Fire Protection Flashcards
What fire protection do the cargo compartments have?
- The forward and aft cargo compartments each have smoke detectors in a dual loop configuration. Normally, both detection loops must sense smoke to cause an alert.
- ETOPS aircraft have a total fire suppression time of 195 minutes. This includes 180 minutes to land at an airport plus an additional 15 minutes.
- Non-ETOPS aircraft provide for a 60-minute diversion and a 15-minute reserve totaling 75 minutes of fire suppression.
FRM B737NG/MAX 8.2.5
Within how many minutes must you land after initial discharge of the cargo bay fire suppression system?
- 60 Minutes
- (MAX8E/ -800E) – 180 Minutes
Note: E indicates ETOPS equipped aircraft.
AOM Limitations
During a Cargo Fire Test, the Detector Fault light will illuminate under what condition?
If one or more detectors in the loop has failed.
FRM B737NG/MAX 8.2.8.1
With a cargo fire, what indications wouldyou expect to see after discharging the bottle?
After initial indication of a cargo compartment fire and discharging the bottle, the FWD/AFT cargo fire warning light(s) can:
* Extenguish
* Remain illuminated or,
* re-illumate over the remainder of the flight
FRM 8.2.5.2, AOM 16.8.2
During cruise, the Cargo Fire (FWD/ AFT) Warning light illuminates Red, Master Fire Warn lights illuminate and the fire warning bell sounds. What condition exists?
- At least one detector in each loop detects smoke
- With power failed in one loop, at least one detector on the remaining loop detects smoke
FRM B737NG/MAX 8.2.8
What indications will you receive that a cargo fire has been extinguished?
There is no indication in the cockpit.
AOM 5.5.16
On the ground during engine start and after the pushback Crew has been cleared off, they give you hand signals for an Engine Fire with no fire indications on the Flightdeck. What may be the actual condition?
You may have an Engine Tailpipe Fire.
QRH NG/MAX 8.14
What occurs if one of the two engine fire detection loops fail with the OVHT DET switch in NORMAL?
If one loop fails with the OVHT DET switch in NORMAL, that loop is automatically deselected and the remaining loop functions as a single loop detector. There is no flight deck indication of single loop failure.
FRM B737NG/MAX 8.2.2.1
What powers the engine overheat and fire detection? Extinguishing?
- Engine overheat and fire detection powered by the battery bus.
- Engine fire extinguishing powered by the hot battery bus.
FRM B737NG/MAX 8.2.2
When pressing the OVHT DET switch you notice the FAULT Light is illuminated. What may be the problem and how do you determine in which engine the fault occurred?
If the FAULT light illuminates, a detection loop is inoperative. The related ENGINE FIRE WARNING switch and ENG OVERHEAT light do not illuminate.
AOM 16.8.1
During a Cargo Fire Detection System Test, how can you determine if a loop is inoperative?
If a cargo fire warning light does not illuminate and the DETECTOR FAULT light does illuminate, a detection loop is inoperative.
AOM 16.8.2
What consideration, with regards to the landing gear, should be taken during execution of the Wheel Well Fire checklist in QRH NNC 8 Fire Protection following a wheel well fire warning?
Landing gear speed limitations should be observed during this checklist.
AOM 5.6.1, QRH NG 8.18/ QRH MAX 8.2
In an ETOPS aircraft with an ARMED Cargo Fire switch what occurs when pushing the Cargo Fire Discharge switch?
The first extinguisher bottle discharges into the selected compartment and the timer set to discharge the second extinguisher bottle with a reduced metered flow.
MAX FRM 8.1.5, 8.2.5.3/ NG FRM 8.1.4, 8.2.5.3
