Airport Operations Flashcards
You are 30 miles out from your home base, a Class C airport, when you notice that the radios have been dead quiet for some time. What are you going to do?
Fly the airplane and troubleshoot.
How do you troubleshoot dead radios?
Check the radio frequency volume and the intercom/pilot volume, check headset connections, try a different headset, check your headset volume, verify you’re on the correct frequency, try the previous frequency (if you forgot it, contact a FSS in order to get the appropriate one), turn the avionics switch off and on again, check the circuit breakers, press the mic and see if a “TX” is displayed next to the active com frequency - this indicates that your radio calls are transmitting properly.
Show me specifically how you would check both the com radio volume and the intercom/pilot volume during radio failure.
Knob by the com frequency controls that frequency’s volume (so the volume of ATC and other traffic). The VOL/SQ knob toward the bottom of the audio panel controls the intercom volume - i.e. the volume of aircraft occupants’ voices.
How can you verify that the radio frequency’s volume is appropriate even when ATC or other aircraft are not talking?
Press the com volume knob so that the squelch sounds and adjust the volume from there - the volume of the squelch matches the radio volume.
How can you determine whether the problem is a stuck mic during radio failure?
A white “TX” appears permanently by the active COM frequency.
You see that the white “TX” remains on permanently. You’re now 25 miles out from your original Class C destination. Let’s say that there’s another ATP location approximately the same distance away, this one a Class D airport that you are moderately familiar with. There are also numerous untowered Class G airports in the vicinity. What are you going to do?
Continue to prioritize flying the airplane. I’ll announce that I have a stuck mic and state my intentions, switch off the frequency so that I’m not clogging up the radios, and squawk 7600. Due to all the IFR and large commercial traffic that fly into Class C airports, as well as because the FAR/AIM doesn’t detail VFR lost com procedures for Class C and B airports, I’ll divert to the other ATP location, the Class D airport. If I had been completely unfamiliar with the Class D airport I probably would have initially headed to one of the untowered G airports just to get the plane on the ground and regroup and devise a plan to get back
Would you consider lost coms to be an emergency scenario?
No, not barring some aggravating circumstance like, say, low fuel, a sick passenger, rough running engine, total electrical failure at night in an unfamiliar area, etc. That said, if a different pilot feels it’s an emergency then it’s totally that pilot’s prerogative to act accordingly. In that case, squawk 7700 instead of 7600.
How might a complete electrical failure (instead of just a stuck mic) alter your destination choice?
I would be more inclined to head to one of the untowered airports. Without electricity I won’t be able to squawk 7600, the ADS-B won’t work so detecting traffic would be much more challenging, ATC won’t be able to see my altitude because the Mode-C/S capability would be gone, and a total electrical failure would likely be a sign of a larger electrical issue, one that could even be a fire hazard. So I’d just want to get the plane on the ground at one of the nearby Class G airports, regroup and go from there.
Is there still a way that you could communicate and coordinate your lost-coms arrival with the Class D tower in the plane, even with a completely failed electrical system?
Yes I could use my cell phone (easy with some headsets) . . . as long as I could locate the tower’s phone number.
So you’re approaching the Class D airport with a stuck mic (the rest of your electrical system is operating correctly) . . . take me through your procedures for getting the plane safely and legally on the ground.
I will follow the procedures in AIM 4-2-13 and remain outside or above the Class D airspace until I can determine the direction and flow of traffic. All of our planes have ADS-B so this should be easy to determine. (Otherwise, I would fly above the airspace for a better vantage point and observe pattern direction and traffic flow from there.) Then I’ll switch to the tower frequency and state my type aircraft, position, altitude, intention to land, and request to be controlled with light signals - then switch back off of the frequency.
You haven’t received a light gun signal yet, can you enter the Class D airspace during lost comms?
Yes, per the 4-2-13 “Receiver Inoperative” procedures.
So you’re heading toward the traffic pattern during lost comms, what’s next?
Approximately 3 to 5 miles from the airport, I’ll advise the tower of my position and join the airport traffic pattern – if I’m not sure of the location of other aircraft in the pattern, good ADM would have me remain 500ft above the highest traffic pattern until I know that TPA is clear. From this point on I’ll watch the tower for light signals, transmitting my position during each leg of the pattern before switching back off frequency.
As you approach the pattern you receive a solid red light gun signal. What are you going to do?
This signal means “give way and continue circling,” so I’ll acknowledge receiving the signal by rocking my wings, then give way and circle outside of (or above) the pattern while awaiting further light signal guidance.
What is the procedure for acknowledging light signals at night?
Flash the landing light or nav lights.
How do you acknowledge light gun signals on the ground during the day
Move the ailerons or rudder.