Service difficulty report · Doubler · Boeing 757251

Difficulty date
March 21, 2026
Submitted
March 23, 2026
Operation
Air carrier
Aircraft
N556NW
Make and model
Boeing 757251
Aircraft serial
33392
Aircraft time
63,432 hours, 29,195 cycles
Part
Doubler
Condition
Corroded
Location
Zone 100
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

CORROSION ON INTERNAL DOUBLER OF TRAY SERVICE WASTE BTW STA 418 TO STA 440 AND STGR 29L TO STGR 29R AT E/E COMPARMENT. CORROSION LEVEL 2. INTERNAL DOUBLER OF TRAY SERVICE WASTE BTW STA 418 TO STA 440 AND STGR 29L TO STGR 29R AT E/E COMPARTMENT WAS REPLACED PER B757-200 SRM 51-40-02-0G PAR. 4 AND 7. (1504672)