Service difficulty report · Floor Support · Boeing 7377H4

Difficulty date
September 4, 2022
Submitted
September 30, 2022
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
56,646 hours, 33,713 cycles
Part
Floor Support
Condition
Corroded
Location
Bs 947-1006
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

CORROSION FLOOR STRUCTURE INNER CHORD LOCATED BS947.5 TO BS1006 RBL55 WL208.1 AFT GALLEY AND LAV 2022-486070. REPLACED INNER CHORD LOCATED BS887 TO BS1006 RBL55 WL208.1 AFT GALLEY AND LAV. IAW B737-700 SRM 51-10-02 AND 51-40-02 AND DWG 147A8501 SHEET 93 REV A. AND DWG 147A0000 SHET 37 REV -. STEP 1 VERIFIED AND CORRECTIVE ACTION COMPLETED : ITEM RII REPLACED INNER CHORD LOCATED BS887 TO BS1006 RBL55 WL208.1 AFT GALLEY AND LAV. IAW B737-700 SRM 51-10-02 AND 51-40-02 AND DWG 147A8501 SHEET 93 REV A. AND DWG 147A0000 SHET 37 REV -. STEP 2 VERIFIED AND CORRECTIVE ACTION COMPLETED : ITEM RII REPLACED INNER CHORD LOCATED BS887 TO BS1006 RBL55 WL208.1 AFT GALLEY AND LAV. IAW B737-700 SRM 51-10-02 AND 51-40-02 AND DWG 147A8501 SHEET 93 REV A. AND DWG 147A0000 SHET 37 REV -.

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