brianchang83

Turns out you're right Cyanide, I solved the problem by purchasing FSUIPC. Looks like it's a known FS9/FSX bug. In short, the default FS battery setting ignores/overrides the payware aircraft's power setting under certain (unknown) conditions and fizzles out in 30 minutes which knocks out the aircraft's radio and lights. Incredibly, this is the case even when the aircraft's APU/external power/engines are running with electrical buses properly configured. Engines continue to run or can even be started and all the cockpit displays function properly - only interior/exterior lights and radio are knocked out. Registered version of FSUIPC's battery life setting (under "Miscellaneous" tab > "Additional facilities" section > click on "Extend battery life (indefinitely if value = 0, else by factor)" and set box to "0") completely solves this problem. Previous threads on this topic: http://forum.avsim.net/topic/213205-fsuipc-registration-required-battery-power-out-fast/ http://forum.avsim.net/topic/360732-aircraft-goes-dark-after-sitting-for-awhile/ In my case, changing the aircraft cfg's "electric_always_available=0" under [electrical] section to ""electric_always_available=1" did not solve the problem. I have no idea what the "certain conditions" are because my posky+PSS 777 merge (sorry Andy, typo in my previous post) worked fine for many years and my PMDG 747 still hasn't experienced this issue. I even went through the painful process of reinstalling my FS9 to see if it was caused by a corrupt file but to no avail. One pattern seems to be that the problem occurs if I start the flight in areas with add-on scenery vs default scenery but I could be wrong. Anyways, thanks for all your suggestions and replies!

Nothing new for FS9 but I did run the C drive disk defragmentation recently.

Yeah of course. It happens even during mid flight. Avionics and engines etc all run fine but 30 mins into starting the sim, lights go out and even though there's ATC chatter, I can't respond to it anymore. Once again, happens only with posky aircraft. Thanks - but I run the posky 777 with PPS panel merge so this happens even with the APU and the external power running when on the ground. I've had no problem for years but this started happening from a couple days ago so I'm assuming that a certain file has become corrupt?

I have an error occurring only with Posky aircraft (737/777) - ATC stops working and interior/exterior lights fail 30-35 minutes after starting the sim. This is the case whether the plane is in the air or on the ground parked at the gate with engines on or off. The error doesn't occur with any other aircraft from PMDG/CLS etc so I tried replacing relevant posky files in the Effects directory but to no avail. I even tried reinstalling FS9's sound file and editvoicepack but the problem persists. Anyone know how I can fix this problem? Thanks!