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Boeing 737-700 (VH-VUO) - Close up detail of tail section of a B738. Note the outflow valve in the open position below rear door passenger exit. As the aircraft gains altitiude, this door will slowly close, but not completely shut, which allows the passenger cabin and flight deck  to pressurise, allowing passengers to breathe at a comfortable atmospheric pressure of about 7000ft. The final figure depends on final cruise altitude, ultimaterly keeping the pressure differential for the fuselage structure within safe limits.
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Boeing 737-700 (VH-VUO)

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Close up detail of tail section of a B738. Note the outflow valve in the open position below rear door passenger exit. As the aircraft gains altitiude, this door will slowly close, but not completely shut, which allows the passenger cabin and flight deck to pressurise, allowing passengers to breathe at a comfortable atmospheric pressure of about 7000ft. The final figure depends on final cruise altitude, ultimaterly keeping the pressure differential for the fuselage structure within safe limits.

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ACTIVITY LOG
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Date Aircraft Origin Destination Departure Arrival Duration
04-May-2025 B738Melbourne Tullamarine ()Sydney () 09:40AM AEST 10:45AM AEST Scheduled
04-May-2025 B738Canberra Int'l ()Melbourne Tullamarine () 07:25AM AEST 08:20AM AEST Scheduled
03-May-2025 B738Melbourne Tullamarine ()Canberra Int'l () 05:15PM AEST 06:00PM AEST Scheduled
03-May-2025 B738Gold Coast ()Melbourne Tullamarine () 02:05PM AEST 04:10PM AEST Scheduled
03-May-2025 B738Melbourne Tullamarine ()Gold Coast () 11:20AM AEST 01:05PM AEST Scheduled
03-May-2025 B738Brisbane ()Melbourne Tullamarine () 08:05AM AEST 10:10AM AEST Scheduled
02-May-2025 B738Ayers Rock ()Brisbane () 04:32PM ACST 07:34PM AEST 2:31
02-May-2025 B738Brisbane ()Ayers Rock () 12:47PM AEST 03:33PM ACST 3:16
02-May-2025 B738Melbourne Tullamarine ()Brisbane () 09:41AM AEST 11:35AM AEST 1:53
02-May-2025 B738Brisbane ()Melbourne Tullamarine () 06:28AM AEST 08:28AM AEST 2:00
01-May-2025 B738Sydney ()Brisbane () 07:29PM AEST 08:37PM AEST 1:08
01-May-2025 B738Brisbane ()Sydney () 04:57PM AEST 06:14PM AEST 1:16
01-May-2025 B738Melbourne Tullamarine ()Brisbane () 11:17AM AEST 01:11PM AEST 1:53
01-May-2025 B738Sydney ()Melbourne Tullamarine () 08:42AM AEST 09:48AM AEST 1:06
01-May-2025 B738Gold Coast ()Sydney () 06:05AM AEST 07:09AM AEST 1:03
30-Apr-2025 B738Sydney ()Gold Coast () 08:03PM AEST 09:05PM AEST 1:01
30-Apr-2025 B738Melbourne Tullamarine ()Sydney () 05:43PM AEST 06:51PM AEST 1:08
30-Apr-2025 B738Brisbane ()Melbourne Tullamarine () 02:08PM AEST 04:15PM AEST 2:06
30-Apr-2025 B738Canberra Int'l ()Brisbane () 11:24AM AEST 12:46PM AEST 1:21
30-Apr-2025 B738Brisbane ()Canberra Int'l () 08:56AM AEST 10:21AM AEST 1:25
30-Apr-2025 B738Sydney ()Brisbane () 06:40AM AEST 07:52AM AEST 1:11
29-Apr-2025 B738Brisbane ()Sydney () 08:59PM AEST 10:07PM AEST 1:08
29-Apr-2025 B738Proserpine / Whitsunday Coast ()Brisbane () 03:14PM AEST 04:31PM AEST 1:17
29-Apr-2025 B738Brisbane ()Proserpine / Whitsunday Coast () 12:57PM AEST 02:17PM AEST 1:19
29-Apr-2025 B738Sydney ()Brisbane () 10:50AM AEST 11:56AM AEST 1:06
28-Apr-2025 B738Adelaide Int'l ()Sydney () 07:36PM ACST 09:32PM AEST 1:26
28-Apr-2025 B738Perth Int'l ()Adelaide Int'l () 01:33PM AWST 05:41PM ACST 2:38
28-Apr-2025 B738Melbourne Tullamarine ()Perth Int'l () 09:31AM AEST 11:41AM AWST 4:09
28-Apr-2025 B738Gold Coast ()Melbourne Tullamarine () 06:06AM AEST 08:04AM AEST 1:58
27-Apr-2025 B738Sydney ()Gold Coast () 06:44PM AEST 07:44PM AEST 0:59
27-Apr-2025 B738Launceston ()Sydney () 04:08PM AEST 05:39PM AEST 1:31
27-Apr-2025 B738Sydney ()Launceston () 01:36PM AEST 02:53PM AEST 1:16
27-Apr-2025 B738Brisbane ()Sydney () 11:22AM AEST 12:28PM AEST 1:06
27-Apr-2025 B738Melbourne Tullamarine ()Brisbane () 07:28AM AEST 09:22AM AEST 1:54
26-Apr-2025 B738Adelaide Int'l ()Melbourne Tullamarine () 08:55PM ACST 10:26PM AEST 1:00
26-Apr-2025 B738Hobart Int'l ()Adelaide Int'l () 06:10PM AEST 07:18PM ACST 1:37
26-Apr-2025 B738Adelaide Int'l ()Hobart Int'l () 03:01PM ACST 05:12PM AEST 1:40
26-Apr-2025 B738Melbourne Tullamarine ()Adelaide Int'l () 01:29PM AEST 01:58PM ACST 0:58
26-Apr-2025 B738Hobart Int'l ()Melbourne Tullamarine () 10:38AM AEST 11:46AM AEST 1:08
26-Apr-2025 B738Melbourne Tullamarine ()Hobart Int'l () 08:49AM AEST 09:44AM AEST 0:55
26-Apr-2025 B738Sydney ()Melbourne Tullamarine () 06:24AM AEST 07:32AM AEST 1:08
25-Apr-2025 B738Melbourne Tullamarine ()Sydney () 08:43PM AEST 09:46PM AEST 1:02
25-Apr-2025 B738Sydney ()Melbourne Tullamarine () 05:42PM AEST 07:01PM AEST 1:18
25-Apr-2025 B738Melbourne Tullamarine ()Sydney () 03:11PM AEST 04:13PM AEST 1:01
25-Apr-2025 B738Hobart Int'l ()Melbourne Tullamarine () 01:03PM AEST 02:04PM AEST 1:01
25-Apr-2025 B738Melbourne Tullamarine ()Hobart Int'l () 11:14AM AEST 12:13PM AEST 0:58
25-Apr-2025 B738Sydney ()Melbourne Tullamarine () 09:09AM AEST 10:15AM AEST 1:05
25-Apr-2025 B738Brisbane ()Sydney () 06:47AM AEST 08:06AM AEST 1:19
24-Apr-2025 B738Sydney ()Brisbane () 08:44PM AEST 09:55PM AEST 1:10
24-Apr-2025 B738Brisbane ()Sydney () 06:14PM AEST 07:23PM AEST 1:08
24-Apr-2025 B738Perth Int'l ()Brisbane () 10:57AM AWST 04:57PM AEST 3:59
23-Apr-2025 B738Sydney ()Perth Int'l () 08:56PM AEST 11:29PM AWST 4:33
23-Apr-2025 B738Melbourne Tullamarine ()Sydney () 06:10PM AEST 07:18PM AEST 1:07
23-Apr-2025 B738Perth Int'l ()Melbourne Tullamarine () 10:42AM AWST 03:52PM AEST 3:09
23-Apr-2025 B738Melbourne Tullamarine ()Perth Int'l () 07:45AM AEST 09:34AM AWST 3:48
22-Apr-2025 B738Brisbane ()Melbourne Tullamarine () 06:04PM AEST 08:06PM AEST 2:02
22-Apr-2025 B738Perth Int'l ()Brisbane () 10:43AM AWST 04:45PM AEST 4:01
22-Apr-2025 B738Melbourne Tullamarine ()Perth Int'l () 07:30AM AEST 09:10AM AWST 3:39
22-Apr-2025 B738Darwin Int'l / RAAF ()Melbourne Tullamarine () 12:55AM ACST 05:10AM AEST 3:44
21-Apr-2025 B738Melbourne Tullamarine ()Darwin Int'l / RAAF () 08:10PM AEST 11:55PM ACST 4:15
21-Apr-2025 B738Adelaide Int'l ()Melbourne Tullamarine () 04:56PM ACST 06:26PM AEST 1:00
21-Apr-2025 B738Melbourne Tullamarine ()Adelaide Int'l () 03:18PM AEST 03:48PM ACST 1:00
21-Apr-2025 B738Launceston ()Melbourne Tullamarine () 01:22PM AEST 02:15PM AEST 0:52
21-Apr-2025 B738Melbourne Tullamarine ()Launceston () 11:38AM AEST 12:28PM AEST 0:49
21-Apr-2025 B738Brisbane ()Melbourne Tullamarine () 08:08AM AEST 10:06AM AEST 1:58
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