2016 PC Guide - Fire System Flashcards
On an originating flight, which Crew Member is responsible for testing the Overheat/Fire Warning System.
Testing the Fire/Overheat Warning System is accomplished by both the Captain and the First Officer
Shortly after arriving at your aircraft the First Officer informs you that the wheel well fire light will not test. What ma be the problem?
Wheel well fire detection functions using only AC electrical power. If the FIRE/OVHT is performed using only battery power, the wheel well fire light will not illuminate. If AC power is online, the wheel well fire detection system is operative.
What would your actions be to handle a Wheel Well Fire in flight?
Comply with the QRH MATM items on the cover of the QRH and the WHEEL WELL FIRE checklist. Extend the gear and land at the nearest suitable airport.
With a wheel well fire, after following the QRH assuming the fire is extinguished, when will the wheel well fire light extinguish?
When the temperature of the detector has decreased below the onset temperature.
You are ding a last minute swap into a cold Classic aircraft. After powering up the aircraft how long must you wait before testing the cargo fire detection system and what must you be cautious about?
The system requires up to 2.5 minutes to complete the power-up self-test so it is not reliable until then. You must use extreme care when accomplishing this test. If you mistakenly push the MX TEST button or the MX SETUP switch you could cause damage to the system and possibly render the system inop.
What are some differences between the Classic and the non-ETOPS NextGen cargo fire suppression system?
The control panels are in different places, with the CL positioned on the CAs overhead panel and the NG on the center console.
The primary system differences are that the CL provides temperature and smoke detection and has two fire bottles. When selected, the bottle 1 will fully discharge with the BTL 1 DISCH light blinking until the bottle is empty, then illuminate steady. After 15 minutes, bottle 2 will slowly discharge over 45 minutes with the BTL 2 DISCH light blinking until it is fully discharged, and then remains steady.
The NG provides only smoke detection and only has one bottle. When the discharge button is pushed, the bottle will fully discharge and the DISCH light will illuminate (may take up to 30 secs). Both systems provide 60 minutes of fire suppression when functioning properly.
How do you discharge the Engine / APU Fire extinguisher?
Rotate the FIRE handle to the stop and hold for 1 second.
During engine shutdown you see a Ramp Agent paint to your #2 engine with one wand, and with the other wand making a fanning motion behind his back.
What does this signal mean? How would you handle the situation?
The signal is for an engine fire, and with no flight deck indication it is likely a tailpipe fire. During shutdown, call for Engine Tailpipe Fire checklist. If the tailpipe fire occurs during engine start, perform the Aborted Engine Starts Checklist then refer to the Engine Tailpipe Fire Checklist.
Engine tailpipe fires typically are associated with engine shutdown, caused by a fuel spray nozzle which discharges fuel onto the hot engine tailpipe section, although they can occur during other phases of ground operations.
