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What external warning is there for an APU fire?

  • Aural.
  • Red light.
  • Both aural and a red light.

Explanation from PART66Online

An APU fire while the aircraft is on the ground gives an external warning that combines an aural horn with a red light at the ground-servicing/APU panel, so personnel around the aircraft are alerted as well as the flight deck. A single indication (aural only or light only) would be incomplete; both are provided for the external APU fire warning.

M

matth asked · 9 Mar 2012

Never seen RED light outside Aircraft. AURAL sign OK

Community Comments (3)

P
PART66Online 12 Mar 2012
Hey!

Do you have any reference? I can't find anything about that.
T
TURIN 16 Mar 2012
B777 NOSE LANDING GEAR. RED WARNING LIGHT AND AURAL WARNING IF APU FIRE DETECTED.
P
PART66Online 16 Mar 2012
Hello Turin!

Thank you. :)

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