Service difficulty report · None · Boeing 7377Q8

Difficulty date
August 29, 2021
Submitted
October 5, 2021
Operation
Air carrier
Aircraft
N7859B
Make and model
Boeing 7377Q8
Aircraft serial
30641
Aircraft time
55,430 hours, 36,644 cycles
Part
None
Condition
Cracked
Location
Fuselage
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

CRACK FLOOR BEAM AT BS 294.5 RBL 55 FWD GALLEY AND LAV ; 2021-393046 / ] REPAIR CHORD; [2] ANGLE 2 E/A; [8] SHIM ) OF FLOOR BEAM LOC AT BS 294.5 BTW RBL 25 TO RBL 60 IAW B-737-700 SRM 53-10-51-2R-16 REPAIR 16 FIGURE 202 ALTERNATIVE 2 VIEW F AND B737-700 SRM 51-40-05. [1] REPAIR CHORD; [2] ANGLE 2 E/A; [3] STRAP; [4] TAPERED FILLER 2 E/A; [5] TAPERED FILLER 2 E/A; [6] FILLER; [7] SHIM AND [8] SHIM ); CUTOUT EDGES AND REPAIR AREA OF FLOOR BEAM UPPER CHORD LOC. AT BS 294.5 BTW RBL 25 TO RBL 60 IAW B-737-700 SRM 53-10-51-2R-16 REPAIR 16 AND B737-700 SRM 51-20-01; [19] CERTIFIED STEP 18; [20] GRANTED OK TO INSTALL OF REPAIR PARTS ( ITEMS: [1] REPAIR CHORD; [2] ANGLE 2 E/A; [3] STRAP; [4] TAPERED FILLER 2 E/A; [8] SHIM ) OF UPPER CHORD FLOOR BEAM LOC AT BS 294.5 BTW RBL 16 TO RBL 60; SUPPORT ANGLE LOC. AT BS 2O4.5 BTW RBL 34 TO RBL 60; VERTICAL STIFFENER LOC AT BS 294.5 RBL 23; SUPPORT ANGLE LOC. AT RBL 52 BTW BS 294.5 TO BS 312; STIFFENER LOC. AT RBL 41 BTW BS 294.5 TO BS 312 AND FASTENERS.; [21] COMPLETE STEP 20<BR>OK TO INSTALL GRANTED; RII; [22] LATE ENTRY PERFORMED DYE PENETRANT INSPECTION DONE ON NEW REPAIR CHORD AND NEW ANGLES (2 E/A) AS PER SOPM 20-20-02 CRACK INDICATION NOT FOUND; [23] LATE ENTRY : PERFORMED FLAP PEENING OF THE REPAIR PARTS OF THE FLOOR BEAM LOC BS 294.5 BTW RBL 25 TO RBL 60 IAW B-737-700 SRM 53-10,NG,NRC,2021-09-15 19:55:59,20Y,Y,MX,0,0,,CRACK FLOOR BEAM AT BS 294.5 RBL 55 FWD GALLEY AND LAV ; 2021-393046"

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