No power until 600'. Not permitted under BA's ops. You have to be in the stable configuration normally by 1000' but ALWAYS at 500'. We have a call at 500 with a reply "stable" or "Go Around".
The thing is, if "Go Around" power isn't available (as seems to be the case here) then the book goes out the window, and it's down to seat of pants flying the thing.
Stable at 1000' - Check!
Stable at 500' - nope! Throttles not responding!
Hang on to your hats!
