LIBRARY 151 · SPOKEN CHAPTER 151 · 2:48
Transponder Malfunction
Practice communicating this situation: The transponder displays a fault and ATC reports no transponder reply.
Your scenario
You are flying Evektor, registration N827EV. Your position is 10 miles southeast of Paine Field, indicated altitude 4500 feet. You are tuned to Seattle Approach. Your planned destination is Skagit Regional.
Practice goals
- The transponder displays a fault and ATC reports no transponder reply. Voice communication remains clear in both directions, and the airplane otherwise operates normally in visual conditions.
- State the problem and requested assistance without inventing aircraft handling or a successful outcome.
Respond aloud during each ten-second practice window, then compare with the example. Replay any exchange you want to practice.
Read the transcript From the published English caption file
Practice silences are omitted. Timestamps open the corresponding point on YouTube.
- 0:00 NARRATOR: Chapter 151. Here is the scenario: Your transponder is malfunctioning, but the
- 0:04 radio still works. Practice explaining the problem and responding to the controller.
- 0:11 NARRATOR: Your starting details: You are flying Evektor, registration N827EV. Your
- 0:17 position is 10 miles southeast of Paine Field, indicated altitude 4500 feet. You are
- 0:24 tuned to Seattle Approach. Your planned destination is Skagit Regional.
- 0:31 NARRATOR: Play the pilot. At each prompt, use the ten-second pause to respond aloud or
- 0:37 decide whether to transmit. Then compare with the example. This is simulated radio
- 0:42 practice.
- 0:45 NARRATOR: Scenario update: The transponder displays a fault and ATC reports no
- 0:50 transponder reply. Voice communication remains clear in both directions, and the
- 0:55 airplane otherwise operates normally in visual conditions. This is a
- 0:59 communications-only exercise, not an aircraft emergency checklist. Aviate first.
- 1:05 NARRATOR: Your task: State your problem, position and requested assistance. Keep
- 1:09 flying the airplane; the practice pause is not operational delay.
- 1:23 PILOT: Seattle Approach, Evektor 827EV, 10 miles southeast of Paine Field, Transponder
- 1:28 appears inoperative, voice radios working normally. Request instructions for landing
- 1:33 at Skagit Regional with the transponder unavailable.
- 1:37 APPROACH: Evektor 827EV, roger, advise if further assistance is needed
- 1:45 NARRATOR: Your task: For this exercise, there are 2 people on board and estimated
- 1:51 usable fuel is 45 minutes. Your indicated altitude is 4500 feet and heading is 360.
- 1:57 Give only what workload permits; these are scenario facts, not a checklist.
- 2:12 PILOT: At 4500, heading 360, maintaining VFR. The transponder shows a fault; I can
- 2:18 still transmit and receive by voice, Evektor 827EV
- 2:23 NARRATOR: End of this exercise: End of the radio decision exercise. The stated
- 2:27 condition remains unresolved; no landing, rescue, repair or medical outcome is
- 2:31 assumed. Continue the appropriate aircraft-specific procedures and assistance
- 2:34 coordination.
- 2:36 NARRATOR: Chapter debrief: Communications exercise ends with the stated condition
- 2:40 unresolved; subsequent aircraft handling is outside scope.
- 2:45 NARRATOR: If you enjoyed this video like and subscribe
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