Questions tagged [aircraft-maintenance]

Use this tag for questions pertaining to the maintenance of aircraft, including owner-performed maintenance and required inspections (annual, 100-hour, etc.)

Filter by
Sorted by
Tagged with
-2
votes
1answer
186 views

What can be done when the magnetic compass breaks during a cross country flight? [closed]

On United state a VFR cross country flight, after arriving you discover that the magnetic compass has leaked all of the fluid and is inoperative. The weather at airport shows a fast moving cold front ...
0
votes
0answers
65 views

What are the steps to change the map light bulb in a Cessna T182T?

T182T has "eye socket" map light. I have removed the ceiling panel and a ring that holds the whole fixture in, but I cannot access the bulb. How do I change the bulb in the map light?
4
votes
1answer
149 views

Will N1 shaft turn at the same time as N2 shaft?

For Turbo Fan Engine CFM56-7, was wondering how come the Fan blades (N1 shaft) turns when I turn the N2 Shaft manually. I thought N1 shaft is connected to the fan and booster rotor and LPT rotor and ...
0
votes
0answers
74 views

When is most of maintenance data collected

During which phase of flight is most of the maintenance data collected? Ascend, cruising or descend? Is there a website where I can find such information?
1
vote
0answers
98 views

For the purposes of complying with an AD, what exactly does "missing and/or incomplete maintenance records" mean?

I'm considering the purchase of a Piper PA-28R Arrow. I calculated the factored service hours which came up to around 2500 or half of the required FSH to make it subject to the recent Piper wing spar ...
1
vote
0answers
69 views

A320 Avionics Compartment Access Door (Seeking Photo References)

We're software developers currently working on a 3D A320 for training and we're getting quite stuck finding any suitable references of the Aviation Compartment Access Door - specifically both it's ...
1
vote
0answers
40 views

Is an aircraft maintenance diploma under EASA recognized for studying in the US?

I have a diploma certificate of aircraft maintenance engineering but I studied under EASA. So can I study and take the Bachelor degree in the USA without restarting all my study?
0
votes
2answers
64 views

Cessna 140 1946 TT [closed]

Hello I’m first time buyer airplane, I’m buying Cessna 140 1946 and it has TT 12.400 TSMOH 400 , needs anual and ADSB I’m I getting in trouble here ? Is too many hrs ? $17,000
2
votes
1answer
227 views

Is it feasible to repair a C152 that flipped onto its back?

So there's a C152 that was tied down and blew over onto its back, suffered some damage to its wings (but electric flaps still work) and significant damage to its stabilizers. Can it be fixed by ...
4
votes
1answer
117 views

If an airplane has a Vertical Speed Indicator is there a requirement that it be periodically checked for accuracy?

I believe I understand that there is no specific US FAA requirement for aircraft to carry a Vertical Speed Indicator (VSI). I believe I understand the basic operation of a VSI. It measures the rate ...
-1
votes
1answer
126 views

Starter of engine cfm56-3C

Pls ask me i really need to know this. After the engine CFM56-3C start and light up can i disconnect it's starter from it? In order to put it on onother engine for starting process?! Thank you in ...
1
vote
1answer
252 views

Can a certified mechanic ground my airplane?

The courtesy (under-wing) lighting and the rear seat overhead map light were on the same switch. I didn't like having the bright outside light on while my passenger read his magazine, so I separated ...
0
votes
1answer
69 views

How can I be US aircraft maintenance technician?

I have only an airframe-related experience of 8 years without a license, but have logbook, my US citizenship in process, and want to become an aircraft technician. How can I become a US aircraft ...
23
votes
4answers
6k views

Why would it not be OK to replace a map light bulb with an LED?

In the question about if it's OK to change your own map light, why did JScarry say "don't you dare replace [your map light] with an LED"? Or was he kidding?
2
votes
1answer
66 views

Are there specific engine TBO requirements for aircraft used in flight instruction?

If I own a plane, say a Piper arrow, and I want to charge 175/hr for the aircraft and 50/hr for instruction, is there any regulation on when to perform engine overhauls (TBO)? askacfi.com and avweb....
0
votes
1answer
88 views

On IMA systems e.g. A380 how many people are required to preform regular maintenance checks on this system?

I am aware that there is usually 1 or 2 engineers preforming maintenance checks for a particular avionic system on an aircraft at a given moment. For IMA system, is there often more engineers working ...
16
votes
1answer
3k views

What is this cylinder covered in threaded studs and what is it for?

I can't figure out what this is. It looks like each post is threaded, but why is a mystery to me. My guesses include a grounding post, a bolt/nut testing stand that's not actually in an aircraft, or ...
0
votes
4answers
169 views

Do small or regional airports have maintenance staff or companies onsite?

Do small airports or regional airports with just a couple of flights per day, maybe even from different airlines all have on-site aircraft maintenance staff? It hardly seems economical to have ...
3
votes
2answers
141 views

Where do countries under international sanctions find spare parts?

Some countries are being touched by American or European sanctions. Such sanctions affects the possibility to import spare parts for American-made or European-made aircrafts (e.g. Iranian F14 and ...
8
votes
3answers
2k views

May pilots receive compensation for performing preventive maintenance under US regulations?

Under FAA regulations, I know that at least a private pilot certificate must be held in order for a pilot to perform preventive maintenance on an aircraft. May a pilot also get paid by someone else ...
1
vote
0answers
18 views

Can the FAA 8130-3 have "modified" status if a part is converted by replacing piece-parts from IPC?

I have been trying to identify if the FAA 8130-3 Instructions have some clarity but am unable to deduce if this situation is indeed acceptable. A sequence of events (Of sorts) is given below: A Part ...
0
votes
1answer
226 views

What is the difference between a service manual and a maintenance manual?

What is the difference between service manual and maintenance manual? Because sometimes I found one, sometimes I found another, the content is similar but not the same. What are the differences and ...
1
vote
1answer
218 views

Why does part 135 require a maintenance log on board the aircraft, but part 91 does not?

During a dispute within friends, it came to my attention that in 135.65 the maintenance log copies must be present in the aircraft, and that 91.407(b) and 91.417(c) have similar rules, but, meanwhile, ...
3
votes
0answers
85 views

How does the maintenance cost of turboprops compare to turbofans?

I was initially under the impression that the added complexity of gearing in a turboprop would lead to more maintenance. Then I found out geared turbofans are becoming fairly common so there should be ...
5
votes
1answer
153 views

How can I tell if a rental aircraft has been maintained in good condition?

When I rent a Cessna (typically old) from the local airport, how concerned should I be that the plane may have been abused at some points over many years (over-load forces, hard landings, over-rev'd ...
0
votes
1answer
184 views

Where can I find maintenance manuals for the A380?

My friend recently acquired an external green light from an A380. They are the only details i have from him. I tried hunting the internet for maintenance manuals, technical details, schematics, ...
1
vote
0answers
54 views

Does the Flight Acquisition Unit on the Boeing 737 NG stream data?

I noticed on B737-800 entering the flight deck on the right side there is a port Data Loader and I think this is the Flight Acquisition Unit. Is this port used exclusively for loading data to FMCs etc ...
1
vote
0answers
82 views

How can I convert a SACAA (South Africa) AME license into a Belgium (EASA) licence?

I have a SACAA (South Africa) AME license and would like to convert it into a Belgium EASA licence part 66. What are the steps to follow?
1
vote
2answers
177 views

What information is recorded in aircraft sensor and maintenance logs?

I was wondering what the sensor and maintenance logs in an aircraft look like and what are the values logged? Like maybe the engine temperature, altitude, exhaust temperature, etc. I know the data is ...
1
vote
1answer
70 views

Factors to be considered when re-engining aircraft

What parts of the aircraft need to be adjusted / refitted / added when fitting new (different type) of engines? Also what what kind of re-certification regarding airworthiness etc. will be necessary?
1
vote
1answer
288 views

Why is “L Fuel Low” illuminating on my Cessna that is full of gas?

I fly a fuel injected Cessna 172SP 200 hp. Tanks were just about full today and every 5 seconds or so in flight, I would get “L fuel low” and the left fuel indicator would drop to 0. I’ve consulted ...
1
vote
2answers
132 views

How do I fix a slipping throttle friction lock in my C182?

The throttle friction lock in my C182 works poorly in cruise, it slowly eases out to a lower power setting. What can I do to make it better? I've attempted to turn the lock nut harder but without ...
1
vote
1answer
144 views

What is the problem if the temperature of the oil and heads of cylinders is too high?

What is the problem if the temperature of the oil and heads of cylinders is too high? What's the fault in piston engines?
0
votes
2answers
384 views

What type of BITE is involved after installing a new display on an aircraft?

There are 3 types of BITE (Built-In Test Equipment): power up interruptive continues which one of these is being used after installation of a new display on an aircraft?
2
votes
2answers
363 views

How frequently do civilian aircraft have mechanical issues to which passengers are oblivious?

I know that aircraft are pretty well built and maintained, but I am certain that while flying these aircraft also suffer from some or the other mechanical issues. I believe redundancy plays a huge ...
1
vote
2answers
163 views

Why would my electric turn coordinator suddenly stop working?

The electric Turn Coordinator in our Cardinal stopped working and we would like to understand the cause. It simply doesn't move at all, it remain fix. The red flag is not on, I have double checked the ...
2
votes
1answer
133 views

Why am I getting unusually high CHT on ground operations on one engine in a Seneca II?

Aircraft had sat for 3 months, and on startup the right engine CHT (Cylinder Head Temperature) was climbing noticeably higher than the left. After taxiing and run up CHT was near top of green. Redline ...
2
votes
0answers
79 views

Which dust size causes most damage to turbine engines?

I'm conducting some research on my bachelor's thesis on predictive maintenance and I have so far not been able to find a solution to the following question: Which size of dust is more damaging to the ...
2
votes
2answers
480 views

What are the differences between "Off/On Time", "Total AC Time", and "Offset"?

Can somebody please help explain to me the difference between all of these. I understand that "Off/On time" is probably the Hobbs time which is determined by the time my battery master ...
0
votes
1answer
55 views

Can line and light maintenance be combined?

Is there any possibility to combine line maintenance and light maintenance (containing A, B and C check) under the name of line and light maintenance? In real is there any company which possesses a ...
1
vote
1answer
122 views

How do rotor tangs lock into wheel keyways?

How do the rotor tangs lock into wheel keyways? Are there special keys on the outboard wheel half that allow locking the tangs in place? Also would be great if anyone could provide me with a image of ...
2
votes
1answer
444 views

Can an unserviceable component be fitted on a serviceable aircraft for a maintenance check?

I was doing some reading on aviation regulations and I wanted to understand from an expert whether the following situation is allowable or not. I have reviewed EASA continuing-airworthiness guidelines ...
3
votes
4answers
1k views

Why landing gears still need bungee springs?

While studying landing gear, I came across this term 'bungee spring' to which there was no definitive explanation in text with regards to its usage. So in the image, you can see for the jury strut/ ...
1
vote
1answer
425 views

What is this part on a Cessna 172 engine?

Can any one tell me what this tube with the red is? This is a photo of a 1977 Cessna 172 engine. Looks like the tube is directly connected to the top of the crankshaft.
2
votes
1answer
7k views

What does "running torque" mean?

I would like to know the meaning of the phrase and especially the meaning of "running torque": Torque the inner plug to between 75 and 85lbf.in. Loosen half a turn and RETORQUE to between 15 and ...
0
votes
2answers
212 views

Could abrupt flight controls input cause damage in these circumstances?

I went flying yesterday with a friend in my 1972 Grumman AA-5. She's a good copilot for someone who doesn't know much about flying. I showed her how you can pitch up and down, cause 0G, and float, ...
3
votes
2answers
216 views

How do I have to fold a emergency slide so it can be reused?

I have the opportunity to buy a never used emergency slide from an Airbus A320 for cheap. So I need to know how they can be reused and how to deflate and repack them so I can use it for another time.
6
votes
1answer
397 views

Why is parking brake set OFF before jacking?

I have a question about the procedure to jack the aircraft for wheel replacement. According to the manual, it required to set the Parking brake OFF before starting jacking at the Main Landing Gear. ...
2
votes
1answer
226 views

What are the process involved in tire rotation during long term storage?

During Covid-19 crisis in 2020 a lot of planes are grounded for a long time. Tires of parked planes can develop flat spot hence the need to keep these tire rotate. What are the processes involved ...
3
votes
3answers
2k views

Why did some Spitfire variants have their wings clipped?

Some Spitfire variants have clipped wingtips instead of the round, elliptical wingtip. The reason for this is to increase the roll rate and low-altitude performance. My question is: How would clipping ...

1
2 3 4 5
9