B737-300 flight crew experienced stuck throttle on descent. They shut down the engine and diverted.

Attributes
ACN	731213
Time
Date	200703
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : zzz.artcc
State Reference	US
Altitude	msl single value : 35000
Environment
Flight Conditions	IMC
Weather Elements	other
Aircraft 1
Controlling Facilities	artcc : zzz.artcc tower : den.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 100 flight time total : 9000 flight time type : 2300
ASRS Report	731213
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	731211
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed as precaution
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Upon initial descent to ZZZ right engine would not reduce below 75% N1. Contacted maintenance and dispatch and tried to get engine to reduce thrust. It wouldn't and we elected to shut the engine down and divert to ZZZ1 for the longer runway. The landing was uneventful and we taxied to the gate.

Original NASA ASRS Text

Title: B737-300 FLT CREW EXPERIENCED STUCK THROTTLE ON DESCENT. THEY SHUT DOWN THE ENGINE AND DIVERTED.

Narrative: UPON INITIAL DSCNT TO ZZZ R ENG WOULD NOT REDUCE BELOW 75% N1. CONTACTED MAINT AND DISPATCH AND TRIED TO GET ENG TO REDUCE THRUST. IT WOULDN'T AND WE ELECTED TO SHUT THE ENG DOWN AND DIVERT TO ZZZ1 FOR THE LONGER RWY. THE LNDG WAS UNEVENTFUL AND WE TAXIED TO THE GATE.

Data retrieved from NASA's ASRS site as of January 2009 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.