Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
October 21, 2023
Submitted
November 30, 2023
Operation
Air carrier
Aircraft
N8604K
Make and model
Boeing 7378H4
Aircraft serial
39883
Aircraft time
38,645 hours, 17,832 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

CORROSION FLOOR BEAM LOCATED BS947.5 BETWEEN RBL49 TO RBL53 AND WL208.1 AT AFT GALLEY AREA 2023-650083<[01] PERFORMED PERMANENT REPAIR FLOOR BEAM UPPER CHORD BS947.5 AND BETWEEN RBL 2 TO RBL 60 AFT GALLEY AREA. (-1)T CHORD 1E/A MATERIAL USED: AND10136-3006; PO: 2023 125392. (-2) ANGLE 2 E/A MATERIAL USED:BAC1490-2885; PO:2022 163880. (-3)STRAPS 2E/A MATERIAL USED: 7075-T6 0.125; PO: 2022 147476.(-4) FILLER 3E/AMATERIAL USED: 7075-T6 0.100; PO:2012 531818. (-5)CLIP 2 E/A MATERIAL USED: BAC1503-101021; PO: 2023 121945. (-6) CLIP 2 E/A MATERIAL USED: BAC1503-101025; PO: 2023 121944 IAW SRM B737-800 53-70-51-2R-5 REPAIR 5 ALTERNATIVE 2 FIGURE 206 DETAIL B EA# 23-153-03331 [TTG8Q00PUH4D]; EA# 23-153-03331-WIP1 [TTG8Q00PM3XB] AND EA# 23-153-03331-WIP2 [TTG8Q00PPRRS] SEE INDIVIDUAL SIGN OFF BELOW.;[02] PERFORMED PERMANENT REPAIR FLOOR BEAM UPPER CHORD BS947.5 AND BETWEEN RBL 2 TO RBL 60 AFT GALLEY AREA. (-1)T CHORD 1E/A MATERIAL USED: AND10136-3006; PO: 2023 125392. (-2) ANGLE 2 E/A MATERIAL USED:BAC1490-2885; PO:2022 163880. (-3)STRAPS 2E/A MATERIAL USED: 7075-T6 0.125; PO: 2022 147476.(-4) FILLER 3E/AMATERIAL USED: 7075-T6 0.100; PO:2012 531818. (-5)CLIP 2 E/A MATERIAL USED: BAC1503-101021; PO: 2023 121945. (-6) CLIP 2 E/A MATERIAL USED: BAC1503-101025; PO: 2023 121944 IAW SRM B737-800 53-70-51-2R-5 REPAIR 5 ALTERNATIVE 2 FIGURE 206 DETAIL B EA# 23-153-03331

More about the Boeing 737-8H4