94AWI21-205 — Aircraft Hot Brakes

94AWI21-205 governs safe handling and inspection procedures for aircraft subjected to wheel or brake fires and overheating.

Search 94AWI21-205

  • Publication number: 94AWI21-205
  • Title: AIRCRAFT HOT BRAKES
  • Date: 2012-10-25

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It covers responsibilities for responding to hot brake conditions and procedures for evacuation, cooling, towing, notification, and inspection. It requires personnel to maintain safety distances, coordinate with the Dobbins ARB Fire Department, and follow specified technical orders for inspections.

Applies to: This instruction implements Air Force Policy Directive (AFPD) 21-1, Air and Space Maintenance.

Topics covered

  • Aircraft hot brakes
  • Wheel and brake fires
  • Hot brake evacuation distances
  • Aircraft cooling and towing
  • Fuse plug melting temperatures
  • Hot brake inspection requirements

Questions and answers

How far away must personnel and equipment remain from hot brakes?

Equipment and personnel should be at least 300 feet (600 feet if munitions/pyrotechnics on board) from either side of wheel as a safety precaution against possible explosive failure of the tire or wheel. (paragraph 1)

What must happen before an overheated aircraft is towed or taxied?

Overheated wheels and brakes will be cooled before towing or taxiing aircraft. (paragraph 1)

How long should personnel monitor the wheel and tire after suspected hot brakes are found?

Notify the MOC providing aircraft location, munitions and fuel on board and monitor the affected aircraft wheel and tire for 30 minutes. (paragraph 2)

At what temperature do the fuse plugs melt?

Allow time for heat to build up to its maximum for melting fuse plugs which melt at 390 degrees Fahrenheit. (paragraph 2)

What happens if a hot brake tire deflates?

Do not tow the aircraft and remain clear of the aircraft and adjacent aircraft until the Dobbins ARB Fire Department terminates emergency. (paragraph 2)

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