Consolidated "Channel 9 Availability" Discussion Thread [Merged]
Mar 2, 2023, 11:07 am
#316
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Ch.9 is not available on any 737 aircraft.
It is installed on the Max 8, and newest Max 9, aircraft but there is a problem with it which allows the flight interphone to bleed into the Ch.9 feed so the system is to be off at all times until the hardware issue, causing the bleed-through, is corrected.
If it was on, it was a mistake. The switch likely was bumped after the initial cockpit preflight when it is confirmed to be off.
It is installed on the Max 8, and newest Max 9, aircraft but there is a problem with it which allows the flight interphone to bleed into the Ch.9 feed so the system is to be off at all times until the hardware issue, causing the bleed-through, is corrected.
If it was on, it was a mistake. The switch likely was bumped after the initial cockpit preflight when it is confirmed to be off.
Mar 2, 2023, 7:13 pm
#317
Join Date: Nov 2022
Posts: 84
Ch.9 is not available on any 737 aircraft.
It is installed on the Max 8, and newest Max 9, aircraft but there is a problem with it which allows the flight interphone to bleed into the Ch.9 feed so the system is to be off at all times until the hardware issue, causing the bleed-through, is corrected.
If it was on, it was a mistake. The switch likely was bumped after the initial cockpit preflight when it is confirmed to be off.
It is installed on the Max 8, and newest Max 9, aircraft but there is a problem with it which allows the flight interphone to bleed into the Ch.9 feed so the system is to be off at all times until the hardware issue, causing the bleed-through, is corrected.
If it was on, it was a mistake. The switch likely was bumped after the initial cockpit preflight when it is confirmed to be off.
Mar 2, 2023, 9:06 pm
#318
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Mar 15, 2023, 4:51 pm
#321
Join Date: Dec 2006
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Posts: 825
No Channel 9 on 738 Max?
In flight right now and my request for Channel 9 to be turned on was declined because on a 737 Max 8, turning it on also allows passengers to hear the pilots internal comms. Anyone else that can validate?
Last edited by lilpisher; Mar 15, 2023 at 4:52 pm Reason: Clarify plane type
Mar 15, 2023, 10:52 pm
#324
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Mar 21, 2023, 4:43 pm
#325
Join Date: Apr 2012
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Just boarded UA1435 SFO-IAH on a 757-200 and it’s on, on the ground! I’m so happy! Should be fun since SFO weather is a mess.
edit: pilot just explicitly announced channel 9 would be available. What is going on here!? I usually have to beg and be told it’s not possible anymore.
edit: pilot just explicitly announced channel 9 would be available. What is going on here!? I usually have to beg and be told it’s not possible anymore.
Last edited by BThumme; Mar 21, 2023 at 5:12 pm
Mar 21, 2023, 5:36 pm
#327
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Just boarded UA1435 SFO-IAH on a 757-200 and it’s on, on the ground! I’m so happy! Should be fun since SFO weather is a mess.
edit: pilot just explicitly announced channel 9 would be available. What is going on here!? I usually have to beg and be told it’s not possible anymore.
edit: pilot just explicitly announced channel 9 would be available. What is going on here!? I usually have to beg and be told it’s not possible anymore.
Mar 21, 2023, 6:44 pm
#328
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Was on UA 1575 DEN-PHL last Friday, a very nice 737 Max 9 with From the Flight Deck but alas it was completely silent
Mar 23, 2023, 9:40 am
#329
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That's good to hear. I've also had it when it's been on while on the ground, and then goes silent at some point before/during taxi. Not sure if it was because the previous flight crew had left it on, and the current flight crew didn't realize it until then and turned it off.
Mar 23, 2023, 10:27 am
#330
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The 737-8 an 739-9 (with new entertainment systems) have the capability, but it's not yet certified for use. It seems there's some leakage between radio channels, so the pilots have been instructed to keep it off on these models.