Date: 25 Mar 97 03:38:11 From: Reid Fairburn <cr_king@cr_king.seanet.com> References: 1
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At 02:38 AM 3/20/97, you wrote: >The 737-300 engine bleed valves are (according to an Aircraft Flight >Manual): > >1. Shutoff valves >2. Pressure regulator valves >3. Reverse flow check valves > >Are there versions of 737s that do not use the Reverse flow check valve >feature? =====737-200...which is why you had to shutdown the engine asap with a startvalve stuck open...as well as turn off the bleed valve. >To extend the idea further, will you ever be able to heat up the engine >cowl inlets with the Engine Anti-ice switches "on", while on the ground, >with ONLY the APU running? =======No! There is a requirement to clean the engine inlet prior to start...which will allow further warming and cleanup after start. Don't count on using the engine anti-ice to do all the cleanup. One operator started the engine with the intake full of snow...at least he tried...and then complained that the anti-ice didn't work!