Addresses The Issue Of Potential Overheating On Flight Deck And In Cabin The Federal Aviation Administration has issued an airworthiness directive that covers all Boeing 737-8, 737-9, and 737-8-200 models to address a circuit breaker issue that could lead to an air conditioning malfunction causing excessively high temperatures in the cabin and flight-deck. The directive requires revising the airplane flight manual within 30 days to provide flight crews with operating procedures if a certain circuit breaker trips, causing an air-conditioning malfunction. The FAA said the directive covers 2,119 airplanes worldwide, including 771 U.S.-registered airplanes.Boeing said it supports the directive and said the rule mandates guidance Boeing issued in January. “We are advancing an engineering solution to eliminate the possibility of this electrical fault,” the company told Reuters. Boeing attributed the root cause to a ground wire fault in the air-conditioning system. Boeing has notified flight crews about the steps they should take to respond to the specific electrical fault.
