Service difficulty report · Floorbeam · Boeing 7377CT

Difficulty date
May 6, 2019
Submitted
March 9, 2022
Operation
Air carrier
Aircraft
N570WN
Make and model
Boeing 7377CT
Aircraft serial
33657
Aircraft time
56,123 hours, 27,855 cycles
Part
Floorbeam
Condition
Corroded
Location
Main Cabin
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

CORROSION ON 986 FLOOR BEAM UPPER TEE CHORD SURFACE RBL 27 TO 43. / BLENDED CORROSION ON BS986 FLOOR BEAM UPPER CHORD RBL 27 TO RBL 43; DEEPEST BLEND AT RBL36 MEASURING 2' X 1.2' X .041' ALL FOUND TO BE OUT OF LIMITS PER SRM 53-70-51-1A-1 REPAIRED PER EA 1-A53-8241 REV 3

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