Service difficulty report · Vibratory Node · Emb EMB145XR

Difficulty date
June 20, 2007
Submitted
June 25, 2007
Operation
Air carrier
Aircraft
N34110
Make and model
Emb EMB145XR
Aircraft serial
145658
Aircraft time
13,042 hours, 6,980 cycles
Engine
Allsn AE3007A
Engine time
10,411 hours, 5,541 cycles
Part
Vibratory Node
Condition
Cracked
Location
Nr 2 Engine
Stage of operation
CR
How discovered
O
Nature of condition
Y
Precautionary procedure
B

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

What was found

RDU FLIGHT NR 3028 THE CREW REPORTED THE NR 2 ENGINE FAILED IN FLIGHT AT 29,000 FT. MAINTENANCE INSPECTED AND REPLACED THE NR 2 ENGINE. [07-17-07] THE ENGINE SHUTDOWN DUE TO THE FRACTURE OF THE UPPER BEVEL GEAR. THE ROOT CAUSE OF THIS FRACTURE IS A VIBRATORY NODE (3DOC) IN THE GEAR WHICH CAUSES A CRACK AND SUBSEQUENT BREAKAGE.

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