You will soon. Haha

All your base are belong to us!

supposedly it helps, so that is what we (are supposed to) do....

Neither do most of the guys I fly with. I start a clock when I start the APU and hit the bleed at 4 mins. I figure one minute to start and 3 for the bleed.

No the emphasis has been on waiting for a complete APU shutdown before turning off the ship batteries. They think not allowing time (2 min after AVAIL light goes out) can cause an erroneously low oil level in the sight gauge and then the mechanics over service it.

You must be me

That's been sop at NK as long as I've been there.

Thank you! I appreciate someone willing to answer me. At the company I follow, there are a couple of dedicated biddable seats/fleets that are all NEO, no CEO.

Yes, I'm aware of the APU being a big part of the problem, especially when it is overserviced with oil, and maybe in other scenarios.

However, I have also had events that were very clearly from CEO engines.

Makes sense as restarting the APU and letting it go through a complete shutdown before turning off the batteries can sometimes clear on erroneous APU LOW OIL message.

What is the theory behind waiting 3 mins to bleed the APU? I like the 4 min hack for starting.

Thanks guys, this has been helpful and still looking forward to more input.

The official answer it the 3 minutes allows the seals to reach “optimum performance” and should eliminate trace oil in the ducts…so less chance you smell something from oil getting into the system

Also makes sense.