Service difficulty report · Stiffener · Doug MD11F

Difficulty date
September 4, 2018
Submitted
September 4, 2018
Operation
Air carrier
Aircraft
N412SN
Make and model
Doug MD11F
Aircraft serial
48412
Aircraft time
70,480 hours, 14,244 cycles
Part
Stiffener
Part number
NCA6042117
Condition
Corroded
Location
Fuselage
Part time
70,480 hours, 14,244 cycles
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

FWD AVIONICS COMPARTMENT AFT PRESSURE BULKHEAD SUPPORT STRUCTURE IS CORRODED AT STA 475 LBL17 TO RBL 29. REMOVED, FABRICATED AND INSTALLED FWD AVIONICS COMPARTMENT AFT PRESSURE BULKHEAD FRAME STIFFENER AT STA 475 LBL 10 TO RBL 10 PER SRM 51-31-01 PG 1 AND DWG NCA6042-117 REF NRC A042921.

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