Service difficulty report · Bevel Gear · Emb EMB145XR

Difficulty date
June 2, 2004
Submitted
July 22, 2004
Operation
General aviation
Make and model
Emb EMB145XR
Engine
Allsn AE3007A
Part
Bevel Gear
Part number
23056789
Condition
Failed
Location
Accessory G/B
Stage of operation
CR
How discovered
O
Nature of condition
Y
Precautionary procedure
B, A

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

What was found

(CAN) FLIGHT LOST POWER NOTICED SHORTLY AFTER TAKE OFF. NR 2 INDICATION WENT TO ZERO. THE CREW REPORTED THE NR 1 ENGINE SHUT DOWN IN FLIGHT. THE SHUT DOWN WAS UNCOMMANDED. THE AIRCRAFT RETURNED AND LANDED WITHOUT FURTHER INCIDENT. DISASSEMBLY OF THE ENGINE AT RRC REVEALED THAT NR 6 BEARING BEVEL DRIVING GEAR SYSTEM THAT DRIVE MODULE 05 ACCESSORY GEARBOX HAS FAILED. BEVEL GEAR HAS BROKEN IN PIECES. SUSPECT BEVEL DRIVE SHAFT DRIVING GEARBOX IS CAUSING THE FAILURE. SHAFT RETURNED TO INDY FOR INVESTIGATION.

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