Briefly...
I believe that the following is true for UN-MODIFIED NG aircraft:
(i) speedbrake limited to 300kts IAS
(ii) Following ground de-icing, speed limit 270kts IAS until inspection of empennage carried out (approx one hour job using cherry-picker).
Just for comparison (calls for 'QRH, non-normals, facial muscular, tongue must be placed firmly in cheek, recall actions...'), here is a comprehensive guide to outstanding emergency speed restrictions applying to Airbus aircraft:
(i)
(ii)
(iii)
(iv)
(v)
(vi) etc
Hope that helps!
Last edited by NorthernSky; 6th October 2002 at 22:12.