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SDR QMLA2015042415031

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Service difficulty report · Motor · Snias AS350B2

FAA SDR system

Difficulty date
April 24, 2015
Submitted
April 29, 2015
Operation
Air carrier
Aircraft
N105HN
Make and model
Snias AS350B2
Aircraft serial
2817
Aircraft time
10,974 hours, 40,903 cycles
Engine
Tmeca ARRIEL1D1
Engine time
6,924 hours, 13,323 cycles
System (JASC)
2150 · Cabin Cooling System
Part
Motor
Part number
0500521
Condition
Failed
Location
Ac System
Stage of operation
CL
How discovered
O
Nature of condition
E, B
Precautionary procedure
B, A

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

What was found

WHILE CLIMBING TO ALTITUDE, ACFT EXPERIENCED A SIGNIFICANT VIBRATION IN THE AIRFRAME & PEDALS. WHEN THE ACFT WAS ON SHORT FINAL FOR THE EMER LANDING, ALL THREE CREW MEMBERS SMELLED SMOKE & FUMES IN THE COCKPIT. ALL ENG INDICATIONS & ELEC INDICATIONS WERE NORMAL. ACFT LANDED WITHOUT DIFFICULTY AT N32 DEG 25.04' X W80 DEG 51.19'. FOUND THE FWD EVAPORATOR FAN MOTOR TO BE THE CAUSE OF THE FAILURE. THE AIR CONDITIONING SYS WAS DEFERRED & THE ACFT WAS PLACED BACK INTO SERVICE WITHOUT ANY OTHER DEFECTS NOTED.