Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
November 21, 2023
Submitted
December 15, 2023
Operation
Air carrier
Aircraft
N8675A
Make and model
Boeing 7378H4
Aircraft serial
35976
Aircraft time
26,896 hours, 13,003 cycles
Part
Floor Support
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

FLOOR SUPPORT CORRODED STA 950 RBL -51 AFT SIDE AROUNG GALLEY FITTING<[01] REMOVED CORROSION PER SRM 53-70-51-1A-1 (0.188' REMAINING THICKNESS). FLOOR SUPPORT (INTERCOSTAL) IS OUT OF LIMITS PER <BR>SRM 53-70-51-1A-1.;[02] REMOVED FLOOR SUPPORT (INTERCOSTAL) PER SRM 51-40-02.;[03] DRILLED NEW FLOOR SUPPORT ( INTERCOSTAL) AND INSTALLED NUTPLATES IAW SRM 51-40-05. AND SRM 51-40-10.;[04] NUTPLATES BONDED PER SRM 51-40-10. DATE APLLIED. NOV. 27 TIME:3:30 A.M;[05] LOCATE AND DRILLED T CHORD PER SRM 53-70-51-2R-5;[06] REMOVED AND REPLACED FLOOR SUPPORT FROM STA 947 - STA 967 I.A.W SRM 51-40-02.;[07] INSP THE REMOVAL AND REPLACEMENT OF FLOOR SUPPORT FROM STA 947 - STA 967 I.A.W SRM 51-40-02.;[08] SEE INDIVIDUAL STEPS FOR WORK PERFORMED. INSP THE REMOVAL AND REPLACEMENT OF FLOOR SUPPORT FROM STA 947 - STA 967 I.A.W SRM 51-40-02.

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