Service difficulty report · Spar Cap · Doug MD11

Difficulty date
February 7, 2010
Submitted
February 10, 2010
Operation
Air carrier
Aircraft
N272WA
Make and model
Doug MD11
Aircraft serial
48437
Aircraft time
52,049 hours, 10,001 cycles
Engine
Pwa PW4462
System (JASC)
5711 · Wing Spar
Part
Spar Cap
Part number
ARB74131
Condition
Corroded
Location
Lt Wing
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

DURING PERFORM TASK CARD WA5729 FOUND LEFT WING REAR SPAR UPPER CAP P/N ARB7413-1 CORROSION AT XW840 NRC. BLENDOUT THE CORROSION AREA AND THE DAMAGE WITHIN ALLOWABLE LIMITS IAW SRM 57-00-10 FIG 101 REV 42, APPLY PROTECTIVE COATING, COND CHECK NORMAL.

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