Part# 11-15526
MFR Model# PA77S-20


Headset Extension (2 jacks, 2 plugs) for Monaural or Stereo Headsets: Heavy duty extension cord allows general aviation headset to be extended 5 - 25 ft.
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If I could have gotten a shorter one I would have. These came fast and work and look great. Good quality.

April 29, 2021

Works great. And fast delivery

Randy S
March 15, 2021

Works Great for Extending the Headset to Communicate with a Elderly Person (hard hearing), behind a Glass Door, in a Nursing Home

Rick A
November 2, 2020

Fine product, works great!

Patrick M
April 28, 2018

Works fine. Sufficiently long to allow third row passenger in a Bonanza A36 to connect to a pilots socket.

April 20, 2018

This extension worked fine, at first. Over the course of the year (it was permanently in my plane) the insulation peeled and cracked and fell off. If you take this out and protect you may get better use, but as a permanently installed extension, they are terrible and needed to be replaced. Well our of any warranty I just ate the lost cost. I do not recommend this product and caution your purchase. The insulation fails and then the integrity of the product. There are no priced as use for a few months and then discard.

Gary P
November 22, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will this extension cord work with the Bose, first generation, noise canceling headset? (the one prior to the A20).

Yes, the only determining factor for whether this will work or not with your headset is the plug type. This extension has dual GA twin plugs commonly found in most GA aircraft setups. It will not work as an extension for any of the other style plug connectors, ie single pin LEMO, U-174 Heli, etc.

Q: Will this extension cord support all the functionality in the new Bose A20 (stereo, music, phone, etc) assuming the plug types match my aircraft setup?

Yes, this will work as an extension for the Dual GA model Bose A20 headset.

Q: REFERENCE PART NUMBERS 11-15525,11-02290 and 11-10640: Please confirm that the plugs are for extension of PJ-055 (for headphone) and PJ-068 (for mic).

Yes, these are extensions for the plugs you referenced.

Q: will this cord work with the Flightcom IIsx voice activated intercom?

Yes, this cord should fine with this intercom.

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