SDR SWAA2021110123874

Service difficulty report · Web · Boeing 7377H4

Difficulty date: September 28, 2021
Submitted: November 1, 2021
Operation: Air carrier
Aircraft: N414WN
Make and model: Boeing 7377H4
Aircraft serial: 29820
Aircraft time: 67,826 hours, 39,808 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
Condition: Cracked
Location: Bs 400 - 420
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CRACK WEB LOCATED BTW BS 400 & 420, S26L. REMOVED WEB IAW SRM 51-40-02. ALLOWABLE DAMAGE LIMITS FOR CRACK ON WEB INTERCOSTAL NOT FOUND IN SRM. DRILLED NEW HOLES ON WEB IAW SRM 51-40-05. INSTALLED NEW WEB IAW SRM 51-40-02, AND DWG 143A7505, SHEET 2, REV B.

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