Service difficulty report · Rib · Boeing 7377H4

Difficulty date
February 20, 2025
Submitted
March 12, 2025
Operation
Air carrier
Aircraft
N936WN
Make and model
Boeing 7377H4
Aircraft serial
36643
Aircraft time
51,176 hours, 31,176 cycles
Part
Rib
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 RIB 8 ON ACCESS PANEL 321A DORSAL FIN VERTICAL STABILIZER 2025-151899 <[01]. REMOVED AND REPLACED RIB 8 AND FASTENERS LOCATED ON ACCESS PANEL 321A DORSAL FIN VERTICAL STABILIZER. IAW B737-700 SRM 51-10-02 PARAGRAPH 9. SRM 51-40-02 AND DWG# 174A1008. SHEET 2. REV. ?C?. SEE INDIVIDUAL SIGN OFF BELOW.; [02] REMOVED AND REPLACED RIB 8 AND FASTENERS LOCATED ON ACCESS PANEL 321A DORSAL FIN VERTICAL STABILIZER. IAW B737-700 SRM 51-10-02 PARAGRAPH 9. SRM 51-40-02 AND DWG# 174A1008. SHEET 2. REV. ?C?. SEE INDIVIDUAL SIGN OFF BELOW.

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