Service difficulty report · Rotors · Bell 47G4

Difficulty date
May 10, 1995
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Bell 47G4
Engine
Allsn 250C20B
Part
Rotors
Part number
6890550
Condition
Eroded
Location
4th & 5th Stages
Part time
9,304 hours
Stage of operation
IN
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

(CAN) HEAVY EROSION OF 4TH AND 5TH STAGE ROTORS AND UNDERCUTTING ON 4TH AND 5TH STAGE STATOR VANES. CORROSION OF COMPRESSOR SCROLL.

More about the Bell 47G-4