HORIZONTAL STABILIZER B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9. TOOL USED CALIPER P/N: 500-197-30 S/N: A23272233 DUE DATE: JAN-07-2026;[03] CORREDTED STEP 2 REPLEACED BLADE SUPPORT STRUCTURE OF THE ACCESS PANEL 333AT AT LT HORIZONTAL STABILIZER B737-700 SRM 51-40-02 AND SRM 51-10-02 ITEM 9. TOOL USED CALIPER P/N: 500-197-30 S/N: A23272233 DUE DATE: 07-JAN-26;[04] COMPLETED TASK CERTIFIED

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