An A300 ECAM and crc aural warning alerted avionics smoke together. An emergency was declared and th...

Attributes
ACN	906130
Time
Date	201008
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	A300
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Route In Use	Other On SID/STAR
Component
Aircraft Component	Fire Protection System
Person 1
Function	First Officer Pilot Flying
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 110 Flight Crew Total 12000 Flight Crew Type 1300
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

At approximately 300 ft after takeoff; we received an ECAM message of avionics smoke and a crc as well as the avionics smoke light illuminated on the overhead panel. We declared an emergency and leveled at 3;000 ft. The captain ran the appropriate ECAM and QRH checklists and prepared for the approach. When the checklists were complete the captain took control of the aircraft for the remainder of the flight; and I was the pilot monitoring for the remainder of the flight. We were immediately vectored for an ILS back to the airport for an overweight landing. We never had any actual indication of fire or smoke; no visible smoke or odors were present; but our priority was to land the aircraft as soon as possible per the checklist. Arff was notified and available upon landing. We had arff follow us to the ramp as a precaution. No smoke or fire was evident to them. Mechanics determined that it was an erroneous indication. The indication actually went away and came back several times while the mechanics were in the cockpit after block-in; they confirmed it was a false indication.

Original NASA ASRS Text

Title: An A300 ECAM and CRC aural warning alerted AVIONICS SMOKE together. An emergency was declared and the aircraft returned to land where maintenance determine the warnings were false.

Narrative: At approximately 300 FT after takeoff; we received an ECAM message of AVIONICS SMOKE and a CRC as well as the AVIONICS SMOKE light illuminated on the overhead panel. We declared an emergency and leveled at 3;000 FT. The Captain ran the appropriate ECAM and QRH checklists and prepared for the approach. When the checklists were complete the Captain took control of the aircraft for the remainder of the flight; and I was the pilot monitoring for the remainder of the flight. We were immediately vectored for an ILS back to the airport for an overweight landing. We never had any actual indication of fire or smoke; no visible smoke or odors were present; but our priority was to land the aircraft as soon as possible per the checklist. ARFF was notified and available upon landing. We had ARFF follow us to the ramp as a precaution. No smoke or fire was evident to them. Mechanics determined that it was an erroneous indication. The indication actually went away and came back several times while the mechanics were in the cockpit after block-in; they confirmed it was a false indication.

Data retrieved from NASA's ASRS site as of April 2012 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.

An A300 ECAM and crc aural warning alerted avionics smoke together. An emergency was declared and the aircraft returned to land where maintenance determine the warnings were false.