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Search: Posts Made By: Danial9874
Showing results 1 to 35 of 40
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Forum: Engineers & Technicians
24th May 2023, 11:57
Replies: 3
Views: 1,229
Posted By Danial9874

Why aircraft used 115v ac 400 hz

Hello, Why aircraft used 115v ac 400 hz while household use 240v 50hz
Does anyone know why aircraft use 400hz but not 50hz?

​​​​​​​Thanks
Forum: Engineers & Technicians
2nd Mar 2023, 13:56
Replies: 1
Views: 349
Posted By Danial9874

JAA and EASA

Hi guys,
I am very confused after reading about JAA and EASA.

From what I read, so currently there is no more JAA, and EASA had taken over JAA and EASA is the national authority for european...
Forum: Engineers & Technicians
26th Feb 2023, 14:26
Replies: 5
Views: 1,218
Posted By Danial9874

CAMO and Technical Services

Hi guys,
nowday all the tasks related to continuing airworthiness was oversee by CAMO
Do we still need Technical Services ?
is technical service the same thing as CAMO ?
​​​​
Forum: Engineers & Technicians
26th Feb 2023, 14:24
Replies: 3
Views: 647
Posted By Danial9874

Maintenance Operation Control (MOC)

What is a Maintenance Operation Control mocWhat does it do ?
to oversees maintenance related to aircraft?

Thanks
Forum: Engineers & Technicians
23rd Feb 2023, 14:56
Replies: 5
Views: 1,218
Posted By Danial9874

Maybe zero stress in term of jacking the aircraft...

Maybe zero stress in term of jacking the aircraft for major structure repair ?
Forum: Engineers & Technicians
23rd Feb 2023, 01:43
Replies: 5
Views: 1,218
Posted By Danial9874

Aircraft Zero Stress

What is actually Aircraft Zero Stress ?
I think that no stress acting on aircraft is kind of impossible
​​​​​​Is there really such thing as aircraft zero stress ?
Forum: Engineers & Technicians
23rd Feb 2023, 01:39
Replies: 4
Views: 832
Posted By Danial9874

Placard, Marking and Decal

Hi guys,
What is the different between placard marking and decalIs there any reference documents that list out their main different ?
Forum: Engineers & Technicians
22nd Feb 2023, 15:02
Replies: 2
Views: 454
Posted By Danial9874

MEL 'O' and 'M' operation

Hi guys what is the different between MEL O and M procedures ?There is O procedures and M procedures in MEL
O procedure stands for specific operation procedureWhile M procedures stands for specific...
Forum: Engineers & Technicians
19th Feb 2023, 07:12
Replies: 0
Views: 635
Posted By Danial9874

TSO and PMA

What is the different between TSO and PMA ?

From this articles https://sassofia.com/blog/bi-lateral-treatment-of-faa-tso-uk-caa-uktso-articles-pma/ , it state that
TSO is a minimum performance...
Forum: Engineers & Technicians
19th Feb 2023, 07:01
Replies: 1
Views: 602
Posted By Danial9874

RNAV vs. RNP

Hi guys,
What is the different between RNAV and RNP?
Forum: Engineers & Technicians
19th Feb 2023, 06:34
Replies: 1
Views: 367
Posted By Danial9874

Grrr Mor and in service difficulty report (isdr)

Hi guys,
what is the different between MOR (Mandatory Occurrence Report) and (ISDR) IN SERVICE DIFFICULTY REPORT?
Forum: Engineers & Technicians
19th Feb 2023, 06:23
Replies: 1
Views: 346
Posted By Danial9874

Unhappy Airworthiness Code

Hi guys,
just wondering what is actually airworthiness code ?
I am a little bit confused when I googled airworthiness code
Airworthiness code is Part 21, Part 145, Part 147 ? or it was CS23,...
Forum: Engineers & Technicians
26th Jul 2022, 14:54
Replies: 1
Views: 720
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...
Forum: Engineers & Technicians
24th Jul 2022, 03:38
Replies: 2
Views: 669
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...
Forum: Engineers & Technicians
7th Sep 2020, 12:01
Replies: 4
Views: 2,011
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
Forum: Engineers & Technicians
10th Aug 2020, 08:55
Replies: 1
Views: 791
Posted By Danial9874

oven in the aircraft

Guys
How many different type of oven is used on the aircraft ?
Forum: Engineers & Technicians
23rd Jul 2020, 02:56
Replies: 1
Views: 592
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...
Forum: Engineers & Technicians
20th Jul 2020, 15:16
Replies: 1
Views: 493
Posted By Danial9874

APU brushless starter motor

Hi
APU are using brush starter motor
why we cannot change the motor to brushless type ?
Forum: Engineers & Technicians
16th Jul 2020, 05:24
Replies: 3
Views: 634
Posted By Danial9874

Brush type generator

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

thank you
Forum: Engineers & Technicians
10th Jul 2020, 09:41
Replies: 2
Views: 581
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...
Forum: Engineers & Technicians
9th Jul 2020, 15:43
Replies: 1
Views: 516
Posted By Danial9874

Autogain in PA system

What is autogain in passenger address system ?
When do we use autogain ?
is there any gain test ?
Forum: Engineers & Technicians
21st Jun 2020, 19:15
Replies: 2
Views: 1,570
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
Forum: Engineers & Technicians
21st Jun 2020, 19:12
Replies: 1
Views: 823
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 ?
Forum: Engineers & Technicians
21st Feb 2020, 15:52
Replies: 1
Views: 728
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...
Forum: Engineers & Technicians
4th Feb 2020, 05:37
Replies: 0
Views: 639
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?
Forum: Engineers & Technicians
17th Dec 2019, 17:07
Replies: 2
Views: 1,606
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
...
Forum: Engineers & Technicians
16th Dec 2019, 10:31
Replies: 1
Views: 912
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...
Forum: Engineers & Technicians
15th Dec 2019, 12:45
Replies: 1
Views: 574
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.
Forum: Engineers & Technicians
13th Dec 2019, 10:28
Replies: 1
Views: 626
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.
Forum: Engineers & Technicians
24th Oct 2019, 14:01
Replies: 1
Views: 708
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
Forum: Engineers & Technicians
22nd Oct 2019, 05:53
Replies: 12
Views: 3,437
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
Forum: Engineers & Technicians
18th Oct 2019, 17:27
Replies: 12
Views: 3,437
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
Forum: Engineers & Technicians
8th Oct 2019, 11:50
Replies: 2
Views: 2,943
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
Forum: Engineers & Technicians
24th Jul 2019, 05:30
Replies: 6
Views: 3,527
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?
Forum: Engineers & Technicians
16th Jul 2019, 13:57
Replies: 3
Views: 2,650
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
Showing results 1 to 35 of 40
 
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