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.)

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-2
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0answers
66 views

Case studies on the aircraft maintenance and accidents [closed]

Where can I get the case studies related to the aircraft maintenance?
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1answer
154 views

Aircraft zones - what is meant by zone 999?

There are designated zones where Positions/FINs are allocated - so components have both Part Numbers, Serial Numbers, Positions (or FINs for Airbus) and Zone classifications. Does zone ...
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0answers
26 views

EASA F1 / FAA 8130 Validity

Does anyone know if there is a set guideline / ruling for how long a EASA F1 / FAA 8130 is valid for between CRS issue of the component say from overhaul to when the component is actually fitted to ...
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1answer
6k views

How are "Owner-Produced Parts" handled under FAA regulations?

FAR 21.9 provides the ability to install parts that were "Produced by an owner or operator for maintaining or altering that owner or operator's product". This seems like a pretty broad scope of ...
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1answer
201 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 ...
7
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4answers
2k views

If the map (reading) light bulb is burned out in my own Cessna 210, what are my options if I want to fly FAR Part 91 under night-time VFR?

If the map (reading) light bulb is burned out in my own Cessna 210, what are my options if I want to fly FAR Part 91 under night-time VFR staying in the traffic pattern doing touch and goes? Can I ...
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0answers
68 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
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1answer
2k views

Are there any guidelines on airframe age and metal fatigue in light aircraft?

Are there any guidelines or rules of thumb about when airframes become affected by metal fatigue? More specifically, is something like a 1950s vintage Cessna still safe, or should I be worried about ...
4
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1answer
153 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 ...
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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?
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2answers
178 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 ...
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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 ...
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1answer
651 views

What does pre/post modification mean in Airbus MPD?

What is the difference between POST MOD (with partial mod i.e SXXXX) and PRE MOD (with partial mod) in the applicability column of an Airbus MPD (Maintenance Planning Document)?
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1answer
56 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 ...
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0answers
77 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 ...
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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?
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3answers
16k views

Can I work on my own airplane without formal mechanic's training?

Suppose I am not planning to be a career A&P mechanics, but would like to get some hands-on skills for airplane maintenance, for reasons of both cost and hobby. Say my basic goal is to perform ...
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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
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1answer
228 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 ...
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2answers
2k views

Is a 100 hour inspection required for an aircraft to be used in a checkride?

Is a 100 hour inspection required when renting an aircraft for a practical test with a DPE, to whom you are paying a fee? Lots of money is being exchanged, yet the DPE told me that it is not "For ...
4
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1answer
126 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 ...
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1answer
128 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 ...
23
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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?
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1answer
253 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 ...
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1answer
73 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 ...
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1answer
69 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....
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2answers
502 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
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1answer
89 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
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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 ...
8
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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 ...
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4answers
182 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
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2answers
142 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 ...
12
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2answers
9k views

Which aircraft maintenance repairs require a test flight?

14 CFR 91.407 requires an "Operational Check Flight" of an aircraft before passengers may be carried in certain situations: §91.407   Operation after maintenance, preventive maintenance, ...
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7answers
7k views

Why are older airplanes still in use?

It is normal to see older planes (20+ years) quite frequently. In fact, a few months ago I saw a plane over 50 years old (not in a museum but on a runway, about to take off). Comparing to cars, there ...
22
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3answers
29k views

What happens when the logbook of an aircraft is lost?

If the logbook for an aircraft is lost, how does one replace it? Is the airplane still airworthy?
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0answers
19 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 ...
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1answer
262 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 ...
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1answer
229 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, ...
12
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1answer
7k views

Does it matter in which country I obtain my EASA Part 66 AME licence?

I have completed EASA Part 66 B1.1 exam modules (some from the UK CAA and some from the German 147 organisation). My queries are: Can I apply to any member state (e.g., Belgium, The Netherlands, ...
14
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2answers
8k views

Why/How does a "Powerflow" exhaust increase horsepower?

I've seen airplanes (typically Cessna 172s) with a "Powerflow" exhaust system and then claim to get several more horsepower, resulting in faster cruise speeds. How does a Powerflow exhaust work, and ...
5
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3answers
647 views

How are leaks in door rubber seals detected?

There are few reported incident where the rubber seal on the door was damaged and it took numerous hours to find the cause and then find the location of the damage. I want to know the ways to detect ...
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2answers
167 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 ...
0
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1answer
271 views

Are you mandated to use a Fault isolation manual when clearing a defect on an aircraft?

I operate a Bombardier Dash 8 Q400. I want to know if aircraft engineers are mandated to close or rectify a defect by only following the fault isolation manual (FIM). Can an engineer instead use his ...
3
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0answers
86 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
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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 ...
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1answer
185 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, ...
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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 ...
15
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5answers
6k views

How are off-wing jet engines transported?

One of the optional services in Rolls-Royce TotalCare is "Engine Transportation" This service includes routine transportation of engines between the customer’s main base (or designated station) and ...
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0answers
55 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 ...
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2answers
1k views

What is the acceptable position of the brake wear indication for A320?

What is the acceptable position of the brake wear indication (PIN) for an A320 to be safely dispatchable?

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