YB-747 ORAL QUESTION BANK &
REVIEW (PC) COMPLETE DETAILED
CASE STUDY
What is the wingspan of the 400F / -8 - 213 feet (64.9 meters)
224.5 feet (68.4 meters)
What is the minimum width of pavement for a 180 degree turn - With body gear steering 153 feet (46.6
meters)
Without body gear steering 172 feet (52.4 meters)
With the Emergency (EMER) Lights Switch ARMED, when do the emergency lights illuminate - If airplane
electrical power (DC) fails or is turned off
What happens when you rotate the Oxygen Mask Emergency / Test selector to emergency - Supplies
100% oxygen under positive pressure at all cabin altitudes, and protects against smoke and harmful
vapors
What is the electrical power source for the emergency lighting system, and for what duration - Remote
batteries for 15 minutes
Where is the portable ELT located, on the freighter? - Upper deck lavatory exterior wall.
Give examples of Immediate Action Items on the Quick Reference Checklist - 1. CABIN ALTITUDE - Rapid
Depressurization
2. ENG 1,2,3,4 AUTOSTART - Aborted Engine Start
3. Engine Limit or Surge or Stall
4. IAS DISAGREE - Airpseed Unreliable
5. FIRE ENG 1,2,3,4 - Engine Severe Damage or Separation
,6. Multiple Engine Flameout or Stall
What is the maximum Takeoff and Landing Tailwind component for the -400F/ 08 and LCF? - 15 knots
(LCF - 10 KTS)
What is the maximum headwind component for autoland - 25 knots
What are maximum and minimum glideslope angles for ILS autoland - 3.25 degrees (max)
2.5 degrees (min)
What VNAV limitation applies to level - off within 2,000 feet after changing the altimeter setting from
QNE to QNH, or QNH to QNE - Do not use VNAV for level - off if the QNH is less than 29.70in / 1006 hPa
Without LAND 2 or LAND 3 annunciation, the autopilot must not remain engaged below what RA
altitude - 100 feet RA
What is turbulent air penetration speed - 400F and -8 - 290 to .82 to 0.85 Mach, whichever is
lower.
310 KTS / 0.83
What is the maximum altitude for flap extension - 20,000 feet
Are operations allowed when the reported braking action is NIL? - No
What is maximum landing gross weight 400F - 302,092 kilograms
What is the difference in the Basic Operating Weight (BOW) on the Operational Flight Plan (OFP) and the
Sable Loadsheet? Is there a difference between the Sable and OFp final calculated ZFW and TOGW? -
BOW OFP = Basic Operating Weight includes weight of all cokcpit and cabin crew
, BOW Sable = Basic Operating Weight Aircraft basic weight + 2 crew (Only includes 2 pilots not whole
upperdeck occupancy.)
Which manual would you reference to if the Aircraft ZFW was greater than 276,691 and why? - Weight
and Balance Manual
Comply with decreased maximum weight limits when using Variable Zero Fuel Weight
What BTMS number on the GEAR synoptic display will cause an EICAS advisory message of BRAKE TEMP
- 5 or more
B747 Oral Question Bank Review - Engines -
What does the EEC use as the controlling parameter for the GE engines - N1
What protection features are provided in the EEC Normal mode - Thrust limiting
Maintains constant thrust
Over-speed protection
What occurs in the auto-throttle system when any EEC control is switched to alternate mode - The auto-
throttles disconnect, but can be.reconnected when all EEC's have been switched to alternate mode
What EEC normal mode protection feature is not available in EEC Alternate mode - Thrust limiting at
maximum N1
(Maximum thrust can be achieved prior to thrust lever position at full forward)
When does the EEC select approach idle - Flaps in a landing position
REVIEW (PC) COMPLETE DETAILED
CASE STUDY
What is the wingspan of the 400F / -8 - 213 feet (64.9 meters)
224.5 feet (68.4 meters)
What is the minimum width of pavement for a 180 degree turn - With body gear steering 153 feet (46.6
meters)
Without body gear steering 172 feet (52.4 meters)
With the Emergency (EMER) Lights Switch ARMED, when do the emergency lights illuminate - If airplane
electrical power (DC) fails or is turned off
What happens when you rotate the Oxygen Mask Emergency / Test selector to emergency - Supplies
100% oxygen under positive pressure at all cabin altitudes, and protects against smoke and harmful
vapors
What is the electrical power source for the emergency lighting system, and for what duration - Remote
batteries for 15 minutes
Where is the portable ELT located, on the freighter? - Upper deck lavatory exterior wall.
Give examples of Immediate Action Items on the Quick Reference Checklist - 1. CABIN ALTITUDE - Rapid
Depressurization
2. ENG 1,2,3,4 AUTOSTART - Aborted Engine Start
3. Engine Limit or Surge or Stall
4. IAS DISAGREE - Airpseed Unreliable
5. FIRE ENG 1,2,3,4 - Engine Severe Damage or Separation
,6. Multiple Engine Flameout or Stall
What is the maximum Takeoff and Landing Tailwind component for the -400F/ 08 and LCF? - 15 knots
(LCF - 10 KTS)
What is the maximum headwind component for autoland - 25 knots
What are maximum and minimum glideslope angles for ILS autoland - 3.25 degrees (max)
2.5 degrees (min)
What VNAV limitation applies to level - off within 2,000 feet after changing the altimeter setting from
QNE to QNH, or QNH to QNE - Do not use VNAV for level - off if the QNH is less than 29.70in / 1006 hPa
Without LAND 2 or LAND 3 annunciation, the autopilot must not remain engaged below what RA
altitude - 100 feet RA
What is turbulent air penetration speed - 400F and -8 - 290 to .82 to 0.85 Mach, whichever is
lower.
310 KTS / 0.83
What is the maximum altitude for flap extension - 20,000 feet
Are operations allowed when the reported braking action is NIL? - No
What is maximum landing gross weight 400F - 302,092 kilograms
What is the difference in the Basic Operating Weight (BOW) on the Operational Flight Plan (OFP) and the
Sable Loadsheet? Is there a difference between the Sable and OFp final calculated ZFW and TOGW? -
BOW OFP = Basic Operating Weight includes weight of all cokcpit and cabin crew
, BOW Sable = Basic Operating Weight Aircraft basic weight + 2 crew (Only includes 2 pilots not whole
upperdeck occupancy.)
Which manual would you reference to if the Aircraft ZFW was greater than 276,691 and why? - Weight
and Balance Manual
Comply with decreased maximum weight limits when using Variable Zero Fuel Weight
What BTMS number on the GEAR synoptic display will cause an EICAS advisory message of BRAKE TEMP
- 5 or more
B747 Oral Question Bank Review - Engines -
What does the EEC use as the controlling parameter for the GE engines - N1
What protection features are provided in the EEC Normal mode - Thrust limiting
Maintains constant thrust
Over-speed protection
What occurs in the auto-throttle system when any EEC control is switched to alternate mode - The auto-
throttles disconnect, but can be.reconnected when all EEC's have been switched to alternate mode
What EEC normal mode protection feature is not available in EEC Alternate mode - Thrust limiting at
maximum N1
(Maximum thrust can be achieved prior to thrust lever position at full forward)
When does the EEC select approach idle - Flaps in a landing position
