Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
April 16, 2020
Submitted
May 26, 2020
Operation
Air carrier
Aircraft
N922WN
Make and model
Boeing 7377H4
Aircraft serial
32461
Aircraft time
41,140 hours, 24,679 cycles
Part
Floorbeam
Part number
147A550611
Condition
Corroded
Location
Fuselage
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

PASSENGER CABIN FLOOR AFT GALLEY DOOR WAY STA 987 FLOORBEAM CORRODED AROUND FASTENER HOLE WL 208 RBL 0 - 45. REMOVED CORROSION FROM CABIN FLOOR AFT GALLEY DOORWAY STA 987 FLOORBEAM WL 208 AROUND FASTENER HOLE IAW SRM 51-10-02-0G-0 AND INSPECTED W/ 10X MAG GLASS. NO DEFECTS NOTED. VERIFIED MATERIAL LOSS: ORIGINAL T = .080' REMAINING T = .000 LOSS = .080' LIMIT = .008'. FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51A-1A-1 FIG 103 DET C. TRIMMED OUT DAMAGED AREA AND PERFORMED FLOORBEAM UPPER CHORD T CAP REPAIR IAW SRM 53-70-51-2R-4. APPLIED CIC TO NEW FLAP AND DISTURBED AREAS IAW AMM 51-21-91-620-802 PN 147A5506-11.

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