11.   The road from boyhood brilliance in Kiev to the faculty of a small commuter college in Brooklyn seemed at times as unpredictable as the endless digits of pi.

12.   Police and airport officials say the small commuter plane reported problems after takeoff.

13.   A spokesman for United Aviation, a small provincial commuter airline, declined comment Tuesday.

14.   Buses and taxis stayed off the roads, and small commuter airlines and cargo companies at regional airports remained grounded.

15.   Buses and taxis stayed off the roads, and small commuter airlines and cargo companies were grounded at regional airports.

16.   Small commuter airlines and cargo companies at regional airports remained grounded.

17.   Three people died when their small commuter jet crash into the Poconos in December.

18.   The safety of small commuter planes was called into question Monday by an airline passenger organization, but the airline industry rejected the claim as unfounded.

19.   US transport authorities called Tuesday for tougher safety standards for small commuter airlines which have come under scrutiny after a series of mishaps including a deadly crash last month.

20.   The agency in the past has suspended operations of small commuter airlines and charter carriers, but a major airline has not been shut down in recent memory.