Fire Protection

Question 1

Describe the indications of an engine fire warning.

Answer 1

Fire Warning
The indications of a ENGINE fire warning are:
• (ALL FIRES) The fire bell sounds
• (ALL FIRES) The Master WARNING lights illuminate
• (ALL FIRES) The forward discrete FIRE warning light illuminates
• (ENGINE FIRE) The engine fire switch LEFT or RIGHT fire warning light illuminates and the respective engine fire switch electrically unlocks
• (ENGINE FIRE) The engine FUEL CONTROL switch fire warning light illuminates.
• (ENGINE FIRE) The EICAS warning message L or R ENGINE FIRE displays

Question 2

Describe the indications of an APU fire warning

Answer 2

Fire Warning
The indications of an APU fire warning are:
• (ALL FIRES) The fire bell sounds
• (ALL FIRES) The Master WARNING lights illuminate
• (ALL FIRES) The forward discrete FIRE warning light illuminates
• (APU FIRE) The APU fire switch fire warning light illuminates and the APU fire switch electrically unlocks
• (APU FIRE) The EICAS warning message APU FIRE displays
• (APU FIRE) the APU automatically shuts down

Question 3

Describe the indications of a cargo fire warning

Answer 3

Fire Warning
The indications of a CARGO fire warning are:
• (ALL FIRES) The fire bell sounds
• (ALL FIRES) The Master WARNING lights illuminate
• (ALL FIRES) The forward discrete FIRE warning light illuminates
• (CARGO FIRE) the FWD or AFT cargo fire warning light illuminates
• (CARGO FIRE) the EICAS warning message FWD or AFT CARGO FIRE displays

Question 4

Recall the fire detection and extinguishing capabilities of the wheel wells.

Answer 4

Fire Warning
• The Main gear wheel well has fire detection capability but does not have extinguishing capability.
• The Nose gear wheel well has no detection or extinguishing capabilities.

The indications of a WHEEL WELL fire warning are:
• (ALL FIRES) The fire bell sounds
• (ALL FIRES) The Master WARNING lights illuminate
• (ALL FIRES) The forward discrete FIRE warning light illuminates
• (WHEEL WELL FIRE ) the WHL WELL FIRE warning light above the landing gear lever illuminates
• (WHEEL WELL FIRE) the EICAS warning message WHEEL WELL FIRE displays

Question 5

Recall the meaning of an illuminated SYS FAIL (system fail) FAIL P-RESET light.

Answer 5

• Indicates a failure of the detectors in one of the following systems:

• Engine Fire (2 loops and BOTH loops have failed)
• Engine Overheat (2 loops and BOTH loops have failed)
• APU Fire (2 loops and BOTH loops have failed)
• Cargo Fire (2 smoke detectors and BOTH detectors have failed)

System Fail Reset switch (FAIL P – RESET)
• Push – extinguishes the FAIL P-RESET light and allows monitoring of the remaining systems (The pilot will be directed to accomplish this via the QRH).

Question 6

Describe the meaning of an illuminated ENG BTL, APU BTL or CARGO FIRE BTL DISCH light.

Answer 6

• The extinguisher bottle has been discharged or has low pressure.

Question 7

Recall the function of the Engine or APU fire override switch.

Answer 7

• Unlocks the respective engine or APU fire switch.

Question 8

Describe the indications of a L/R ENG OVHT(Engine Overheat) caution.

Answer 8

• Indicates an engine overheat is detected.
The indications of a L/R ENG OVHT caution are:
• The caution beeper sounds.
• The Master CAUTION lights illuminate.
• The L/R ENG OVHT light illuminates
• The EICAS caution message L/R ENG OVHT