• James Goodwin is to replace Gerald Greenwald as chairman and chief executive of United Airlines parent UAL from July. Goodwin succeeds to the senior posts after six months as the US giant's president and chief operating officer, although he has held various positions with the airline in a career spanning 32 years.

• Roy Grant has resigned as vice- president and chief financial officer of Iridium for what the satellite communications provider terms "personal reasons". Iridium has revealed that it has received a 60-day waiver from lenders on agreed financial covenants after suffering "slower than expected customer ramp-up and revenue generation".

• Aero engine manufacturer AlliedSignal has named James Taiclet, previously of Pratt & Whitney, as president of its Aerospace Services unit, responsible for increasingly important aftermarket activities.

• Wilbur Trafton has been confirmed as president of ILS International Launch Services, a joint venture between Lockheed Martin and Russia's Khrunichev space centre and space company Energia, which jointly markets the Atlas and Proton launchers.

• Delta Air Lines has appointed William Kline as a vice-president and "chief learning officer", tasked with rebuilding the carrier's training programmes.

• Jeffrey Smith has taken over as president of US avionics specialist Avtech.

• Mesa Air Group has made three additions to its accounting department, with James Player, formerly acting president of Kiwi International, joining as vice-president and corporate controller, Edward Viviano becoming director of accounting and James Castellano appointed as payroll manager. Mesa president and chief executive Jonathan Ornstein admits that the US regional is "behind the curve administratively".

• David Brant has been promoted to senior vice-president operations by business jet maker Galaxy Aerospace, taking charge of product support services.

Source: Flight International