John Thank you.
Add to my list:
Change in air density.
Wind sheer.
Polluting conditions, eg. ice.
Imbalance.
From steady flight to banked turn at same speed AoA increases. This is a fundamental and well documented fact.
A banked plane in a steady turn must use the same wing area to provide both the lift, ( same as in level flight if the plane of the same mass is not to go up or down) and the acceleration toward the centre (required to make the turn.) This amounts to more than just the lift alone. If the plane is flying at the same speed the extra lift can only come from an increased angle of attack.
A wing stalls at a particular angle of attack, regardless of speed. Thus a plane which stalls at 45 Knots in level flight may well stall at 60 knots in a steep turn or a pull out from a dive. This is the significance of the AoA not being independently linked to speed.
Take (for instance) a Chippie up to 5,000 ft. Fly str & level at cruising speed ( It is 40 yrs and I have forgotten exactly what that is,) crank on 60 deg of bank and haul the stick back into a steady turn so the plane nose neither skids out or bores in. In order to maintain speed you will have to increase power otherwise she will slow down because the wing is doing more work and causing more drag. The wing is operating at a higher AoA than it was in str & level and so causing more drag. That is why you need the extra power to maintain speed. The speed has not changed, the AoA has.