Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
May 14, 2019
Submitted
March 10, 2022
Operation
Air carrier
Aircraft
N961WN
Make and model
Boeing 7377H4
Aircraft serial
36962
Aircraft time
27,163 hours, 16,355 cycles
Part
Intercostal
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

FWD LAV AFT INBD FLOOR MOUNT FITTING HAS EVIDENCE OF CORROSION INSIDE MOUNT BOLT HOLE / REMOVED AND REPLACED THE INTERCOSTAL BETWEEN FLOOR BEAMS STA 295.5 AND STA 312 AT LBL 11.16 PER SRM 51-10-02. ALSO REPLACED THE LAV TIE DOWN FITTING ON SAME INTERCOSTAL PER SRM 51-10-02. SEE WIPS AND SUBTASKS.

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