Service difficulty report · Compressor Wheel · Braero BAE125800A

Difficulty date
October 20, 2004
Submitted
March 2, 2005
Operation
General aviation
Aircraft
N48Y
Make and model
Braero BAE125800A
Aircraft serial
258009
Engine
Garrtt TFE7315R
Part
Compressor Wheel
Part number
A4504174
Condition
Damaged
Location
Apu
Component
Apu · Hamstd
Component part number
T62T39
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

RECENTLY EXPERIENCED A PROBLEM WITH A RELATIVELY LOW TIME COMPRESSOR WHEEL. THIS NEW STYLE COMPRESSOR WHEEL IS A REPLACEMENT WHEEL TO SUPPORT AD NR20021502. THE WHEEL IN QUESTION LOST A LARGE INDUCER TIP THAT PENETRATED, AND CAME VERY CLOSE TO EXITING THE AIR INLET HOUSING. THIS WHEEL WAS INSTALLED 20 MONTHS AGO. AT THE TIME OF THIS EVENT IT HAD ACCUMULATED 265.1 HOURS AND 660 CYCLES. BESIDES THE MISSING INDUCER TIP, SEVERAL BLADES EXHIBIT INDUCER BLADE CRACKS CLOSE TO THE WHEEL BORE. THERE WAS NO INDICATION OF BEARING FAILURE, FOD, OR IMPACT WITH THE AIR INLET.