Service difficulty report · Skin · Boeing 7377H4

Difficulty date
March 11, 2019
Submitted
March 7, 2022
Operation
Air carrier
Aircraft
N415WN
Make and model
Boeing 7377H4
Aircraft serial
29836
Aircraft time
59,864 hours, 35,041 cycles
Part
Skin
Condition
Corroded
Location
Aft Cargo Bay
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

AFT CARGO DOOR INNER SKIN HAS CORROSION AROUND LOWER ACCESS HOLES / REMOVED CORROSION AT AFT CARGO DOOR INNER SKIN LOWER ACCESS HOLES IAW 737-700 SRM 51-10-02-0G-0 EVALUATED MATERIAL LOSS AT LOWER 4 ACCESS HOLES AS LOWER FWD ACCESS HOLE ORG 'T' = .045 REM = .022' LOSS OF .023' OUT OF LIMITS LOWER CENTER AFT ACCESS HOLE ORG 'T' .045' REM .029' LOSS .016' IS OUT OF LIMITS IAW 737-700 SRM 52-30-01-1A-1 FIG 104 NON ROUTINE X922142 AND X922143 GENERATED FOR REPAIRS EVALUATED MATERIAL LOSS AT LOWER CENTER FWD ACCESS HOLE AS ORG 'T' = .045' REM .035' LOSS OF .010' IS WITHIN LIMITS LOSS AT LOWER AFT ACCESS IS ORG 'T' = .045' REMO .042' LOSS OF .003' IS WITHIN LIMITS IAW 737-700 SRM 52-30-01-1A-1 FIG 104.

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