Service difficulty report · Beam · Boeing 7377H4

Difficulty date
December 7, 2021
Submitted
December 22, 2021
Operation
Air carrier
Aircraft
N910WN
Make and model
Boeing 7377H4
Aircraft serial
36618
Aircraft time
45,600 hours, 27,244 cycles
Part
Beam
Condition
Corroded
Location
Fuselage
Stage of operation
UK
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 ON B.S. 259 LATERAL BEAM L.B.L. 10 - R.B.L. 10; W.L. 207.54. REMOVED CORROSION ON STA 259 LATERAL BEAM LBL 10- RBL 10; WL 207.54. AREA BLENDED IS 22' BY 1.3' ON UPPER SURFACE PER SRM 51-10-02-0G-0. ACCOMPLISHED UT INSPECTION IAW NDTM D6-37239 PART 4 51-00-00 PROC 2. LOWEST REMAINING THICKNESS .088. TOOL I.D. E650 ATS 2341. ACCOMPLISHED HFEC INSPECTION IAW NDTM D6-37239 PART 6 51-00-00 PROC 16 AND 53-30-00 PROC 3. ACCOMPLISHED HFEC INSPECTION IAW NDTM D6-37239 PART 6 51-00-00 PROC 23. NO CRACKS FOUND. REPAIRED DAMAGE PER EA 21-153-03707.

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