Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
July 25, 2024
Submitted
August 16, 2024
Operation
Air carrier
Aircraft
N8699A
Make and model
Boeing 7378H4
Aircraft serial
36923
Aircraft time
26,610 hours, 13,112 cycles
Part
Floor Support
Condition
Corroded
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

CORROSION ON FLOOR SUPPORT STRUCTURE AROUND FITTING BS 947.5; LBL 50<[01] REMOVED DAMAGED ON FLOOR SUPPORT (INTERCOSTAL) AT BS 947.5 LBL 50 WL 208 IN AN AREA OF 1.1' X 1.1'; REMOVED 0.048'; ORIGINAL MATERIAL THICKNESS 0.200'; REMAINING MATERIAL THICKNESS 0.152' FOUND TO BE OUT LIMITS PER SRM 53-70-51-1A-1 ALLOWABLE DAMAGE 1 PAR.4.A(2)(A). PART TO BE REMOVED AND REPLACED PER SRM 51-10-02-0G-0 PAR.9.A(1); TOOL USED ID: ATS2827 DUE: 01/2025. REPLACEMENT OF PART WILL BE ACCOMPLISHED ON CUSTOMER CARD NUMBER TTG8Q00UUSXR STEP 10;[02] VERIFIED CORRECTIVE ACTION COMPLETE.

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