Air Regs

Question 1

T/O Alternate forecast time period

Answer 1

at ETA and 1 hour after

Question 2

Distance for T/O Alternate

Answer 2

1 hour on 1 engine inoperative (430kts for ETOPS)

Question 3

Minimum limits when T/O Alternate
CAT1 and CAT1R

Answer 3

CAT1: 1/4 sm or RVR 1200 (6 runway lights). If runway centerline is available, 1/8sm or RVR 600
CAT1R: ceiling 300ft and visibility of 1sm
If below CAT 1 minimums: AC must be in main seat

Question 4

IFR Alternate on TAF
N-Precision
Precision
2 precisions

Answer 4

Valid at ETA
N-P: 800 ceiling or 300 above lowest usable HAA/HAT
2sm vis or 1 above lowest usable vis
1 Precision: 600 ceiling or 300 above lowest usable HAA/HAT
2sm vis or 1 above lowest usable vis
2 Precisions: 400 ceiling or 200 above lowest usable HAA/HAT
1sm vis or 1/2 above lowest usable vis

Question 5

IFR alternate on GFA

Answer 5

At ETA
Ceiling: 1000ft above highest published circling HAA (regardless of A/C category)
Visibilkity: 3miles

Question 6

IFR Alternate with no approach or no usable traditional app navaids other than RNAV

Answer 6

Forecast must permit a visual descent from IFR MEA and a VFR approach and landing

Question 7

IFR Alternate GNSS only at alternate

Answer 7

Approach at planned dest is independent of GNSS and available at the ETA;
Vertical guidance limits do not apply (LNAV/ VNAV or LPV)
Max 1 Satellite u/s ± for alt ETA based on GNSS NOTAM
RAIM available in flt at alt ETA ± 15 min(at least once prior to mid-point of flt)

Question 8

TAF terms
TEMPO
PROB
BCMG

Answer 8

TEMPO: conditions not below alternate minimum for aerodrome (dest or alt)
PROB: condition not below published landing minima for landing runway (dest or alt)
BCMG: Wx worsening: start of period
Wx improving: end of period

Question 9

To take off
CAT 1 min ceiling/vis
CAT 1R min ceiling/vis

Answer 9

CAT 1: ceiling: lowest usable HAA/HAT for landing runway. Visibility: lowest usable visibility for landing runway
CAT 1R: ceiling: lowest usable HAA/HAT for landing runway +300’. Visibility: lowest usable for landing runway + 1 mile

Question 10

Lowest ceiling/vis to file
CAT1
CAT1R

Answer 10

CAT1: 0/0
CAT 1R: ceiling: add 300’ + 1 hour of ETA. Visibility add 1 mile

Question 11

Alternate required if:

Answer 11

Destination is GNSS only
Destination is RADAR only
Flight duration is over 3 hours
WX is worse than 3000’ and 3SM for the duration of the flight + 1 hr after the ETA

Question 12

T/O Alternate requirements

Answer 12

T/O Alternate meets at or above alt reqmts at ETA + 1hr (@T/O-alt), and
2x Engine, make it to the T/O-Alt:
with one-engine out at normal cruise speed
T/O-Alt must be within 1 hour range of departure aerodrome at the above speed
T/O-Alt must be in the remarks of the flight plan and as a 2nd alternate
The Aircraft Captain (AC) shall occupy the main control position (as applicable) for the aircraft

Question 13

Minimum w/ required to T/O with T/O Alternate (ceiling/vis)
CAT 1
CAT 1R

Answer 13

CAT1: 0 ceiling. 1/4SM or RVR1200 (6 runway lights 200ft apart). If runway centerline is lit, limits lowered to: 1/8SM or RVR600
CAT1R: 300’ and 1SM