Service difficulty report · Duct · Boeing 73776N

Difficulty date
April 28, 2014
Submitted
March 12, 2015
Operation
General aviation
Make and model
Boeing 73776N
Aircraft time
46,394 hours
Engine
Ge CFM567B24
Part
Duct
Condition
Ruptured
Location
Anti-Ice
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) A RUPTURED COWL ANTI-ICE DUCT WAS DISCOVERED DURING MAINTENANCE. THE DAMAGED DUCT CAUSED SIGNIFICANT HEAT DAMAGE TO THE ENGINE WIRING HARNESS. ENGINE FAULTS, VSV POSITION DISAGREE AND VSV POSITION OUT OF RANGE WERE FOUND. THE NR 1 ENGINE WAS REPLACED AS A RESULT OF THE DAMAGED DUCT.

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