1.   Smoke detectors installed in hotel corridors have an alarming ability not to detect smoke.

2.   After landing, the smoke was detected in the front of the plane and the emergency evacuation ensured, NTSB investigators said.

3.   Once on the ground, light smoke was detected in the front galley and the captain ordered an evacuation onto a taxiway.

4.   They can detect smoke before it is visible to human eyes.

5.   They can detect tobacco smoke from two counties away.

6.   When one of these hard-wired devices detects smoke, all of the alarms in the house go off, regardless of the location of the fire.

7.   No smoke was detected, said shuttle processing director Dave King.

8.   Sixteen minutes before the crash, the pilots detected smoke in the cockpit.

9.   Smoke was later detected in the cabin, forcing an evacuation that left four passengers with minor injuries.