US investigator's are assisting the UK's Air Accidents Investigation Branch with a second easyJet Boeing 737-700 upset, this one occurring the afternoon of 30 December on a jet departing London Luton Airport for Zurich.
The National Transportation Safety Board (NTSB) is also helping AAIB with a 12 January upset in which a Boeing 737-700 carrying four flight crew members experienced a "violent pitch down during flight". The two pilots and two observers were testing the aircraft as part of a hand-back procedure to the aircraft's leasing company. No one was injured.
In the 30 December incident, the NTSB says G-EZKB, flying as EZY7325, "experienced a rapid pitch up upon takeoff" from Luton. The upset may have been related to weather conditions -- NTSB says the aircraft had been deiced but was exposed to icing conditions later prior to takeoff. "The flight crew recovered the flight profile and no injuries or damage occurred," the safety agency adds.
easyJet confirms the incident but would not provide additional information. "Unfortunately at this stage we can not provide any additional details on the occurrence as we are collaborating with the AAIB," says the low-fare carrier.
The carrier did supply the correct date of the incident's occurrence. A preliminary NTSB report stated the pitch up event happened on 31 December.