Flight crew of an air carrier turboprop shut down the right engine and declared an emergency during descent due to an overtemp indication and the engine operating erratically.

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Attributes
ACN	390726
Time
Date	199801
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mem
State Reference	TN
Altitude	msl bound lower : 12000 msl bound upper : 12000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zme
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	other other : other pilot : atp pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 7100 flight time type : 4700
ASRS Report	390726
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

During our descent, the engine overtemp (right side) light came on along with erratic engine indications. The emergency checklist was completed however the light remained on. The checklist told us to execute a precautionary shutdown. This was completed along with the checklist, an emergency was declared, passenger briefed and the flight landed in memphis without incident.

Original NASA ASRS Text

Title: FLC OF AN ACR TURBOPROP SHUT DOWN THE R ENG AND DECLARED AN EMER DURING DSCNT DUE TO AN OVERTEMP INDICATION AND THE ENG OPERATING ERRATICALLY.

Narrative: DURING OUR DSCNT, THE ENG OVERTEMP (R SIDE) LIGHT CAME ON ALONG WITH ERRATIC ENG INDICATIONS. THE EMER CHKLIST WAS COMPLETED HOWEVER THE LIGHT REMAINED ON. THE CHKLIST TOLD US TO EXECUTE A PRECAUTIONARY SHUTDOWN. THIS WAS COMPLETED ALONG WITH THE CHKLIST, AN EMER WAS DECLARED, PAX BRIEFED AND THE FLT LANDED IN MEMPHIS WITHOUT INCIDENT.

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.