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Search: Posts Made By: aaa0808
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Forum: Tech Log
21st Mar 2016, 03:39
Replies: 22
Views: 6,982
Posted By aaa0808

Yeah. Well that's because in MEL 36-08, the inop...

Yeah. Well that's because in MEL 36-08, the inop component is the light and not the valve. So we know that if we put the bleed switch to OFF, then the valve will be closed since this time there are...
Forum: Tech Log
18th Mar 2016, 04:33
Replies: 22
Views: 6,982
Posted By aaa0808

It is as explained above that the left pack...

It is as explained above that the left pack provides air to the electronics bay where temperature control is crucial. So it is always prioritised whenever the conditions allow.
Forum: Tech Log
16th Mar 2016, 11:35
Replies: 22
Views: 6,982
Posted By aaa0808

Nil further No. Because we still need bleed for...

Nil further
No. Because we still need bleed for anti-ice and other operations on that side, even if the pack on that side is not working. So we keep the bleed ON. But just ensure that the isolation...
Forum: Tech Log
16th Mar 2016, 07:00
Replies: 22
Views: 6,982
Posted By aaa0808

Before dispatch with one PRSOV inop, that valve...

Before dispatch with one PRSOV inop, that valve is secured closed by the maintenance engineers. On the other hand, if it fails in flight, there is no sure way of knowing that it will stay closed...
Forum: Tech Log
22nd Feb 2016, 03:30
Replies: 9
Views: 1,877
Posted By aaa0808

In 737, ACMs use the bleed air for air...

In 737, ACMs use the bleed air for air conditioning and pressurisation. Some aircrafts do use Ram air ventilation, but not 737 NGs.
Forum: Tech Log
22nd Feb 2016, 02:25
Replies: 9
Views: 1,877
Posted By aaa0808

This is as per the AMM: "The normal position...

This is as per the AMM:

"The normal position for the ram air inlet modulation panel in flight with the flaps up is faired (closed). This is to decrease drag."
Forum: Tech Log
19th Feb 2016, 09:47
Replies: 9
Views: 1,877
Posted By aaa0808

That is absolutely true. But if the compression...

That is absolutely true. But if the compression had not increased the temperature of the air, we might not have had to use a second heat exchanger in the first place.
Some of the energy spent by the...
Forum: Tech Log
19th Feb 2016, 03:35
Replies: 9
Views: 1,877
Posted By aaa0808

Increasing the heat is not the purpose of the...

Increasing the heat is not the purpose of the compressor rather it is a slightly undesirable by-product of compression. Now compression is what we absolutely need so that the turbine can function...
Forum: Tech Log
12th Feb 2016, 05:25
Replies: 3
Views: 1,443
Posted By aaa0808

No, it will not. The speed trim system fixes the...

No, it will not. The speed trim system fixes the stick-force/g so as to bring it above a minimum value. So in high lift conditions, it will increase the stick-force/g so that the pilot has to pull...
Forum: Tech Log
12th Feb 2016, 03:05
Replies: 24
Views: 14,017
Posted By aaa0808

Grounded27- I agree that extension can be done by...

Grounded27- I agree that extension can be done by gravity alone as well and is done during non-normal conditions.
But that doesnt give us any control over the movement of the gear and might lead to...
Forum: Tech Log
10th Feb 2016, 02:42
Replies: 6
Views: 3,650
Posted By aaa0808

This is because as we go to higher altitudes, the...

This is because as we go to higher altitudes, the density of air decreases and so the engines will have to work a lot more amount than usual to cater to the bleed air requirement for anti-ice...
Forum: Tech Log
5th Feb 2016, 02:40
Replies: 24
Views: 14,017
Posted By aaa0808

Thanks Machinbird for the explanation. 20% of...

Thanks Machinbird for the explanation. 20% of reservoir A quantity is about 4.3 litres which can easily be displaced by the piston rod in all three hydraulic actuators (uplock, downlock and MLG...
Forum: Tech Log
2nd Feb 2016, 09:32
Replies: 24
Views: 14,017
Posted By aaa0808

By retraction jacks, do you mean uplock actuators?

By retraction jacks, do you mean uplock actuators?
Forum: Tech Log
2nd Feb 2016, 08:53
Replies: 24
Views: 14,017
Posted By aaa0808

737-800: Change in hydraulic reservoir quantity on landing gear retraction

Retraction of the landing gear causes roughly 20% drop in indicated system A reservoir quantity in 737-800. And stays so throughout the flight even after putting the landing gear lever to OFF...
Forum: Questions
15th Oct 2015, 10:04
Replies: 3
Views: 5,136
Posted By aaa0808

But if you look at the picture of the POS REF...

But if you look at the picture of the POS REF page on the Boeing website at Navigation (http://www.b737.org.uk/navigation.htm) , it shows the FMC position different from the one given by the GPS.
I...
Forum: Questions
15th Oct 2015, 06:34
Replies: 3
Views: 5,136
Posted By aaa0808

FMC position calculation and logic for primary GPS update

I have 2 questions

1) How does the FMC calculate the position using GPS, IRS and Radio? It certainly is not calculated based on GPS or IRS alone. So what is the 'weight' of each of them in the...
Forum: Questions
12th Oct 2015, 09:42
Replies: 2
Views: 13,403
Posted By aaa0808

Meaning of GL and WL in aircraft models

Hi everyone! Can someone please tell me what does the GL or WL stand for in the model no. of the aircraft? As in 737-7GL(WL).
Showing results 1 to 17 of 17


 
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