Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 7, 2022
Submitted
June 15, 2022
Operation
Air carrier
Aircraft
N253WN
Make and model
Boeing 7377H4
Aircraft serial
32511
Aircraft time
53,013 hours, 31,527 cycles
Part
Skin
Part number
145AL
Condition
Corroded
Location
Toilet Door
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

TOILET SERVICE DOOR 145AL INTERNAL SKIN AREA AROUND BONDING WIRE CORRODED / [01] CLEANED CORROSION ON TOILET SERVICE DOOR 145AL INTERNAL SKIN AREA AROUND BONDING WIRE REF B 737-700 SRM 51-10-02-0G-0. FOUND PITTED CORROSION DEEP INTO THE MATERIAL AND IT IS OUT OF LIMITS. DOOR REQUIRES REPLACEMENT.;[02] VERIFIED DEEP PITTING CORROSION ;DOOR NEEDS REPLACEMENT;[03] REMOVED AND REPLACED TOILET SERVICE DOOR 145AL REF B 737-700 AMM 52-49-07-000-801. WORK WAS ACCOMPLISHED BY TECHNICIAN JESUS HERNANDEZ EMPL # 1709;[04] VERIFIED STEP 3

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