SDR SWAA2020102320898

Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date: September 23, 2020
Submitted: October 23, 2020
Operation: Air carrier
Aircraft: N431WN
Make and model: Boeing 7377H4
Aircraft serial: 29845
Aircraft time: 61,876 hours, 36,311 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Fwd Galley
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 INTERCOSTAL FLOOR STRUCTURE LOCATED BS 277 TO BS 294.5 AT LEVEL BL 0 FWD GALLEY AND LAV. REPLACED WEB INTERCOSTAL FLOOR STRUCTURE LOCATED BS 277 TO BS 294.5 AT LEVEL BLO FWD GALLEY AND LAV, IAW B737-700 SRM 51-40-02 AND DWG 141A5400 SHEET 20 REV.

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