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INSTRUMENT FLIGHT RULES WORKBOOK
CHAPTER EIGHT
When the short range clearance limit is not on the FILED route of flight, a pilot should request
expected further clearance (EFC) from the short range clearance limit to the intended destination
if the EFC is not contained in the original clearance. If the pilots developed two-way radio
failure enroute to Dared (DARED) Intersection, they would continue to Dared (DARED)
according to the ATC clearance and proceed to Marianna VORTAC according to the EFC.
With two-way radio failure in IFR conditions on an ATC clearance, a pilot will fly at the highest
of the following altitudes for the route segment being flown:
1.
The altitude assigned in the last ATC clearance received;
2.
The Minimum Enroute Altitude depicted on IFR Enroute Charts; or
3.
The altitude ATC has advised may be expected in a further clearance.
When it is necessary to climb or descend the following applies:
1.  Climb or descend to the assigned altitude in accordance with the last ATC clearance
received,
2.
Climb or descend to the Minimum Enroute Altitude or climb to the Minimum Crossing
Altitude at the time or place necessary to comply with the minimum, or
3.
Climb/Descend to the altitude ATC has advised may be expected in a further clearance at
the time or place included in the expected further clearance.
Assume two pilots filed an IFR flight plan from Cross City to Marianna Municipal Airport and
the route of flight reads: Direct to HEVVN Intersection V521 to Marianna VORTAC. If ATC
cleared the pilots as filed, maintain 5000 feet, and they experienced two-way radio failure prior
to reaching HEVVN, the pilots would climb to 7000 feet and proceed on V521 to TERES at
which time they would descend to 5000 (highest altitude for route segment).
Notice on the chart that HEVVN has a Minimum Crossing Altitude (MCA) of 7000 feet on V521
when flying west. In this case, the pilot must begin the climb so as to pass over HEVVN at 7000
feet.
While on an IFR flight plan with a short range clearance limit, if no holding instructions have
been received, continue to the IAF/navigation facility/fix serving the destination airport at the
last assigned altitude or Minimum Enroute Altitude (MEA), whichever is higher. If holding
instructions have been received, leave the holding fix at the expected further clearance time.
Begin descent to commence the approach from the enroute altitude upon reaching the fix from
which the approach begins, but not before the estimated time of arrival derived by adding the
estimated time enroute (as filed on the flight plan) to the actual departure time.
INTRODUCTION TO GROUND, AIRBORNE, LOST COMMUNICATION, AND
EMERGENCY VOICE PROCEDURES 8-33


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