PC-21 Lighting System Flashcards
What is the purpose of the external lighting system?
- Ensures that the aircraft is visible to other users of airports and airspace and can operate safety in any environmental light condition.
What is the purpose of the internal lighting system?
- Enables the pilot to read all the displays and instruments, locate controls and read paperwork including maps both with and without Night Vision Imaging System (NVIS).
When is the internal lighting system active?
All times for all lighting conditions.
Where are external lights controlled from?
Front cockpit
What external lights are there?
- Landing light
- Taxi light
- Recognition Lights
- Navigation Lights
- Anti-Collision
- Formation Lights
What is purpose of landing light? What are its vertical and horizontal angles?
- Angled down to illuminate the runway during final approach
- 12 degrees down
- 11 degrees horizontal.
What is the purpose of the taxi light? What are its angles?
- Illuminate the ground ahead of the A/C when taxiing
- 40 deg horizontal
- 13 deg vertical
When do landing and taxi lights operate? Why is this?
- When landing gear is extended
- Prevent overheating
Are the landing and taxi lights NVIS compatible ?
No
Where are the white recognition lights located? What are their purpose?
- Outer leading edge of each wing.
- Used to improve the visibility of the A/C, especially during low-level operations.
- Helps to avoid collisions and bird strikes
Are the recognition lights NVIS compatible?
No
Where are the anti-collision lights located and what is their purpose? Are they NVIS compatible?
- Two red and two white strobe lights (ANTI-COLL) in each wingtip.
- Used to indicate location of the aircraft in flight or on the ground
- Yes
Where are the navigation lights located? What do these enable? Are they NVIS friendly?
- Red light on the left wingtip
- Green light on the right wingtip
- White light on the right wing tip and on the left wing tip
- Enable direction of travel of the aircraft to be determined
- Yes NVIS friendly
Where are PC-21 formation lights and how many are there? Are they NVIS compatible?
- 12 formation lights, 6 on each side
- 2 cowling formation flights
- 2 wingtip formation lights
- 2 flap fairing formation lights
- 4 fuselage formation lights
- 2 vertical fin formation lights
- They give visual reference when flying in formation at night
- Yes NVIS compatible
What internal lights are there?
- Flood lights
- Map Lights
- Various instrument displays, panel backlights, indicators, captions and annunciators.
How many floodlights are there ? Are they NVIS compatible?
- 6 in each cockpit
- Allow the pilot to locate switches and control and strap into the seat in a dark environment.
- Yes
How many map lights are there? Are they NVIS compatible?
- 2 in each cockpit
- No
Are cockpit displays, panel backlights and indicators NVIS friendly?
Yes
What lighting system related cockpit panels and controls are there?
- External lighting panel in front cockpit only
- ARM panel
- Internal lighting panels
- Test controls on ENGINE panels.
How can pilot set brightness levels for NAV and Formation lights?
ARM panel
Which displays have their own brightness controls?
- HUD and HUDR
- Both UFCPs
- PFD, MFDs, SFD, EMD, FMS
Which displays have brightness controls?
- MFD
- PFD
- FMS
How is A/C external lighting system powered?
BATT BUS or from GEN 1 Bus
- Landing, taxi and NAV lights are powered directly from BATT BUS
- Recognition lights, ANTI-COLL lights, formation lights powered from GEN 1 Bus
How are internal lights powered?
- With exception of SFD all internal lighting powered from BATT BUS
How are the landing and taxi lights operated?
External lights panel
How are the recognition lights operated?
External lights panel
How are the white and red anti-coll lights operated?
External lights panel
How are the navigation lights opeated?
External lights panel
How is the brightness of the NAV lights operated?
ARM panel
How is the brightness of the formation lights controlled?
ARM panel
What occurs with internal lights when INSTRUCTOR is set to solo?
Internal lights are turned off.
How is backlighting on the control panels and instrument bezels controlled?
Rotary PANELS control in cockpit.
Where is HUD brightness rotary control?
Left edge of the UFCP in the front cockpit
How can the serviceability of cockpit indicators and attention getters be checked in the front cockpit?
- LAMPS TEST
2. FIRE TEST
What does LAMPS TEST pushbuttons do?
Serviceability of indicator lamps in that cockpit
What is FIRE TEST switch for?
- Test serviceability of fire test circuits
2. Test the attention getters in both cockpits
How are map lights turned on? How to control brightness?
- Turn on automatically when cylindrical units are rotated downwards and extinguish when pushed fully up again.
- Turn bottom part to control brightness
Are the TTI and clock and magnetic compass compatible for NVIS operation?
Yes
Will dimming be functional if CLDU fails?
No but there will be a night/day detent on the DISPLAYS knob.
What does an amber LANDING LIGHT, Attention Getter and single chine audio tone?
Landing gear has been retracted but landing light is still on
What switch is fixed to the DISPLAYS rotary control?
Day/night switch.
What is the CLDU used to control?
Brightness of displays, instruments and controls
