Tatsuno B787 Type Rating Oral Questions Flashcards
To pass the B787 oral examination
Differences 787/767?
Electrical
- Increased Power Sources
- VFSG (Weight Saving)
- Dynamically managed and redundunt
- PMG/PMA
- RAT
- LMPDS - PECS
- Some tradional AIR/HYD systems now Electric
Anti-Ice Improvements
- Auto Ice detection
Hydraulics
- Smaller lines (5000psi)
- Fewer Items
Air system
- 4 Electric Cabin Air Compressors (CAC)
- 2 Air Conditioning Packs
- PECS (Liquid Cooling)
- ALT Vent System (Packs INOP)
- Humidification System
- Pressurization: 6000ft
ENG Bleed Air
- Engin core/Cowl Anti Ice
- SAS
Flight Controls (FBW)
- Fly-By-Wire
- 3 PMG’s (Independant) & Backup Power
- 4 ACE’s
- 3 PFC
- 3 Modes: Normal, Secondary, Direct
- Flap/Slat Modes: Primary, Secondary, Alternate
- Envelope protections
- Auto functions
Engine (RR)
- 3-rotor Axial flow turbofan of high compression & bypass ratio (Prevents comp stall, shortens total length of engine)
- N1, N2, N3
- Accessory gearbox on N2, no load on N3, N3. can retain higher rotation in idle
- Lower Min Idle: Improved efficiency, fuel consuption & brake wear
- EEC: 2 Independant PMA’s
- TPR (Turbofan Power Ratio) N1/N3
- MAx time at Takeoff thrust: 2ENG 5mins, 1ENG 10mins
- Engine Intermix: Exactly matches ENG PWR Output
- SAS: N2 cooling
- TAP
- TAMS
- Automatic Starting (Both ENG) by Elecrical power
APU
- Automatic Functions
Flight Instruments
- Large MFD Displays
- CCS
- HUD
- EFB
- ECL
- Synoptic Displays
Flight Management & Communication
- 3 FMC’s
- TCP/ACP
- Alternate NAV
- IAN APPR
- Datalink improved
Fuel
- Balancing System
- Jettison: To Remain Function
Landing Gear:
- Electric Brakes
- Taxi Brake Release
- Tire Pressure
- Early Doors Funtion (Time/Perf)
- Semi-levered Gear
PAX OXY:
- Gaseous O2
- 12mins/60mins
- Masks Autodrop
ELEC system differences 787/767?
Additonal components powered by ELEC for 787?
787 electrical system generates, distributes and manages electrical power.
System operation is automatic & electrical loads are dynamically managed. Auto cycles loads for efficient use of airplane power.
Primarily uses 115Vac &28Vdc power, with a limited number of systems optimized with 235Vac
Additional 787 specific:
* Engine Start
* Pressurization
* Wing Ice Protection
* Stabilizer Trim
* Wheel brake systems
- ECL
- ECB’s (CBIC)
Power Sources:
* 4 VFSG ENG (235Vac / 250KVA = 1000KVA)
* 2 VFSG APU (235VAC / 225KVA = 450KVA)
- Allows for weight saving
* 3 EXT AC PWR receptacles
* RAT
* MAIN BATT (32V)
* APU BATT (32V)
* 3 PMG’s (Flight Controls)
* 2 PMA’s (EEC)
ENG STR/GEN
* Both auto engaged for ENG start
* Each S/Gpwers its respecive bus (L1/2/R1/2)
* Gen Drive DISC
LARGE MOTOR POWER DISTRIBUTION SYSTEM
* Large motor loads are required to be energized by motor controllers (Due to Variable Frequency Power), which conditon power for use.
* AFT E/E bay
* HYD Pumps, CAC’s, RAm Fans, ENG/APU Start, C FP, NGS,
PECS (Power Electronics Cooling System)
Liquid Cooling System
* Dissapates heat created by motor controllers
* Failure of 1PECS causes PACK INOP -Descent may be required
BPCU (Bus Power Control Untit) x2
* Management & Protection
* In the event of failure a second BPCU assumes functions
MODE:
* Towing Power Mode
* On-Ground Battery Only Mode
* Ground Handling Mode
* Ground Service Mode
* External Power on Mode
* In-Air RAT Only Mode (STBY PWR)
* In-Air Batt Only Mode (STBT PWR)
Load Inhibit & Load Shedding
What component is ENG Bleed air used for?
Bleed air is only used for engine core and inlet cowl anti-ice operations.
SAS provides cooling & sealing airflow to the intermediate pressure turbine, which is controlled by the EEC
AOM.2.40.1
Is there any other way to start the engines other than Autostart?
No, the engines can only be started using the Autostart system.
AOM.7.20.17
During ENG start ground crew ask you to shut down the engine. What would you do?
- Aborted Eng Start Memory item: Fuel Control Switch … CUT OFF followed by NNC
- Communicate with ground crew
- Fire indication from ground crew? Check whether tailpipe fire or other engine fire.
- Tailpipe Fire / Fire Eng on Ground checklist
QRH
Explain Fly-by-Wire?
Fly-by-wire (FBW) is a flight control system in which the mechanical linkages from traditional manual flight controls, such as control columns, control wheels, and rudder pedals, are replaced by an electronic interface. Instead of mechanical linkages connecting the pilot’s inputs directly to the control surfaces, the pilot’s commands are converted into electronic signals, which are then processed by a computerized flight control system. This system, in turn, sends electronic signals to actuators that control the aircraft’s control surfaces, such as ailerons, elevators, and rudders.
Key features of fly-by-wire systems include:
- Electronic Signals: Pilot inputs are translated into electrical signals by sensors, and these signals are then sent to a computer.
- Computer Processing: The flight control computer processes the pilot’s input along with other data, such as aircraft speed, altitude, and configuration.
- Actuator Response: The computer then sends signals to actuators, which move the control surfaces to execute the desired maneuver or maintain stability.
FCTM1.44~1.46, AOM9.20.1
What are the advantages of the Fly by Wire system?
Advantages:
* Reduce Pilot Workload
* Provide enhanced handling qualities |& control
* High Redundancy
* Reduced weight (No cables/linkages)
* Flexibility in design with built In protections
* Easier for maintenance & faultfinding
* Turbulence suppression
* Decreases drag/Optimized wing camber(Cruiseflaps)~improving efficiency/saving cost
* Optimizes Trim settings
AOM9.20
What are the disadvantages of the Fly by Wire system?
Disadvantages:
* Heavy Reliance on Electrical power
* Catastrophic electrical fault could render it unusable
* No Autopilot if not in normal mode
* Highly complex, receives input from multiple sources
AOM9.20
What is the first thing to check once the PM gets on board?
(Preliminary preflight procedure)
Log & Documents
AOM NP.31.1
Emergency equipment in the flight deck?
S.S.F.F.F.C.L.M
- Smoke hood
- Signal kit
- Fire extinguisher
- Fire resistant glove
- Flash light
- Crash axe
- Life Vests
- Megaphone (-10)
- Overhead emergency exit & Decent Devices
AOM NP.31.1
What is the Preliminary Preflight Procedure for PM?
- Log & Documents …. Checked
- Flight Deck Access system operational Check… Perform
- Emergency Equipment … Check & stowed
- Flight Deck Overhead Door … Closed & Latched
- Emergency Descent devices …. Stowed
- Headsets … Min 4
- Gear Pins …. 5 Pins stowed
- Emergency Evac signal & CAB INTPHN … Check
- IRS Selectors …. OFF 30 sec’s, ON (ON BAT blank)
- CREW OXY LOW msg blank
- STATUS Display … Check
- OXY press: > 860/1250
- HYD QTY: sufficient no RF
- ENG oil QTY > 16QRT
- EICAS: Expected Msgs (2-6-3)
AOM NP.31.1
What items are checked in an originating flight only?
First flight of day Domestic. 3hour > groundstay for international.
- FLT Deck Door Access SYS
- EMER EVAC Signal & CAB INTPHN
- Crew OXY Mask Mic test
What is the 180° turn radius of the B787?
(All)
- -8: 47.3m
- -9: 52.6m
- -10: 58.1
AOR PT1
What is the Minimum 180° turn radius of the B787?
(All)
- -8: 42.4m
- -9: 47.2m
- -10: 52.7m
AOR PT1
What is the Pivot 180° turn radius of the B787?
(All)
- -8: 34.6m
- -9: 37.7m
- -10: 40.7m
(No alternative means, Emergency only, post check of RWY & tires)
AOR PT1
Explain Minimum turning procedure?
- Apply brakes, stop the aircraft, set thrust idle
- Turn tiller max, in direction of turn
- Releasebrakes, speed 5~10kts, applying thrust on opposite engine
- Passing max width, align aircraft with runway using tiller
AOR PT.1.9
Power source of brake system?
- 28Vdc is the primary power source
- Main battery provides backup power
4 electrical brake power supply units regulate power for the exclusve use of the airplane brake system. Each of the 4 power supplies receive two seperate 28Vdc inputs. One from the 28Vdc system, and one from the main battery.
Parking Brake: Clamped in position by EBA’s. No active power required to maintain clamping force.
AOM6.20.9 / AOM14.20.4
Unique brake feature on the ground?
(And Speed Range?)
With wheel speeds <30kts the brake control system applies one-half of the brakes on each main landing gear.
Sequenced through alternating wheel pairs during each brake application.
- Extends service life
- Reduces brake sensitivity
(Taxi Break Release)
AOM14.20.6
Pro’s & Cons of ECL?
Merits
* Better situational awareness
* Reduced Errors
* Efficient - Workload managemnet easier
* Sequenced (GA)
* Prioritises: though aircraft logic
* Closed loop items monitored by aircraft
Demerits
* Hidden checklists
* Over reliance on automated system
* Both Pilots heads down
ECL not required for dispatch: Paper checklist must be avaiale in flight deck.
AOM10.60.11
When would you use the paper checklist??
- Evacuation
- Engine Fire on ground (Quicker to save time)
- Dual Engine Failure
- When ECL U/S
OPT indication when a grooved RWY is temporarily non-grooved by NOTAM?
“No Credit” should be selectedin Grooved Runway Accountability on NOTAMS Page
* ‘No credit for grooved runway’ displayed
* Notified via Company NOTAM
* Amber Bar displayed under NOTAM soft key
AOR 10.2.25
When using ATM, what can you do to provide extra safety margine?
- Enter a negative value into the ATM box
AOM 10.80.28
Effect of 1° of assumed temp to length/weight?
1° of assumed temp corresponds to a take off weight allowance of 3,000lbs which is equivalent to about ±100ft in terms of stop margin.
AOR PR.10.3
Max X-WIND components for 787-8 for DRY [RWYCC6]?
- T/O: 40kt
- LNG: 37kt
AOM L4.1
Max X-WIND components for 787-9 for DRY [RWYCC6]?
- T/O: 33kt
- LNG: 40kt
AOM L4.1
Max X-WIND components for 787-10 for DRY [RWYCC6]?
- T/O: 37kt
- LNG: 35kt
AOM L4.1
Max X-WIND component for 787 WET (Grooved & Non grooved)
[RWYCC 5]
(All)
25kt
AOM L4.1 / AOMB.2022-08
Max X-WIND component for 787 **
[RWYCC4/3]**?
(All)
20kt (15kt*)
*RWY < 2500m
AOM L4.1
Max X-WIND component for 787 FLOODED [RWYCC2]:
15(10*)kt
*RWY < 2500m
AOM L4.1
Max X-WIND component for 787 [RWYCC1]:
10kt
AOM L4.1