Short Final

Gemini Sparkle

Key Takeaways:

  • A pilot was instructed by NY Approach to "Squawk 1238," causing confusion and a delay.
  • The pilot confirmed the code multiple times but was unable to enter it, stating, "I can't."
  • The issue stemmed from the controller mistakenly providing a common radio frequency (123.8) instead of a valid transponder code.
  • Transponders use octal digits, meaning the digit '8' is not available and the requested code was impossible to squawk.
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I was flying right seat, giving instruction in a Cessna 210 VFR over New York asking for advisories. The left-seat pilot owned the aircraft and was proficient. After bouncing around with several different controllers, we found one that would talk to us:

NY Approach:
“Squawk 1238.”

The left-seat pilot pushed 1-2-3 on the transponder and then stopped and looked at me.

Pilot:
“Did she say ‘1-2-3-8’?”

Me:
“Yes … .”

Pilot (to NY Control) :
“Did you say ‘1-2-3-8’?”

NY Approach:
“Yes. Squawk 1238.”

(I was laughing.)

Pilot:
“I can’t.”

NY Approach:
“You can’t squawk 1238?”

Pilot (definitively) :
“That’s right. I can’t.”

Ten long seconds went by.

NY Approach:
“Try squawking XXXX. [It was a good number this time.]

123.8 is a common Philadelphia approach frequency that New York often hands people off to. Of course, there is no 8 on a transponder.


Michael McNamara
via e-mail

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