Service difficulty report · Scroll · Bell 407

Difficulty date
May 8, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Bell 407
Aircraft time
6,522 hours
Engine
Allsn 250C47B
Part
Scroll
Part number
23074076C
Condition
Cracked
Location
Compressor
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) CRACK IN SCROLL FOUND BY AME AFTER COMPRESSOR ASSY WAS REMOVED FOR LOOSE PERCUSSION WELDED ATTACHMENT STUDS. COMPRESSOR ASSY BEING SHIPPED FOR REPAIR. SCROLL, SN FU40784. SCROLL TSN TO FOLLOW.

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