SDR SWAA2026050587386

Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date: April 7, 2026
Submitted: May 5, 2026
Operation: Air carrier
Aircraft: N928WN
Make and model: Boeing 7377H4
Aircraft serial: 36890
Aircraft time: 57,454 hours, 35,281 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Zone 200
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

FLOOR SUPPORT IS CRACKED AT BS 320, LBL 44, WL 208. R & R THE FLOOR SUPPORT BS 312 - 328, LBL 44, WL 208 IAW SRM 51-40-02-0G-0, AND DWG 141A5400, REV -. NO LIMITS GIVEN ON SRM 53-10-51-1A-1 ALLOWABLE DAMAGE 1, PAR 4.B FOR SPECIFIC CRACK LOCATION, SRM 51-10-02-0G-0 PAR.9.C IS APPLICABLE.

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