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26th Jul 2022, 15:54
Replies: 1
Views: 359
Posted By Danial9874

Battery

Hi guys,
For smaller aircraft that do not have APU usually uses battery/ GPU to start the engine
I am curious that how many times can we start the aircraft engine with battery ?
Or how long can...
24th Jul 2022, 04:38
Replies: 2
Views: 452
Posted By Danial9874

Emergency Power Supply Unit

Hi guys,
I know that airbus have emergency power supply units (EPSU) to supply the emergency light system of aircraft incase if aircraft power supply breakdown but I am wondering if boeing have EPSU...
7th Sep 2020, 13:01
Replies: 4
Views: 1,367
Posted By Danial9874

VOR/LOC Antenna

Helo guys

Vor operates at frequency range of 108-117.95Mhz
Localizer operates at frequency range of 108-111.95Mhz
why they can't share the same antenna
10th Aug 2020, 09:55
Replies: 1
Views: 746
Posted By Danial9874

oven in the aircraft

Guys
How many different type of oven is used on the aircraft ?
23rd Jul 2020, 03:56
Replies: 1
Views: 490
Posted By Danial9874

Engine Thermocouple

Thermocouple in engine works by hot and cold junction
the hot junction will be located at the engine
where will the cold junction be in large aircraft ?
I am sure cold junction will not located...
20th Jul 2020, 16:16
Replies: 1
Views: 389
Posted By Danial9874

APU brushless starter motor

Hi
APU are using brush starter motor
why we cannot change the motor to brushless type ?
16th Jul 2020, 06:24
Replies: 3
Views: 493
Posted By Danial9874

Brush type generator

Hi
Nowday aircraft use brushless type generator
why is A320 apu stil using brush type generator ?

thank you
10th Jul 2020, 10:41
Replies: 2
Views: 476
Posted By Danial9874

AMBIENT NOISE SENSOR

Helo

B737 uses low pressure switch to increase pax cabin speaker approx 6dBs when engine is running
Is there any aircraft that use Ambient noise sensor to automatically increase sound level of...
9th Jul 2020, 16:43
Replies: 1
Views: 425
Posted By Danial9874

Autogain in PA system

What is autogain in passenger address system ?
When do we use autogain ?
is there any gain test ?
21st Jun 2020, 20:15
Replies: 2
Views: 871
Posted By Danial9874

Galley Numbering

Hi
What is galley numbering ?
Where does it count from ?
Is it from forward r/h to aft r/h to aft l/h to fwd l/h
21st Jun 2020, 20:12
Replies: 1
Views: 641
Posted By Danial9874

Aircraft Beverage Maker

Hi
Do anyone know how the aircraft beverage makers work ?
Why do we need beverage maker when there is boiler ?
21st Feb 2020, 16:52
Replies: 1
Views: 616
Posted By Danial9874

Aircraft Alternator

Hi all,
There are brush alternator and brushless alternator
But since brushless alternator has more advantage than brush alternator
( no wear brush)
why we still use brush alternator in some...
4th Feb 2020, 06:37
Replies: 0
Views: 555
Posted By Danial9874

IRS Alignment

Why is alignment of IRS in high latitude takes longer time than alignment in normal latitude ?
what is the difference between normal and high latitude alignment?
17th Dec 2019, 18:07
Replies: 2
Views: 1,159
Posted By Danial9874

Compensator in Fuel tank

Compensator is used in fuel tank to measure the dielectric constant for fuel ( as temperature changes the density of fuel changes )
But how the compensator actually measure the fuel density
...
16th Dec 2019, 11:31
Replies: 1
Views: 574
Posted By Danial9874

Refuelling Cut off Valve

Hi
I am curious how the refuelling valve auto cut off when the fuel is fully filled in the fuel tank
Example : If now the aircraft fuel tank contain 20 degree celcius of fuel inside the tank
The...
15th Dec 2019, 13:45
Replies: 1
Views: 533
Posted By Danial9874

Densitometer

Hi ,
Densitometer is used to measure the density of the fuel
But how does the densitometer sense the density of fuel ?
Thank you.
13th Dec 2019, 11:28
Replies: 1
Views: 524
Posted By Danial9874

Calibration of Fuel tank probe

Hi guys
How do you normally calibrate fuel tank probe
Have anyone done calibration of fuel tank probe on A320
How is the calibration process

thank you.
24th Oct 2019, 15:01
Replies: 1
Views: 626
Posted By Danial9874

A320 Fuel Probe Capacitance Calibration

Hello

Does anyone calibrate a a320 fuel probe capacitance before
I already gone through the manual under chapter 28 but i could not find any procedure regarding to that

Thank you
22nd Oct 2019, 06:53
Replies: 12
Views: 2,566
Posted By Danial9874

One more question guys how do you all know the...

One more question guys
how do you all know the aircraft is magnetized
without a gaussmeter
thank you for all those reply
18th Oct 2019, 18:27
Replies: 12
Views: 2,566
Posted By Danial9874

Magnetized of Aircraft

Hi all,

Does anyone heard about magnetized of aircraft ?
but what causes magnetizing of aircraft ?
how it would affect the aircraft
and how to demagnetize the aircraft?
Thank you so much
8th Oct 2019, 12:50
Replies: 2
Views: 2,392
Posted By Danial9874

Bussing Plug

Had anyone heard about bussing plug before ( use in fuel quantity indicating system for 737 )
how does it look like
and what is the function of the bussing plug
thank you
24th Jul 2019, 06:30
Replies: 6
Views: 3,245
Posted By Danial9874

Underwing Sight Gauge for Fuel quantity indication

Hi guys
do you guys heard about underwing sight gage before
how does it operate?
16th Jul 2019, 14:57
Replies: 3
Views: 2,501
Posted By Danial9874

Fuel Quantity stick - Clear LUCITE plastic rod

Hi guys, just curious
is clear LUCITE plastic rod stil use to measure fuel quantity in aircraft?
how the lucite plastic rod operate ?
how does it give reading ?
Thank you so much
16th Jun 2019, 03:35
Replies: 2
Views: 3,092
Posted By Danial9874

Metal encased LRU on Aircraft

Hi guys just curious
what type of metal is use to encase LRU ?
why must metal be use to encase LRU
is the function of the metal to Ground the LRU ?
14th Jun 2019, 15:50
Replies: 1
Views: 1,219
Posted By Danial9874

Carbon Dioxide Fire Extinguisher

Hi guys
I m curious wh​​​y carbon dioxide fire extinguisher is not suitable to be use on aircraft ?
14th Apr 2019, 08:00
Replies: 7
Views: 2,883
Posted By Danial9874

But is there a all purpose resistor that can...

But is there a all purpose resistor that can discharge any capacitor no matter how much is it resistance ?
13th Apr 2019, 09:44
Replies: 7
Views: 2,883
Posted By Danial9874

Value of Resistor to discharge a capacitor

Hello ,

To discharge a capacitor we normally use resistor
But what is the normal value of resistor to discharge the capacitor ( NO MATTER HOW MUCH IS THE CAPACITANCE )
Can anyone verify this...
13th Apr 2019, 09:39
Replies: 1
Views: 1,162
Posted By Danial9874

A320/b777 cargo compartment light control switch

Hi everyone,I am studying my diploma in aircraft maintenance at the moment and my instructor recently asked me a question

There is a ON/OFF switch on cockpit overhead panel to control the light of...
Showing results 1 to 28 of 28


 
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