Narrative:

A burnt rubber smell happened in the cockpit and cabin after takeoff. No smoke; no engine or other anomalies. Fumes did not dissipate as they usually do and it was decided to declare an emergency and return to the departure airport. Landing uneventful. This was the first flight of the aircraft after heavy maintenance. There were 3 maintenance personnel on board. Note: speed below 10;000 ft exceeded 250 KIAS for a short period in order to expedite getting on the ground.

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Original NASA ASRS Text

Title: A B757 on a post maintenance test flight developed a burnt rubber smell after takeoff that did not dissipate. An emergency was declared and the flight returned to the departure airport.

Narrative: A burnt rubber smell happened in the cockpit and cabin after takeoff. No smoke; no engine or other anomalies. Fumes did not dissipate as they usually do and it was decided to declare an emergency and return to the departure airport. Landing uneventful. This was the first flight of the aircraft after heavy maintenance. There were 3 maintenance personnel on board. Note: speed below 10;000 FT exceeded 250 KIAS for a short period in order to expedite getting on the ground.

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.