Bose QC2 w/ Ufly Mic - earbuds now required by FAA

[rptrain]

http://www.honeywell.com/sites/aero...770_H6B56709F-3C71-3B17-8FE6-B372A64AA28C.htm

"If the part successfully passes all the tests, then the manufacturer will receive a letter from the FAA stating the part is approved per the TSO. This TSO approval letter means the part is eligible for installation in any aircraft via an STC or TC as long as the operating environment of the part in the aircraft is within the TSO criteria."

so, i assume all of you TSO'd headset disciples have the TC or STC certificate that incorporates your headset into the aircraft type design.

what's that? you don't? ooh, i'm telling!!!

 

[belchfire]

http://www.honeywell.com/sites/aero...770_H6B56709F-3C71-3B17-8FE6-B372A64AA28C.htm

"If the part successfully passes all the tests, then the manufacturer will receive a letter from the FAA stating the part is approved per the TSO. This TSO approval letter means the part is eligible for installation in any aircraft via an STC or TC as long as the operating environment of the part in the aircraft is within the TSO criteria."

so, i assume all of you TSO'd headset disciples have the TC or STC certificate that incorporates your headset into the aircraft type design.

what's that? you don't? ooh, i'm telling!!!

GOM states that while the company provides headsets (crappy Telex headsets) the use of personal headsets is allowed if they meet TSO-92 or whatever the hell it is...

Since these headsets are used in-not "installed" in the aircraft and the mic power and impedance and headphone impedance are all aircraft standard you can do it the same way you can get away with plugging in a portable intercom or GPS reciever in a light airplane.

This is in stark contrast to plugging in your silly computer/MP-3 player headphones into the aircraft...

 

[mblackey]

GOM states that while the company provides headsets (crappy Telex headsets) the use of personal headsets is allowed if they meet TSO-92 or whatever the hell it is...

Since these headsets are used in-not "installed" in the aircraft and the mic power and impedance and headphone impedance are all aircraft standard you can do it the same way you can get away with plugging in a portable intercom or GPS reciever in a light airplane.

This is in stark contrast to plugging in your silly computer/MP-3 player headphones into the aircraft...

Belchfire,

Your statement would be true except there is no such thing as "aircraft standard" since DO-214 and DO-160, which govern TSO standards, are full of "standards" but there is no guidance about which ones to use for a TSO Authorization. A manufacturer can choose a "standard" fail to meet it and STILL get a TSO as long as the failed standard is listed as a "limitation" in the user guide for the TSO'd article.

Second, the "silly computer/MP-3 player headphones" you refer to are in compliance with the same TSO standards as the Bose X. They were tested under the same conditions and to the same standards at Sun Laboratories, a very respected facility. Results are on file with the FAA.

The statement by any organization or person that a headset "must meet TSO standards" shows that organization or person doesn't know what they're talking about. There are 23 environmental categories under DO-160 and DO-214 is an inch thick and full of "could" "should consider" "might" and varying test methods. There is NO such thing as "meets TSO standards..." in reality.