PRM Approaches Flashcards
what is PRM?
Approaches that are independent and simultaneous to runways 3000 to 4000’ apart.
What is the NTZ?
No Transgression Zone
When conducting closely spaced PRM approaches, the secondary monitor frequency is:
Pilots never transmit on the monitor frequency, they only receive transmission on it.
Pilots may flight a PRM approach:
The approach itself is to be flown using the flight director or the autopilot, but a “ breakout” must always be hand flown.
At an airport where the PRM runway ILS glideslope is reported out of service, you can still conduct a PRM approach if you are approved to:
You can conduct an RNAV (GPS) PRM approach to that runway if you are approved for vertically
guided RNAV approaches (LNAV/VNAV or LPV).
Briefing a climbing and descending “breakout” procedure for your aircraft before conducting
a PRM is required and noted on the AAUP because:
Because pilots do not perform a “breakout” with regularity either in actual flight or in
a flight simulator, it is critical to preplan the maneuver so that it can be executed
correctly, in a timely manner……just in case!
What is SOIA?
Simultaneous Offset Instrument Approach, to runways 3000’ to 750’
The SOIA offset PRM approach procedure can be thought of as:
The SOIA offset approach procedure is an instrument approach with a visual segment from the offset MAP to the runway threshold.
When conducting SOIA procedures, the aircraft are paired. Prior to reaching the offset approach MAP, the aircraft conducting the offset approach will always be positioned by ATC:
The offset aircraft will always be slightly to the rear so as to be in the best position to visually acquire the straight-in aircraft.
If ATC advises the aircraft conducting the SOIA offset approach that there is traffic on the
adjacent straight-in final, the offset aircraft is authorized to continue past the MAP for a landing if:
All three are required. Remember that ATC is not required to acknowledge the aircraft’s
“traffic in sight” transmission.
Your FMS map display depicts the RNAV (GPS) PRM missed approach begins at about the
runway threshold:
The coding is correct, but the depiction of the missed approach beginning near the runway threshold does not initially represent the charted missed approach procedure. Always execute the charted missed approach.
Why is the RNAV approach coded in the FMC so that the missed approach does not begin
at the charted MAP:
Pilots will have a vertical reference to the runway threshold, for maneuvering and wake
avoidance purposes.
After passing the MAP you lose sight of either the traffic you are following or the runway
threshold:
Inform ATC you are executing a missed approach. Follow the published missed approach unless otherwise instructed by ATC.
