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Intermittent ANR, phones and sidetone | Bose Aviation Headset X
Determine if any recent changes have been made to the headset or aircraft.
If any changes or modifications have been made to either the headset or the aircraft, look into whether or not those changes could have unexpectedly caused this issue.
Re-insert the headset cable to the aircraft panel.
- Disconnect the down cable where it attaches to the panel
- Inspect the connections for damage or debris and remove any debris that is found. If there is damage to any the connections, they may need to be replaced
- Firmly reconnect the down cable to the panel
If you have ever unplugged the microphone cable from the headset, disconnect it again and check for debris or damage at the connectors.
Make sure the connectors on the cable and at the headset are both free of debris (dirt, lint, dust, etc.) or damage, which could prevent a proper connection. For more info, see Attaching or moving the boom microphone on the headset.
Check if the issue only occurs at certain altitudes.
In non-pressurized aircrafts, the effectiveness of noise-cancellation decreases as the alititude increases. The headset might also produce a whining sound in these situations. For info on maximum altitude for full noise cancellation, refer to the headset specifications.
Plug in a different headset.
If available, connect a different headset to the aircraft to determine if the issue is related to the aircraft panel or its settings.
Check the integrity of the 6-pin panel connection.
If there are any broken pins inside the connection, replace the installation kit.
Replace worn ear cushions.
The issue may be caused by the lack of a proper seal by the ear cushions around the ear. Also check to be sure the cushions are securely attached to the earcup. Replacing worn ear cushions will aid in comfort, the performance of the active noise reduction and battery life
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