SDR SWAA2021122748010

Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date: November 27, 2021
Submitted: December 27, 2021
Operation: Air carrier
Aircraft: N455WN
Make and model: Boeing 7377H4
Aircraft serial: 32462
Aircraft time: 58,698 hours, 34,771 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Condition: Cracked
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

CRACKED INTERCOSTAL, BS 312 - 328, LBL 45, WL 208. FOUND OUT LIMITS DUE TO CRACK EXCEEDS THE ALLOWED DIMENSIONS IAW SRM 53-10-51-1A 1 ALLOWABLE DAMAGE 1 FIGURE 105. REMOVED DAMAGED INTERCOSTAL IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED A NEW INTERCOSTAL IAW SRM 51-40-05 AND DWG 141A5400. INSTALLED THE NEW INTERCOSTAL IAW SRM 51-40-02 AND DWG 141A5400 REV-.

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