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Atlas Air B767 > Automatic Flight/FMS/Nav > Flashcards

Automatic Flight/FMS/Nav Flashcards

1
Q

4 ways to disengage activated AP?

A
  1. Disengage switch on control yoke
  2. Disengage Bar
  3. AP CMD Button (respective)
  4. NORM STAB TRIM
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2
Q

How is C A/P powered when APP armed?

A

HOT BATT BUS

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3
Q

After takeoff selection of FLCH does what?

A
  • Autothrottles will engage in CLB THR
    • A/T FMA = N1
  • FLCH pitch mode engaged
    • Pitches for MCP airspeed
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4
Q

What modes can be ARMED prior to becoming active and what’s unique about how they can be disarmed?

A
  • LNAV
  • LOC
  • APP

Pushing switch before becoming active will DISARM

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5
Q

If APP is ARMED and LOC/GS captured, how can APP mode be canceled?

A
  • Disengage AP + Turn OFF both FDs
  • Go-Around selected
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6
Q

MCP THR MODE selects?

A

Sets N1 to THR REF

and

Snap Shot of PPOS taken from FMC when pressed after takeoff.

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7
Q

FLCH during CLIMB (THR + Pitch)?

A
  • A/T advances thrust to max of the selected mode reference thrust (CLB/CLB1/CLB2)
  • AFDS pitches for selected speed
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8
Q

FLCH during descent (THR + Pitch)?

A
  • Descent planned for MCP ALT in 2 mins

else:

  • A/T sets idle thrust
  • AFDS pitches to hold selected IAS
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9
Q

LNAV capture criteria?

A
  • A/C will capture LNAV if within 2.5NM of active route segment, regardless of HDG
  • If more than 2.5NM, A/C must be on intercept HDG and able to capture segment before the active waypoint.
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10
Q

ALL CAT II and CAT III APPs must terminate?

Flown by?

Recommended flaps?

A

with AUTOLAND or MAP

CAPT only LAND

FLAPS 30 recommended for sight picture

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11
Q

Once APP commenced, can it be continued if required RVR drops below MINS?

A

CAT3 = YES

CAT2 = YES, provided proper visual cues are in sight by the DA(H)

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12
Q

When will ASA display LAND2/LAND3?

A

When descending through 1,500’

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13
Q

FAIL OPERATIONAL vs FAIL PASSIVE

A

*See image below…

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14
Q

FLARE(FMA) + Thrust Idle + ROLLOUT(FMA) engaged during AUTOLAND sequence?

A

FLARE = 50’ RA

THR IDLE = 25’ RA

ROLLOUT = 5’ RA

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15
Q

CAT1 or better AUTOLAND?

A

Must advice ATC to ensure ILS critical area is clear and protected.

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16
Q

IRU ALIGN panel light?

STEADY/FLASHING/OFF

A

STEADY LIGHT:

  • IRU is aligning
  • IRU is in ATT mode
  • IRU is shutting down

FLASHING LIGHT:

  • Bad position entered
  • PRES POS missing
  • A/C moved during alignment

EXTINGUISHED LIGHT:

  • ALIGN complete
  • IRU not in align mode
17
Q

IRU ATT Mode operations?

A

IRU enters ALIGN mode for 30 seconds.

  • A/C should maintain straight and level
  • re-levels system and provides ATT reference
18
Q

IRU ON DC panel light?

IRU DC FAIL panel light?

A

ON DC:

  • AC PWR LOST and DC PWR being used
  • EICAS CAUTION: IRS ON DC
  • Horn sounds on GND (nose wheel well)

DC FAIL:

  • DC PWR is lost while AC PWR is being used
19
Q

IRU FAULT panel light?

A

Fault detected

EICAS CAUTION: IRS FAULT

20
Q

IRU selector to NAV? Required?

A
  • Initiates 10 minute alignment process.
  • PRES POS must be entered via FMC/IRS Panel:
    • FMC GPS POS
    • FMC LAST POS
    • FMC APT REF POS
  • Required if more than 18 hours since last FULL ALIGN
21
Q

IRU High Altitude Alignment Sequence?

A
  • IRUs selected to ALIGN (minimum 17 MINS)
  • PRES POS entered
  • IRUs selected to NAV

​*Ops between 70 and 78 degrees

22
Q

IRU Fast Alignment Sequence?

A
  • A/C stationary
  • IRUs selected to ALIGN
  • Enter PRES POS
  • IRUs selected to NAV
  • Takes 30 seconds (removes errors + updates POS)

<em>Full Align required if leg will exceed 18 hours from last full alignment of system</em>

23
Q

IRU Power Sources?

Primary and Backup

A

PRIMARY = AC POWER

  • L = L AC XFER
  • R = R AC
  • C = C AC

BACKUP = DC MAIN BATT BUS

  • R IRU for 5 mins only
    • shed to save battery power
24
Q

Only information available with IRU in ATT mode?

A

HDG + ATT

ATT:

  • fly straight + level for 30 sec

HDG:

  • enter MAG HDG through IRS panel or POS INIT page of CDU
25
Q

GA Thrust Mode climb rate?

A

At least 2000’ FPM

26
Q

When is GA mode ARMED?

How can you tell?

How is it activated?

A
  • GS Capture
  • Flaps out of UP
  • REF THR limit changes to GA*
  • Activated when GA switch pressed
  • Exited when new roll or pitch mode selected above 400’RA*
27
Q

ROLL MODE switch in AUTO?

A

While in HDG SEL MODE, it provides 15-25 degrees dependent on airspeed.

28
Q

Once ARMED, how are AUTOTHROTTLES engaged?

A
  • THR
  • SPD
  • VNAV
  • FLCH
29
Q

When will FD auto-display with switch OFF?

A

CONDITIONS:

  • Above 80KTS
  • FLAPS out of UP
  • GA Pressed
30
Q

Turning both FD OFF will auto-engage?

A

Autothrottles

Atlas Air B767 (16 decks)

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