SDR FDEA200910123539

Service difficulty report · Stiffener · Boeing 75721B

Difficulty date: October 12, 2009
Submitted: October 12, 2009
Operation: Air carrier
Aircraft: N934FD
Make and model: Boeing 75721B
Aircraft serial: 24331
Aircraft time: 50,153 hours, 32,684 cycles
System (JASC): 5420 · Nacelle/Pylon Miscellaneous Structure
Part: Stiffener
Part number: 311N522056
Condition: Cracked
Location: Nr 2 Pylon
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

NR 2 PYLON OTBD SKIN AT PP STA 185.35, WL 151.33 STIFFENER PN 311N5220-56 FOUND CRACKED AT TOP CORNER. (APPROX. 0.75" LENGTH) CRACKED STIFFENER ON NR 2 PYLON AT PP STA 185.35, WL 151.33, REMOVED AND REPLACED IAW SRM 51-40-02 REV 98. REPAIR IS CLASSIFIED AS MINOR IAW GMM 6-2-100 CRITERIA.

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