Can you, Dozy, or anyone, explain to me why it takes 17 seconds for the pilot to make a control input during the A330/A340 altitude excursion that is of such interest in discussing the various features of the A330 flight control system?
You could ask this guy:
On the 26th of December 2012, Norwegian Air Shuttle with flight number NAX5630 serviced a regular passenger flight from Helsinki airport Vantaa (EFHK) to Kittilä airport (EFKT) in Finland. The aircraft in use was a Boeing 737-800 delivered new to Norwegian Air Shuttle in 2011.
Enroute the flight was uneventful and the aircraft was established on the approach to runway 34. When the aircraft passed approximately 3,250 ft on the instrument approach (ILS) with flaps 5 and autopilot engaged, the aircraft started an unintentional steep climb with full engine power. The aircraft climbed approximately 1,500 ft and the airspeed dropped so that the aircraft came close to a stall. However the pilots managed to regain control of the aircraft. Some later a new approach was executed and an uneventful landing was made in Kittilä. After the incident, the aircraft has been flown on a test without any remarks.
The Accident Investigation Board Norway has access to the aircraft digital flight data recorder and some aircraft components. In corporation with the US National Transportation Safety Board (NTSB), Boeing and the airline, it is initiated an ongoing investigation as a result of the incident.