7ER Fire Protection Flashcards
(19 cards)
What are the flight deck indications of an engine fire?
EICAS warning ENGINE FIRE
Fire bell sounds
Master Warning illuminates
Discrete fire warning light illuminates
Engine fire handle illuminates and electrically unlocks
Engine fuel control switch illuminates
What does an illuminated discrete FIRE light indicate?
A fire has been detected in either an engine, the APU, a wheel well, or a cargo compartment
How can the fire bell be silenced?
Extinguishing the fire
Pushing either Master Warning switch
Pulling the affected fire handle
What are the flight deck indications of an APU fire?
“APU FIRE” EICAS warning
Fire bell sounds
Master Warning lights illuminate
Discrete FIRE warning light illuminates
APU FIRE switch light illuminates and switch unlocks
APU automatically shuts down
What are the flight deck indications of a cargo fire?
“FWD(AFT) CARGO FIRE” EICAS warning
Fire bell sounds
Master Warning lights illuminate
Discrete FIRE warning light illuminates
FWD and/or AFT cargo fire warning light(s) illuminate
What are the detecting and extinguishing capabilities of the wheel wells?
Nose gear: no detection or extinguishing capability
Main gear: detection capability but no extinguishing capability
What is the flight deck indication of a wheel well fire?
“WHEEL WELL FIRE” EICAS warning
Fire bell sounds
Master Warning lights illuminate
Discrete FIRE warning light illuminates
WHL WELL FIRE light illuminates
What is the meaning of a SYS FAIL P-RESET light on the FIRE/OVHT TEST panel?
One of the following systems has failed:
Engine fire detection
Engine overheat
APU fire
Cargo fire
[“FIRE/OVHT SYS” EICAS adv]
What is accomplished by pushing the SYS FAIL switch on the FIRE/OVHT TEST panel
Extinguishes the FAIL P-RESET light and enables monitoring of the remaining systems
What are the indications of a successful fire/overheat test?
Fire bell sounds intermittently
Both Master Warning lights illuminate
Discrete FIRE waning light illuminates
Fuel control switches illuminate
LEFT ENG, RIGHT ENG, APU fire handles illuminate
FWD and AFT cargo fire buttons illuminate
Left and right ENG OVHT lights illuminate
EICAS warnings for L/R ENG FIRE, APU FIRE, FWD/AFT CARGO FIRE, and caution for L/R ENG OVHT
What is the meaning of an ENG BTL, APU BTL, or CARGO FIRE BTL DISCH light?
The associated fire bottle has been discharged or has low pressure
[“ENG BTL 1(2)”, “APU BTL” or “APU BTL 1(2)”, or “CARGO BTL 1(2)” EICAS adv]
What is the function of the Engine or APU Fire Override switch?
Unlocks the respective fire handle should it fail to unlock electrically
What are the flight deck indications of an engine overheat?
“L(R) ENG OVHT” EICAS caution
Caution beeper sounds
Both Master Caution lights illuminate
Associated ENG OVHT light illuminates
How many APU fire bottles are there? How can one tell?
752: 1 or 2
753: 1
763: 2
Can tell by the number of bottle lights on the Cargo and APU Fire Panel
What does pulling the APU fire handle do?
Trips APU generator offline
Closes APU bleed valve
Closes APU fuel valve
Arms APU fire bottle(s)
What are the ground indications of an APU fire?
Horn on nose gear strut
Fire light on nose gear strut
What does pushing the APU shutdown switch on the nose gear strut do?
Closes APU fuel valve
Trips APU generator offline
Closes APU air supply valve
Shuts down the APU
Arms APU fire bottles
How would a single failed fire detection loop be indicated?
A status message on the EICAS STATUS page
How does the cargo fire extinguishing system on the 753 differ?
One cargo bottle switch for two bottles. Pressing it discharges one bottle immediately, then the second bottle later. “CARGO BTL 1” advisory appears right away, “CARGO BTL 2” will appear later
