Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
May 5, 2024
Submitted
May 31, 2024
Operation
Air carrier
Aircraft
N8693A
Make and model
Boeing 7378H4
Aircraft serial
36921
Aircraft time
26,036 hours, 12,784 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 GALLEY FLOOR STRUCTURE WET AREA AT STA 986.5 APPROXIMATELY 18' I/B OF AFT SERVICE DOOR OPENING HAS SMALL AREA OF SURFACE CORROSION ON FLOOR BEAM FASTENER HOLE. BLENDED LIGHT CORROSION PER SRM 51-10-02. REMAINING THICKNESS .140. DAMAGE REMOVAL IS OUT OF LIMITS PER SRM 53-70-51-1A-1. PERFORMED DETAILED INSPECTION OF THE ADJACENT STRUCTURE IN THE REPAIR, NO DAMAGE NOTED. PER SRM 53-70-51-2R-6.;[04] PERFORMED (HFEC) SURFACE INSPECTION PER NDT PART 6; 51-00-00; PROCEDURE 23. NO DEFECTS FOUND. PERFORMED OPEN HOLE HFEC INSPECTION PER 737 NDT PART 6; 51-00-00, PROCEDURE 16. NO DEFECTS FOUND. FLAP PEENED, TREATED, & PRIMED AREA PER SRM 53-70-51-2R-6; ALTERNATIVE 1. DRILLED; COUNTERSUNK; AND DEBURRED REPAIR HOLES IN 986.5 FLOORBEAM FORWARD FLANGE PER SRM 53-70-51-2R-6; ALTERNATIVE 1. FABRICATED; LOCATED; DRILLED; AND DEBURRED REPAIR STRAP PER SRM 53-70-51-2R-6; ALTERNATIVE 1. TREATED AND PRIMED REPAIR STRAP PER SRM 53-70-51-2R-6, ALTERNATIVE 1. INSPECTED C/A 5; 6; AND 7 PER SRM 53-70-51-2R-6; ALTERNATIVE 1. ACCOMPLISHED REPAIR OF 986.5 FLOORBEAM APPROX 18 " I/B OF AFT SERVICE DOOR OPENING PER SRM 53-70-51-2R-6; ALTERNATIVE 1. ACCOMPLISHED REPAIR OF 986.5 FLOORBEAM APPROXIMATELY 18" I/B OF AFT SERVICE DOOR OPENING PER SRM 53-70-51-2R-6; ALTERNATIVE 1.

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