PA28 pilot has mechanical problem, declares an emergency and lands at slc.

Attributes
ACN	564884
Time
Date	200210
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : slc.airport
State Reference	UT
Altitude	msl single value : 6500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : s46.tracon
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee Arrow IV
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 25 flight time total : 320 flight time type : 200
ASRS Report	569884
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance
Independent Detector	other flight crewa
Resolutory Action	controller : provided flight assist flight crew : overcame equipment problem flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

When instructed to descend by salt lake approach, I attempted to pull power, but discovered that I had no throttle authority/authorized. Power was at full. I tried to troubleshoot to no avail. I had a strong tailwind and was at 160-165 KTS ground speed. I declared an emergency knowing I would have to get over a runway and pull my mixture closed to dead stick in. I landed successfully on runway 35 at slc. No injuries or damage. Upon removal of the cowling, it was discovered that the a&P, who last worked on my plane had not put a cotter pin with the retaining nut and when the nut came loose my throttle came disconnected.

Original NASA ASRS Text

Title: PA28 PLT HAS MECHANICAL PROB, DECLARES AN EMER AND LANDS AT SLC.

Narrative: WHEN INSTRUCTED TO DSND BY SALT LAKE APCH, I ATTEMPTED TO PULL PWR, BUT DISCOVERED THAT I HAD NO THROTTLE AUTH. PWR WAS AT FULL. I TRIED TO TROUBLESHOOT TO NO AVAIL. I HAD A STRONG TAILWIND AND WAS AT 160-165 KTS GND SPD. I DECLARED AN EMER KNOWING I WOULD HAVE TO GET OVER A RWY AND PULL MY MIXTURE CLOSED TO DEAD STICK IN. I LANDED SUCCESSFULLY ON RWY 35 AT SLC. NO INJURIES OR DAMAGE. UPON REMOVAL OF THE COWLING, IT WAS DISCOVERED THAT THE A&P, WHO LAST WORKED ON MY PLANE HAD NOT PUT A COTTER PIN WITH THE RETAINING NUT AND WHEN THE NUT CAME LOOSE MY THROTTLE CAME DISCONNECTED.

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.