SDR QMLA2012041612061

Service difficulty report · Bleed Valve · Snias AS350BA

Difficulty date: April 16, 2012
Submitted: April 18, 2012
Operation: Air carrier
Aircraft: N111LN
Make and model: Snias AS350BA
Aircraft serial: 1602
Aircraft time: 12,489 hours, 47,483 cycles
Engine: Tmeca ARRIEL1B
Engine time: 10,980 hours, 27,838 cycles
System (JASC): 7532 · Compressor Bleed Valve
Part: Bleed Valve
Part number: 3131200
Part serial: 78
Condition: Failed
Location: Engine
Stage of operation: AA
How discovered: O
Nature of condition: R, E
Precautionary procedure: B, A

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

What was found

IN CRUISE, AT APPROX 78 PERCENT TORQUE, 110 KIAS, AND 2000 FT MSL, EXPERIENCED A VERY LOUD NOISE & HARD JERK IN YAW AXIS OF AT LEAST 45 DEGREES TO RT. REPLACED ENGINE BLEED VALVE. TEST FLIGHT ACCOMPLISHED. NO DEFECTS REPORTED, ACFT RETURNED TO BASE.