So what does he mean by a leak can be confirmed on the bleed air duct pressure indicator?
Perhaps the writer expects you to check the duct pressure before you carry out the NNC?
How does leak on left side make it any more serious than right side. Am I correct to say that it is more serious because of more ducting than right thus more chances of airframe damage?
I'm just guessing at what he's thinking, but..
Most of the APU Bleed duct is inside the cabin (I mean in the pressurised, mostly cargo area). Pack bay and wing ducts are outside the pressurised area.
Don't worry, you're not the only one having trouble with this subject :P
http://www.pprune.org/tech-log/55908...737-800-a.html
Cheers
NSEU