SDR SWAA2022111557715

Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date: October 8, 2022
Submitted: November 15, 2022
Operation: Air carrier
Aircraft: N203WN
Make and model: Boeing 7377H4
Aircraft serial: 32483
Aircraft time: 59,685 hours, 35,389 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Bs 312-328 Lbl47
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

CABIN FLOOR INTERCOSTAL BS 312-328, LBL 47 CRACKED AT SCREW HOLE. REMOVED INTERCOSTAL IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED A NEW INTERCOSTAL IAW SRM 51-40-05-0G-0. TREATED WITH ALODINE AND PRIMER TO ALL FASTENERS HOLES IN IAW SRM 51-20-01-0G-0, AND 51-21-72-370-804. INSTALLED THE NEW INTERCOSTAL IAW SRM 51-40-02-0G-0, 51-40-05-0G-0, AND DWG 141A5400.

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