Smoke billowed from plane exhaust at an airport in Afghanistan. Dramatic footage shows a Boeing 737-500 operated by flag carrier Ariana Afghan Airlines emitting thick smoke from the auxiliary ...

Last week, birds managed to ground one of freight carrier TNT's 737s at Istanbul’s Ataturk airport. The 737’s pilots started up the auxiliary power unit (APU) before departing for Liege in ...

Honeywell International HON has introduced an upgrade for its 131-9B auxiliary power unit (APU) for Boeing 737 aircraft to reduce fuel consumption and carbon dioxide emissions.The new High ...

Honeywell's (HON) new HEM upgrade for Boeing 737 aircraft APU is expected to provide fuel savings, lower carbon dioxide emissions and maintenance costs for airlines.