737 NG Ground Run Max N1 before skidding.
If post maintenance work requires a 100% N1 ground run, can it be done against the brakes or will an empty 737NG begin to skid before 100%N1? Obviously it depends on surface friction and weight but let's assume the surface is dry/Good and that the machine is empty due to still being under maintenance.
I know the answer is in excess of 70% because the similar, but unrelated, Supplementary Procedure for preventing ice build up on the ground requires, if possible, a MINIMUM of 70%.
And are there any other considerations like compressor stall possible? I know that the surface is important (Google "NL B734 Damaged During Engine Run Up" which gives a link to airliners.net...........Shaheen ended up with a patio on their stabiliser!)
Are there any engineers out there that have been trained for ground runs that can help with this query?
The question arises following a tech issue at an outstation when I had to do a full rated thrust ground run after maintenance work.