Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
February 6, 2019
Submitted
March 4, 2022
Operation
Air carrier
Aircraft
N273WN
Make and model
Boeing 7377H4
Aircraft serial
32528
Aircraft time
41,659 hours, 24,799 cycles
Part
Floorbeam
Condition
Corroded
Location
Aft Cargo Bay
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 COMPT. FLOOR BS787 TO BS827; RBL 14'; CORROSION ON UNDERSIDE OF FLOOR BEAM AT 10 EACH NUTPLATES. MARKED. / REMOVED CORROSION ON LOWER SURFACE OF FLOOR BEAM STA 787-827 IAW SRM 51-10-02-0G-0. VERIFIED LIMITS FOUND TO BE OUT OF LIMITS OIRIGINAL 'T' .072' REMOVED .052' REMAINING .020' REMAINING .020' IAW B737-700 SRM 53-00-53-1A-2. REMOVED & REPLACED FLOOR BEAM AT STA 787-827 IAW B737-700 SRM 51-40-02-0G-0 / EA 1-A53-8210 REV. 5 ATAG # SH1103

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