Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
April 7, 2024
Submitted
May 1, 2024
Operation
Air carrier
Aircraft
N8685B
Make and model
Boeing 7378H4
Aircraft serial
36723
Aircraft time
26,629 hours, 13,050 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 987
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- CORROSION ON FLOORBEAM AT HOLE- STA 987; RBL +44. REMOVED CORROSION IAW SRM 51-10-02. DAMAGE REMOVAL APPROX .065' OUT OF LIMITS PER SRM 53-70-51-1A-1. CUT & REMOVED DAMAGED PART OF FLOORBEAM IAW SRM 53-70-51-2R-6, REPAIR 6, ALTERNATIVE 4. VERIFIED DAMAGE REMOVAL PER SRM 53-70-51-2R-6, REPAIR 6, ALTERNATIVE 4. C/W NDT INSPECTION PER SRM 53-70-51-2R-6, REPAIR 6, ALTERNATIVE 4. NDT PART 6; 51-00-00 PROCEDURE 23, NDT PART 6; 51-00-00 PROCEDURE 16, FLAP PEENED BLENDED AREA IAW SOPM 20-10-03, FABRICATED & LOCATED/DRILLED FASTENER HOLES IN -1 STRAP, FABRICATED & LOCATED/DRILLED FASTENER HOLES IN -2 ANGLE AND -3 FILLER. INSTALLED REPAIR , APPLIED PRIMER TO FASTENER HEADS; AND FILLET SEAL PER SRM 53-70-51-2R-6 ALTERNATIVE 4.

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