SDR SWAA2025100611311

Service difficulty report · Web · Boeing 7378H4

Difficulty date: September 4, 2025
Submitted: October 6, 2025
Operation: Air carrier
Aircraft: N8618N
Make and model: Boeing 7378H4
Aircraft serial: 36915
Aircraft time: 39,747 hours, 19,114 cycles
System (JASC): 5420 · Nacelle/Pylon Miscellaneous Structure
Part: Web
Condition: Cracked
Location: Zone 400
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 WEB ON OUTBOART FAN COWL ENGINE 2. REPLACED WEB LOCATED ON OUTBOARD FAN COWL OF ENGINE 2 IAW CMM 71-13-30, PAGE 10088, FIGURE 3, SHEET 1, DETAIL P, TABLE OF PAGE 10105, AND SRM 51-40-02-0G-0. MEASUREMENTS OF CRACK IS: 1.025 INCH.

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