Service difficulty report · Nozzle · Boeing 74746NF

Difficulty date
March 15, 2013
Submitted
March 18, 2013
Operation
Air carrier
Aircraft
N452PA
Make and model
Boeing 74746NF
Aircraft serial
30810
Aircraft time
53,613 hours, 8,827 cycles
Part
Nozzle
Condition
Cracked
Location
Nr 2 Engine
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 WALKAROUND MAINTENANCE FOUND A CRACK ON THE EXHAUST NOZZLE OUTER SLEEVE, CRACK IS LOCATED AT THE 11 O'CLOCK POSITION ON THE NR 2 ENGINE. THE CRACK IS APPROXIMATELY 10" LONG. AS PER SRM 54-41-30 THE LENGTH OF THE CRACK IS OUT OF LIMITS. DISPOSITION IS TO STOP DRILL THE ENDS OF THE CRACK WITH A 0.125" DIAMETER HOLE, DVI EVERY 3 FLIGHT CYCLES; AND REMOVAL OF THE PART WITHIN 50 FLIGHT CYCLES.

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