Service difficulty report · Support · Boeing 7377H4

Difficulty date
November 15, 2021
Submitted
December 6, 2021
Operation
Air carrier
Aircraft
N914WN
Make and model
Boeing 7377H4
Aircraft serial
36622
Aircraft time
45,576 hours, 27,409 cycles
Part
Support
Condition
Corroded
Location
Fuselage
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 FCB RH FLOOR-TO-SIDEWALL SUPPORT; BS 500A+6'; 500A+18'; 500B+14'; 500B+18'; 500C+2'; 500C+6'; 500C+14' RBL 24 (ALL MARKED) ; / [01] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT RBL2; WL156; BODY;STATION:500A+6; 500A+18; 500B+14; 500B+18; 500C+2; 500C+6 500C+14 ORIGINALTHICKNESS=0.040'; FOUND TO BE OUT OF LIMITS. I.A.W. SRM 53-00-53-1A-2; ALLOWABLE DAMAGE 2; STEP 4.2A. TOOL USED MICROMETER ID:ATS1671; DUE DATE: 01/2022; [02] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT RBL24; WL156; BODY;STATION:500A+6; 500A+18; 500B+14; 500B+18; 500C+2; 500C+6 500C+14 ORIGINALTHICKNESS=0.040'; FOUND TO BE OUT OF LIMITS. I.A.W. SRM 53-00-53-1A-2; ALLOWABLE DAMAGE 2; STEP 4.2A.

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