An atx frtr pilot left his aircraft unattended with one engine running.

Attributes
ACN	262081
Time
Date	199401
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : tys
State Reference	TN
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Commander 500
Operating Under FAR Part	Part 135
Flight Phase	ground : preflight
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 1710
ASRS Report	262081
Person 2
Affiliation	Other
Function	other personnel
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : less severe non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

During my run-up, I noticed my left engine manifold pressure would rise and left RPM gauge showed lower RPM than normal. I had just defrosted 6 in of snow and ice from airplane in hangar. I taxied to maintenance and parked in front of their maintenance hangar. The last few days my battery would not keep a charge. So I left my right engine running and shut the left engine down. Applied the parking brake and exited the aircraft with the right engine still at 1000 RPM. I approached a maintenance person to assist in inspecting the left engine and it checked ok! The reason for ths report is, I now realize how dangerous and irresponsible it was to leave my airplane with one engine running. It will never happen again in my airplane.

Original NASA ASRS Text

Title: AN ATX FRTR PLT LEFT HIS ACFT UNATTENDED WITH ONE ENG RUNNING.

Narrative: DURING MY RUN-UP, I NOTICED MY L ENG MANIFOLD PRESSURE WOULD RISE AND L RPM GAUGE SHOWED LOWER RPM THAN NORMAL. I HAD JUST DEFROSTED 6 IN OF SNOW AND ICE FROM AIRPLANE IN HANGAR. I TAXIED TO MAINT AND PARKED IN FRONT OF THEIR MAINT HANGAR. THE LAST FEW DAYS MY BATTERY WOULD NOT KEEP A CHARGE. SO I LEFT MY R ENG RUNNING AND SHUT THE L ENG DOWN. APPLIED THE PARKING BRAKE AND EXITED THE ACFT WITH THE R ENG STILL AT 1000 RPM. I APPROACHED A MAINT PERSON TO ASSIST IN INSPECTING THE L ENG AND IT CHKED OK! THE REASON FOR THS RPT IS, I NOW REALIZE HOW DANGEROUS AND IRRESPONSIBLE IT WAS TO LEAVE MY AIRPLANE WITH ONE ENG RUNNING. IT WILL NEVER HAPPEN AGAIN IN MY AIRPLANE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.