SDR SWAA2026052794064

Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date: April 29, 2026
Submitted: May 28, 2026
Operation: Air carrier
Aircraft: N8645A
Make and model: Boeing 7378H4
Aircraft serial: 36907
Aircraft time: 39,238 hours, 19,096 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Zone 200
Stage of operation: IN
How discovered: 9
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 ON SUPPORT ANGLE LOCATED BTW BS 380 TO BS 400 RBL 41 WL 208.1 AT PASSENGER CABIN . REPLACED SUPPORT ANGLE AND FASTENERS LOCATED BETWEEN BS 380 TO BS 400 RBL 41 AND WL 208.1 AT FLOOR STRUCTURE OF PASSENGER CABIN AREA IAW SRM 51-40-02-0G-0; DRAWING NUMBER: 143A5400 SHEET: 184; REV-, AND SHEET 139, REV -.

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