An SF340 experiences a cargo fire/smoke alarm on a long final into msp, mn.

Attributes
ACN	439348
Time
Date	199906
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp.airport
State Reference	MN
Altitude	msl single value : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : m98.tracon
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 30l
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	approach : instrument precision approach : straight in
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 99 flight time total : 3165 flight time type : 1052
ASRS Report	439348
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	aircraft equipment other aircraft equipment : cargo fire / smoke warning
Resolutory Action	aircraft : equipment problem dissipated flight crew : overcame equipment problem
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

During our approach to runway 30L at msp, the cargo smoke warning light illuminated. As per our company's QRH, we activated the cargo fire extinguisher. After activating the cargo extinguisher the cargo smoke warning light extinguished. I elected not to declare an emergency nor request crash fire rescue equipment and evacuate/evacuation the aircraft. I did elect to taxi to the gate prior to checking the cargo compartment due to the fact that the cargo smoke warning light had extinguished and there was no report from the flight attendant of smoke in the passenger cabin. Upon reaching the gate I inspected the cargo compartment and found no signs of smoke or indications that there had been a fire.

Original NASA ASRS Text

Title: AN SF340 EXPERIENCES A CARGO FIRE/SMOKE ALARM ON A LONG FINAL INTO MSP, MN.

Narrative: DURING OUR APCH TO RWY 30L AT MSP, THE CARGO SMOKE WARNING LIGHT ILLUMINATED. AS PER OUR COMPANY'S QRH, WE ACTIVATED THE CARGO FIRE EXTINGUISHER. AFTER ACTIVATING THE CARGO EXTINGUISHER THE CARGO SMOKE WARNING LIGHT EXTINGUISHED. I ELECTED NOT TO DECLARE AN EMER NOR REQUEST CFR AND EVAC THE ACFT. I DID ELECT TO TAXI TO THE GATE PRIOR TO CHKING THE CARGO COMPARTMENT DUE TO THE FACT THAT THE CARGO SMOKE WARNING LIGHT HAD EXTINGUISHED AND THERE WAS NO RPT FROM THE FLT ATTENDANT OF SMOKE IN THE PAX CABIN. UPON REACHING THE GATE I INSPECTED THE CARGO COMPARTMENT AND FOUND NO SIGNS OF SMOKE OR INDICATIONS THAT THERE HAD BEEN A FIRE.

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.