Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
August 8, 2023
Submitted
September 6, 2023
Operation
Air carrier
Aircraft
N8547V
Make and model
Boeing 7378H4
Aircraft serial
63572
Aircraft time
19,953 hours, 9,831 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Zn 200 Fus Top
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

PASSENGER CABIN FLOOR BEAM CORRODED AROUND AND UNDER LAV TIE DOWN FITTING BS947 LBL24.5.<OUT OF LIMITS PER SRM 53-70-51-1A-1;[03] CUT AND REMOVED DAMAGED FLANGES OF THE UPPER CHORD OF THE FLOOR BEAM AT STA. 947 FROM LBL 9' TO LBL 41.5' PER SRM 53-70-51-2R-5; ALTERNATIVE 2.;[04] INSPECTION C/W BUY BACK OF CUT FROM REMOVED DAMAGE FLAP PEENING OF THE CUT EDGES ON FLOOR BEAM PER SOPM 20-10-03. PRE DRILLED RIVET LAYOUT ON THE VERTICAL ANGLE OF T- CAP REPAIR PART AND PLUGGED RELOCATED BRACKET HOLE PER SRM 53-70-51-2R-5.;[08] FABRICATED REPAIR PARTS PER SRM 53-70-51-2R-5.;[09] FABRICATED REPAIR PARTS PER SRM 53-70-51-2R-5. (RII);[10] ALODINED AND PRIMED REPAIR AREA AND REPAIR PARTS IAW SRM 53-70-51-2R-5RELOCATED SUPPORT BRACKET ON THE REAR SIDE OF <BR>STA. 947; AT LBL 3.5' PER SRM 53-70-51-2R-5.;[13] INSPECTED C/A #12 RELOCATION OF SUPPORT BRACKET.INSTALLED REPAIR PARTS ON FLOORBEAM AT STA. 947 FROM LBL 15' TO LBL 47' PER SRM 53-70-51-2R-5; ALTERNATIVE 2.;[17] INSTALLED REPAIR PARTS ON FLOORBEAM AT STA. 947 FROM LBL 15' TO LBL 47' PER SRM 53-70-51-2R-5; ALTERNATIVE 2<BR>C/W INSPECTION INSTALLED REPAIR PARTS ON FLOORBEAM AT STA. 947 FROM LBL 2' TO LBL 15' PER SRM 53-70-51-2R-5; ALTERNATIVE 2. (RII);[21] RAJESH ALI (TECHNICIAN); 17-AUG-2023 09:42 UTC<BR>INSTALLED REPAIR PARTS ON FLOORBEAM AT STA. 947 FROM LBL 2' TO LBL 15' PER SRM 53-70-51-2R-5; ALTERNATIVE 2. (RII);[22] C/W;[23] VERIFIED ALL STEPS C/W

More about the Boeing 737-8H4