To fly this approach lost com, you'd fly to your clearance limit
of overhead the airport, and then to which IAF?
I remember a story about a 10-wheel truck that got stuck in an underpass because the driver ignored the vertical clearance limit
The 32-year-old captain with 4,000 flying hours, told the AAIU: "As we began to climb we had some confusion as to what the altitude clearance limit
was as we were unsure what level 200 meant.
185(c)(3)(ii) (and the AIM] clearly state: "If the clearance limit
is not a fix from which an approach begins, leave the clearance limit
at the expect-further-clearance time if one has been received, or if none has been received, upon arrival over the clearance limit
, and proceed to a fix from which an approach begins and commence descent or descent and approach as close as possible to the estimated time of arrival as calculated from the filed or amended (with ATC) estimated time en route.
The National Transportation Safety Board blamed the crash on "the descent of the aircraft below its clearance limit
and below that of surrounding obstructing terrain," but it could not determine "the cause of such descent.
This suggests that leg lengths can be shortened on implicit holds, such as a climbing hold on departure or reaching a clearance limit
, but not on explicitly assigned holds.
Timing Upon entering If clearance limit
is not a fix from VMC.
As it usually is in your clearance, your clearance limit
is your destination airport: KBOS.
According to the Instrument Flying Handbook, a clearance limit
may not indicate which approach procedures will be used in a terminal area having a number of navigation aids and approach procedures.
185 permits the pilot to "begin an instrument approach into the destination airport and land regardless of the early arrival because the airport was given as a clearance limit
in the initial ATC clearance.
Brazilian authorities also maintain the clearance did not contain a clearance limit
You probably learned the acronym CRAFT for Clearance limit
, Routing, initial and final Altitude, departure Frequency, and Transponder squawk code.