Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
May 27, 2020
Submitted
June 30, 2020
Operation
Air carrier
Aircraft
N928WN
Make and model
Boeing 7377H4
Aircraft serial
36890
Aircraft time
40,809 hours, 24,748 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 787
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 CARGO COMPARTMENT BS 787+5', RBL20, WL156, FLOORBEAM UPPER SURFACE WAS CORRODED. THE CORROSION WAS BLENDED AND REMOVED IAW SRM 51-10-02-0G-0, SEC 15. MAT THICKNESS WAS .100 MATERIAL REMOVED .020 MAT REMAINING .080. FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2, FIG 103, SHEET 2. DRILLED AND REMOVED STRAP IAW SRM 51-40-02-0G-0. LOCATED AND DRILLED NEW STRAP IAW SRM 51-40-05-0G-0, AND DWG 146A8120, REV - . INSTALLED THE NEW STRAP IAW SRM 51-40-02-0G-0, AND DWG 146A8340 REV. APPLIED C.I.C.TO AREA IAW SRM 53-00-53-1A-2, STEP 2E.

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