System Failures
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Hi!
Looking at the list of possible failures and speaking specifically about the engine, I couldn't find issues like 'L/R PRIMARY INJECTORS' or 'L/R SECONDARY INJECTORS' in the P&W maintenance manual, not even in specific troubleshooting sections. Another failure like 'L/R ENGINE SURGE' — in this case, I'm not sure if that's an ambiguous term related to 'COMPRESSOR STALL.' Are they the same thing?
Anyway, what is the source of these failures? Because I couldn't find them in the P&W official maintenance manuals.
Thanks!
Alan / From Brazil.
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There is no "source" for these failures other than my own imagination/ambition. The primary and secondary injectors are the nozzles that deliver fuel to the combustion section of the engine, which may become inoperative due to a fuel control malfunction, or a clogged fuel distribution line. Engine surging is a generic failure for turboprop engines that can result from various compressor/fuel related malfunctions, or internal damage.
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There is no "source" for these failures other than my own imagination/ambition. The primary and secondary injectors are the nozzles that deliver fuel to the combustion section of the engine, which may become inoperative due to a fuel control malfunction, or a clogged fuel distribution line. Engine surging is a generic failure for turboprop engines that can result from various compressor/fuel related malfunctions, or internal damage.
@Black-Square Thank you for your response. I had assumed that all these failures were indeed taken from the P&W manuals, given the complexity and realism of BS products. That's why I went to check the real manuals, and I didn't find them.
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@Black-Square I found a possible bug when failing both primary and secondary injectors. The engine was expected to shut down, but it keeps running even with no fuel injection. Is that really possible?
Primary and Secondary Injectors - Video
In this other scenario, when triggering R ENG DRIVEN FUEL PUMP, it applies the failure to the left-side engine (instead of the right one).
R ENG DRIVEN FUEL PUMP - Video
In this other case, when triggering the 'COLUMN PUSHER MOTOR' and 'COLUMN PUSHER CLUTCH' failures, the automatic stall protection still activates.
COLUMM PUSHER MOTOR AND CLUTCH - Video
I'm just trying to help.
Best regards!
Alan / From Brazil
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On the first point, you're correct, the engine won't fail completely. You can consider this either a severe clog of both fuel lines, or another type of "acceleration schedule" failure on the part of the FCU.
The engine driven fuel pump failures are coded correctly, but it's possible I fixed this recently and just haven't published it in an update yet.
It's hard to tell from your video, did the column pusher really activate, driving the yoke into the panel? Looking at the code, that is definitely dependent on both circuits being energized.
