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The U.S. Air Force is investigating multiple instances of scrapes on aircraft caused during mid-air refueling performed by Boeing Co.’s new KC-46 tanker.
So far, the damage caused by the fuel probe that connects the tanker with other aircraft has been minor, according to a service statement and program documents. But it’s worrying enough that the Air Force issued a top-level “Category One” deficiency report on May 1 after it discovered the damage during post-test flight analysis of video and data.
originally posted by: Zaphod58
Another issue with the KC-46 is the autopilot disconnect warning horn. Under a Part 25 rule amendment in 2006, the aircraft must have a "distinct" aural and visual warning for all crew members when the autopilot is disconnected. On all models of Boeing aircraft, except the 787, if you push the autopilot disconnect twice within 0.3 seconds it silences the horn. Boeing has filed for an exemption, but the FAA is still reviewing it.