"Bertie the Bunyip" wrote in message
...


There was a 727 that crashed because of iced over pitot tubes. the pitot
heat wasn't truned on. The early pitot heat swtiching gave you greens if
the heat was n, bu tnothing if it was turned off. All Boeings were
modified to have a big amber light on if the heat was left off and
indications throughout the industry were rethought to ultimately develop
the "dark cockpits" we have today, mostly due to that accident.

Bertie


Thanks Bertie.

Trivia Q. How many passenger windows were in the last 727 that Boeing
built?

A. Zero, it was a cargo plane. The windows were blocked over. They were
actually installed in case the aircraft was ever converted to a PAX version.
--
Regards, BobF.