Service difficulty report · Door · Boeing 7377H4

Difficulty date
August 18, 2025
Submitted
September 12, 2025
Operation
Air carrier
Aircraft
N964WN
Make and model
Boeing 7377H4
Aircraft serial
36965
Aircraft time
45,186 hours, 27,867 cycles
Part
Door
Condition
Corroded
Location
Zone 800
Stage of operation
IN
How discovered
V
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

WATER SERVICE DOOR 146AR CORRODED ON EXTERNAL SKIN. HAND BLENDED AND REMOVED CORROSION DAMAGE ON DR PNL 146AR AND CHECKED WITH 10X MAG IAW SRM 52-40-01-1A-5 STEP 2C (1)UT IAW B737 NDT PART 4 51-00-00 PROCEDURE 2. ORIGINAL .120'; REMAINING .114'; LOSS .006'. MAT THICKNESS IS .120 MAT LOSS IS .006 MAT REMAINING IS .114 IT IS WITHIN LIMITS OF .25 MAX ALLOWABLE IAW 52-40-01-1A-5 STEP 4A FIG 103 DETAIL B.

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