An A306 crew, departing kmem, experienced a main cargo deck smoke warning, rtned to kmem.

Attributes
ACN	535480
Time
Date	200201
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mem.airport
State Reference	TN
Altitude	msl single value : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mem.tracon
Operator	common carrier : air carrier
Make Model Name	A300
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 166 flight time total : 16000 flight time type : 375
ASRS Report	535480
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : master warning other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist flight crew : declared emergency flight crew : landed in emergency condition flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Took off from mem runway 18L. At 2000 ft MSL, crc master warning sounded and ECAM stated that we had a positive smoke indication on the main cargo deck. Requested immediate rtn to mem. Directed first officer to accomplish ECAM procedures while I flew aircraft and operated radios. At this point all red ECAM and overhead warnings stopped. Only amber ECAM warnings remained which first officer accomplished. First officer briefed me on status, and informed me that the red MID1 compartment smoke light had been on accompanied by both system a and B detector amber lights. Additionally detector amber light in aft area had been on. At no time did we notice actual smoke in the cockpit. We declared an emergency with ATC so that emergency equipment would be standing ny in case smoke became evident or fire broke out. We set up for an immediate approach to runway 27, accomplished appropriate checklist, and were cleared a visual approach to runway 27. Approach and landing were uneventful. On ground we were directed to gate X. We continued to monitor smoke detection system. After parking, fire and emergency personnel entered the aircraft for inspection. No smoke or fumes were found. We secured aircraft and turned it over to maintenance.

Original NASA ASRS Text

Title: AN A306 CREW, DEPARTING KMEM, EXPERIENCED A MAIN CARGO DECK SMOKE WARNING, RTNED TO KMEM.

Narrative: TOOK OFF FROM MEM RWY 18L. AT 2000 FT MSL, CRC MASTER WARNING SOUNDED AND ECAM STATED THAT WE HAD A POSITIVE SMOKE INDICATION ON THE MAIN CARGO DECK. REQUESTED IMMEDIATE RTN TO MEM. DIRECTED FO TO ACCOMPLISH ECAM PROCS WHILE I FLEW ACFT AND OPERATED RADIOS. AT THIS POINT ALL RED ECAM AND OVERHEAD WARNINGS STOPPED. ONLY AMBER ECAM WARNINGS REMAINED WHICH FO ACCOMPLISHED. FO BRIEFED ME ON STATUS, AND INFORMED ME THAT THE RED MID1 COMPARTMENT SMOKE LIGHT HAD BEEN ON ACCOMPANIED BY BOTH SYS A AND B DETECTOR AMBER LIGHTS. ADDITIONALLY DETECTOR AMBER LIGHT IN AFT AREA HAD BEEN ON. AT NO TIME DID WE NOTICE ACTUAL SMOKE IN THE COCKPIT. WE DECLARED AN EMER WITH ATC SO THAT EMER EQUIP WOULD BE STANDING NY IN CASE SMOKE BECAME EVIDENT OR FIRE BROKE OUT. WE SET UP FOR AN IMMEDIATE APCH TO RWY 27, ACCOMPLISHED APPROPRIATE CHECKLIST, AND WERE CLRED A VISUAL APCH TO RWY 27. APCH AND LNDG WERE UNEVENTFUL. ON GND WE WERE DIRECTED TO GATE X. WE CONTINUED TO MONITOR SMOKE DETECTION SYS. AFTER PARKING, FIRE AND EMER PERSONNEL ENTERED THE ACFT FOR INSPECTION. NO SMOKE OR FUMES WERE FOUND. WE SECURED ACFT AND TURNED IT OVER TO MAINT.

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.