Service difficulty report · Service Door · Boeing 7377H4

Difficulty date
December 21, 2021
Submitted
January 31, 2022
Operation
Air carrier
Aircraft
N944WN
Make and model
Boeing 7377H4
Aircraft serial
36659
Aircraft time
38,945 hours, 23,467 cycles
Part
Service Door
Condition
Corroded
Stage of operation
UK
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 INTERNAL SKIN TOILET SERVICE DOOR 145AL BETWEEN BST 847 TO BST 867 LBL 31 AND WL 165.1 AT LOWER FUSELAGE ; 2021-567374 / [01] TOOL USED ULTRASONIC THICKNESS GAUGE P/N: 45MG; S/N: 130061901; CAL DUE DATE: 11-MAY-22; [02] REPLACED TOILET SERVICE DOOR #145AL BETWEEN BST 847 TO BST 867 LBL 31 AND WL 165.1 AT LOWER FUSELAGE IAW B737-700 SRM 51-10-02 AND AMM 52-49-07; PART NUMBER USED: 146A7410Y7; PO#2021-244159.SEE INDIVIDUAL SIGN OFFS BELOW; [03] REPLACED TOILET SERVICE DOOR #145AL BETWEEN BST 847 TO BST 867 LBL 31 AND WL 165.1 AT LOWER FUSELAGE IAW B737-700 SRM 51-10-02 AND AMM 52-49-07; PART NUMBER USED: 146A7410Y7; PO#2021-244159.

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