SDR DALA1105849857

Service difficulty report · Stiffener · Doug DC951

Difficulty date: January 24, 2011
Submitted: January 25, 2011
Operation: Air carrier
Aircraft: N766NC
Make and model: Doug DC951
Aircraft serial: 47739
Aircraft time: 78,354 hours, 77,526 cycles
System (JASC): 5420 · Nacelle/Pylon Miscellaneous Structure
Part: Stiffener
Condition: Cracked
Location: Rt Nacelle
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

RT ENGINE PYLON ELECTRICAL COMPARTMENT UPPER FWD STIFFENER CRACKED ON INBD END APPROX .5 INCH. REMOVED CRACKED STIFFENER IAW SRM 51-30-2. RECEIVED MATERIAL TO FABRICATE NEW STIFFENER IAW SRM 54-10-0, SHT 1, 51-10-2. LOCATED, DRILLED, D-BURRED IAW SRM 51-10-4. TREATED & PRIMED IAW SRM 51-10-3. INSTALL NEW STIFFENER IAW SRM 51-30-2. REQUIRED INSPECTION COMPLETED.

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