PPRuNe Forums - View Single Post - B737 QRH type Incidents that could be useful training discussion points.
Old 19th Aug 2007, 15:18
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FMC OVERHEAT
 
Join Date: Dec 2004
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-Same as guidavide L/G incident but happened for left gear. We kept the lever in the UP position having the red light on. but then after putting the lever in OFF the light extinguished. So eveything went back to normal.
-Had some problems with FMC nav database. Right after T/O, had FMC Fail on both CDU which were completly stuck. No LSkeys were responding.Started APU, connected it on one bus, and thank god for that quick electrical disruption we recovered the FMC and both CDU's. It worked like magic !
Had that happening twice.
-Problems with Flaps, Couldn't extend past 25 Max. When you select 30 you have 25 indicated. Landed with existing flaps which were past 15.
-Shortly after starting descend, we noticed the CPCS controller was messing things up, at FL100 the controller was pressurizing and cabin alt reached 1500 ft below field elevation, tried STBY, and both MAN AC and DC modes, No luck.
The Outflow valve was not responding to imputs from the panel. We concluded there was a blockage (probably mechanic) and decide to land anyways. During Taxi-in, I played again with Valve sw in MAN mode and finally succeeded to open it. After landing, we checked the outflow valve and since it was a long flight (5h leg) in cold ISA, the ouflow valve surrounding was all frozen. It was indeed a blockage of the valve because it was freezed. The Heater Gasket for the ouflow valve was found to be inop.
-Some other QRH checklist, happening often like EQUIP cooling off...
Some skippers that were working here suggested we don't do sim anymore since we're having failures for every flight.

Last edited by FMC OVERHEAT; 4th Sep 2007 at 16:11.
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