SDR R7MA33684

Service difficulty report · Combust Chamber · Bell 407

Difficulty date
August 15, 2001
Submitted
November 13, 2001
Operation
Air carrier
Aircraft
N407SJ
Make and model
Bell 407
Aircraft serial
53422
Engine
Allsn 250C47B
Part
Combust Chamber
Part number
23030911
Part serial
41478
Condition
Damaged
Location
Engine
Part time
711 hours
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

BURNER DRAW VALVE WAS NOT COATED WITH ANTI-SEIZE FROM THE FACTORY. DURING REMOVAL OF THE VALVE, THREAD DAMAGE OCCURRED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

More about the Bell 407