How many halons are installed on the Boeing 787 aircraft?

How many halons are installed on the Boeing 787 aircraft?

• A. Six
• B. Five
• C. Four
• D. Seven

Answer: (A)

The number is six because the 787’s fixed fire protection system places extinguishing bottles in multiple zones for reliable coverage. There are two Halon bottles in each engine nacelle, giving four bottles to protect both engines. The remaining two bottles cover other fixed fire zones on the airplane, such as the APU bay and cargo compartments. This distribution ensures each critical area has its own extinguishing capability, totaling six bottles.

The number is six because the 787’s fixed fire protection system places extinguishing bottles in multiple zones for reliable coverage. There are two Halon bottles in each engine nacelle, giving four bottles to protect both engines. The remaining two bottles cover other fixed fire zones on the airplane, such as the APU bay and cargo compartments. This distribution ensures each critical area has its own extinguishing capability, totaling six bottles.