Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
March 13, 2024
Submitted
April 17, 2024
Operation
Air carrier
Aircraft
N8568Z
Make and model
Boeing 7378H4
Aircraft serial
64248
Aircraft time
19,712 hours, 9,988 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 948 L24
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

AFT WET AREA FLOOR BEAM STA. 947.5 AT L-24 HAS EVIDENCE OF CORROSION<[01] REMOVED LAV. MOUNT TO F.O.M IAW SRM 51-40-02.;[02] REMOVED LAV. MOUNT TO F.O.M IAW SRM 51-40-02. AFTER REMOVAL OF LAV MOUNT CORROSION CONFIRMED FOUND ON FLOOR BEAM UPPER CAP.;[03] REMOVED CORROSIONS ON FLOR BEAM STA. 947 AT LBL 24; MAT. REMOVED DEPTH IS 0.041; REMAINING THICKNESS IS 0.139; FOUND TO BE OUT OF LIMITS IAW SRM 53-70-1A-1.;[04] REMOVED INTERCOSTAL AT LBL 50 BETWEEN STA 927 AND 947 PER SRM 51-40-02.;[05] REMOVED INTERCOSTAL AT LBL 50 BETWEEN STA 947 AND 967 PER SRM 51-40-02.;[06] REMOVED INTERCOSTAL AT LBL 25 FROM IN BETWEEN FLOOR BEAMS 947 AND 967 PER SRM 51-40-02;[07] REMOVED FLOOR SUPPORT AT STA 950 BETWEEN LBL 26 AND LBL 50 PER SRM 51-40-02;[08] REMOVED INTERCOSTAL AT LBL 16 FROM BETWEEN FLOOR BEAMS 947 AND 967 PER SRM 51-40-02.;[09] REMOVED FLOOR SUPPORT STA 927 TO 947; LBL 16 AND INTERCOSTAL STA 927 TO 947; LBL 25 PER SRM 51-40-02.;[10] REINSTALLED LAV. MOUNT AT LBL 24 IAW SRM 51-40-02.;[11] REPAIRED FLOOR BEAM STA. 947.5 AT LBL 24 IAW EA24-153-00664. LINE#2804 BARCODE: TTG8Q00S5KFB;[12] C/W INSPECTION;[13] REPAIRED FLOOR BEAM STA. 947.5 AT LBL 24 IAW EA24-153-00664; REFER TO EA FOR WORK PERFORMED.

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