<P> On September 12, 1980, Florida Commuter Airlines flight 65 crashed en route to Freeport, Bahamas killing all 34 passengers and crew . The cause was determined to be due in part to a malfunctioning air speed indicator caused by mud dauber nests that were improperly cleared from the aircraft's pitot tubes . </P> <P> On February 6, 1996, Birgenair Flight 301, a 757 jet flying from Puerto Plata in the Dominican Republic, crashed into the Atlantic Ocean . All 13 crew members and 176 passengers were killed . A key part of the accident was a blocked pitot tube, a component which measures outside air pressure through small tubes on the outside of the aircraft and displays this as the plane's speed . Although the tubes were never recovered from the ocean floor, it was discovered that the plane had been sitting on the tarmac for almost 3 weeks with the pitot tubes not covered as they should have been . Investigators believe a black and yellow mud dauber got into the tube and built its cylindrical nest inside, causing faulty air speed readings that were a large part of the crash . </P> <P> On April 10, 2015, about 1845 eastern daylight time, a Gulfstream Aerospace G - IV, N450KK, was substantially damaged during a cabin over-pressurization event over the Caribbean Sea while en route to Fort Lauderdale, Florida (FXE). An initial examination of the fuselage revealed that the outflow valve safety port, located on the outer fuselage, was completely plugged with a foreign material resembling dried dirt from a mud dauber . </P>

What type of spider makes a mud nest