Search found 8162 matches

by fr8mech
Wed Mar 10, 2021 12:20 pm
Forum: Non-Aviation
Topic: COVID Health Department Follow-Ups
Replies: 16
Views: 978

Re: COVID Health Department Follow-Ups

Why did you bother getting tested in the first place? Does it really matter? This wasn’t my first test. I’ve been tested in the past due to exposure and due to travel. My employer, and the kids’ schools have asked that family members be tested, or the kids stay home if there has been out-of-state t...

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by fr8mech
Wed Mar 10, 2021 2:09 am
Forum: Non-Aviation
Topic: COVID Health Department Follow-Ups
Replies: 16
Views: 978

Re: COVID Health Department Follow-Ups

It seems tedious to you as your answers are known, but for data analysis the issue is in the anomalies. Maybe someone else breaks isolation. Maybe they got the vaccine Maybe they spread the disease. Maybe someone who had the vaccine got sick again ( is vaccine as effective as Moderna/Pfizer say). H...

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by fr8mech
Tue Mar 09, 2021 7:25 pm
Forum: Non-Aviation
Topic: COVID Health Department Follow-Ups
Replies: 16
Views: 978

Re: COVID Health Department Follow-Ups

Translates to something like "do pointless actions but make it look like something is being done". At work we call it “making visual progress”. We'll push an aircraft out if the hangar before it’s done and finish it up outside just to make it look like progress has been made. That’s all t...

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by fr8mech
Mon Mar 08, 2021 9:36 pm
Forum: Non-Aviation
Topic: COVID Health Department Follow-Ups
Replies: 16
Views: 978

COVID Health Department Follow-Ups

So, I’m COVID positive with symptoms. So is my daughter. Wife and son are positive but asymptomatic. I was the first positive, but I think it was my daughter that brought it home. Regardless, the day after I tested positive on the rapid test, I received a phone call from the health department provid...

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by fr8mech
Fri Mar 05, 2021 7:48 pm
Forum: Technical/Operations
Topic: Can the IRS be aligned in an hangar?
Replies: 7
Views: 1422

Re: Can the IRS be aligned in an hangar?

If so, what can't be done in hangar other than starting up the engines? I heard WX radar is also harmful to people around when used in closed spaces. Yes, you can align the IRUs. Yes, you can put the RADAR in test. The transmitter operates for less than a second. The rest of the test basically test...

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by fr8mech
Sat Feb 27, 2021 5:00 pm
Forum: Technical/Operations
Topic: Ligthning Strikes.
Replies: 12
Views: 2479

Re: Ligthning Strikes.

It seems to me that our MD10's, MD11's and B767's do not have as many strikes as our B757's which seem to be a magnet for lightning strikes. Any thoughts? Gregory My experience is the opposite. In the spring, it seems there’s an MD-11 or a B767 out of service somewhere in our system for a lightning...

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by fr8mech
Thu Feb 25, 2021 10:10 pm
Forum: Technical/Operations
Topic: Cargo Pilots Dropped Off At Passenger Terminal
Replies: 16
Views: 2130

Re: Cargo Pilots Dropped Off At Passenger Terminal

When I was a flight mechanic with Evergreen, we’d frequently make tech or fuel stops. They’d often park us as a gate, since it was probably more convenient than a hardstand.

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by fr8mech
Fri Feb 19, 2021 1:56 am
Forum: Technical/Operations
Topic: Is it true that when flying air pressure won't allow the cabin door to open?
Replies: 22
Views: 3064

Re: Is it true that when flying air pressure won't allow the cabin door to open?

n92r03 wrote:
On the L-1011, I seem to remember the door sliding vertical, up into the ceiling. Am I way off base here or was that the case? Last flight on one was ~1995, DL, LAX-SAN.


Yes, as they do on the DC10/MD11 & the B767. The doors still move in before they move up.

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by fr8mech
Wed Feb 17, 2021 1:22 am
Forum: Technical/Operations
Topic: How do passenger windows get so scratched up?
Replies: 7
Views: 1976

Re: How do passenger windows get so scratched up?

Crazing is common.

Environmental conditions can also cause mechanical damage. Age/UV damage. Cleaning crews.

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by fr8mech
Tue Feb 16, 2021 8:13 pm
Forum: Technical/Operations
Topic: Do ground vehicles in airports run on jet fuel or regular diesel?
Replies: 31
Views: 3794

Re: Do ground vehicles in airports run on jet fuel or regular diesel?

Isn’t military Jet fuel basically the same thing? Just with a lower freeze point? I mean, military jets use Jet A when they come into a civilian field for refuel. Anecdotally, back in the early 90’s, as Desert Shield/Desert Storm were spinning up, and our Jumbos were operating more and more CRAF mi...

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by fr8mech
Mon Feb 15, 2021 2:59 pm
Forum: Technical/Operations
Topic: Do ground vehicles in airports run on jet fuel or regular diesel?
Replies: 31
Views: 3794

Re: Do ground vehicles in airports run on jet fuel or regular diesel?

At previous operators, we would use sump fuel in our GPU’s and air starts. Now, sump fuel is taken away by Plant Engineering. I’ve no clue what they do with it.

Can the equipment run on it? Yes. Is it ‘safe’ to do so? I’ve no clue, I’m not a diesel mechanic.

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by fr8mech
Mon Feb 15, 2021 2:57 pm
Forum: Technical/Operations
Topic: Powering systems inside a hangar
Replies: 14
Views: 1664

Re: Powering systems inside a hangar

Just a quick add-on question. For aircraft to be powered up - do you need to switch battery on, or will external power completely do the trick? I could imagine some sort of protection on the battery circuit preventing that, but Bat/GPU running parallel with switch on each seems a simpler solution. ...

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by fr8mech
Tue Feb 02, 2021 9:04 pm
Forum: Technical/Operations
Topic: Average number of cycles for aircraft tyres ? Who are the main suppliers ?
Replies: 20
Views: 3757

Re: Average number of cycles for aircraft tyres ? Who are the main suppliers ?

Most AMMs will have both nose wheel tires changed at a time, it’s not just for ease of work. I’ve worked most Boeing’s, a Douglas or two, and some Airbus...even a Lockheed, and I don’t I’ve ever seen a recommendation to replace both nose wheel assemblies. Yes, I have seen a comparison check in resp...

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by fr8mech
Fri Jan 29, 2021 9:04 pm
Forum: Technical/Operations
Topic: Refueling wide bodies
Replies: 31
Views: 4786

Re: Refueling wide bodies

Along the same lines, do airlines strategically shop around for fuel at airports/states/countries with lower prices? Major airlines have people...really software, now, I guess, whose job it is to decide whether it’s more cost efficient...or sometimes, schedule/marketing efficient, to tanker fuel th...

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by fr8mech
Fri Jan 29, 2021 8:33 pm
Forum: Technical/Operations
Topic: Saudia Flight 163 HZ-AHK Accident Analysis
Replies: 34
Views: 3428

Re: Saudia Flight 163 HZ-AHK Accident Analysis

You know why I watch Netflix or why I watch a series on other services after the season has ended, rather than watching on broadcast TV? Because I like to watch The whole season drop at once, not piece-meal. Please get to the point, or don’t. It doesn’t matter anymore. You’ve lost my interest...like...

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by fr8mech
Wed Jan 27, 2021 9:12 pm
Forum: Technical/Operations
Topic: Average number of cycles for aircraft tyres ? Who are the main suppliers ?
Replies: 20
Views: 3757

Re: Average number of cycles for aircraft tyres ? Who are the main suppliers ?

Do they require tire rotation and balancing like a regular car? Rotated? No. Balanced at buildup. I looked at our jumbos a while ago, and I seem to recall between 70 & 80 cycles for the body gear and 100 - 120 for the wing. Can’t recall if I looked at the nose. We had an aircraft eating tires i...

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by fr8mech
Sun Jan 17, 2021 11:20 pm
Forum: Technical/Operations
Topic: Boeing 737 Engine Bleed Precooler System Defiency
Replies: 5
Views: 1230

Re: Boeing 737 Engine Bleed Precooler System Defiency

if the defective situation is unknown , lower efficiency is acceptable and safe. But if the defective situation is noticed , lower efficiency unacceptable and unsafe, and the airplane must fly with restriction according MEL. Is there no contradiction in this? Not at all. That’s why we have schedule...

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by fr8mech
Thu Jan 14, 2021 1:31 am
Forum: Technical/Operations
Topic: Why are preflight walk-arounds done by pilots and not ground personnel?
Replies: 38
Views: 4630

Re: Why are preflight walk-arounds done by pilots and not ground personnel?

HAWK21M wrote:
Engineering Personnell carry out a Transit Check Inspection which is a more detailed check.


That all depends on the operator. What would be considered our Transit Check basically mimics the flight crew walk-around and has very few flight deck tasks.

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by fr8mech
Thu Jan 07, 2021 1:34 am
Forum: Technical/Operations
Topic: Why are preflight walk-arounds done by pilots and not ground personnel?
Replies: 38
Views: 4630

Re: Why are preflight walk-arounds done by pilots and not ground personnel?

Starlionblue wrote:
No way you're going to know that for 10 types from memory.


Maintenance does. ;)

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by fr8mech
Wed Jan 06, 2021 10:33 pm
Forum: Technical/Operations
Topic: Why are preflight walk-arounds done by pilots and not ground personnel?
Replies: 38
Views: 4630

Re: Why are preflight walk-arounds done by pilots and not ground personnel?

Aviation is a trust but verify environment. There is no way for a flight crew to know that everything done on the aircraft has been done properly, but they trust the maintenance folks to do their job properly. The flight crews perform verification tasks...the walk around, the preflight checks, to en...

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by fr8mech
Sun Jan 03, 2021 12:50 pm
Forum: Technical/Operations
Topic: How do airlines manage maintenance inspections at the spokes?
Replies: 24
Views: 3138

Re: How do airlines manage maintenance inspections at the spokes?

It’ll depend on the operator. We have maintenance just about anywhere we fly an aircraft, if it spends more than a couple of hours in the ground. One mechanic, maybe a part-timer to back him up. But, they’re there. We typically use contract maintenance at through stations, and they are only required...

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by fr8mech
Sat Jan 02, 2021 8:25 am
Forum: Non-Aviation
Topic: Wet shaving tips
Replies: 40
Views: 2381

Re: Wet shaving tips

http://www.amazon.com/gp/product/B00I5S ... UTF8&psc=1
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Max Q wrote:

Incidentally what do people trim their nose hair with ?!


I use these:

http://www.amazon.com/gp/product/B00I5S ... UTF8&psc=1

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by fr8mech
Sat Jan 02, 2021 2:43 am
Forum: Non-Aviation
Topic: Open bridges on older destroyers
Replies: 4
Views: 848

Re: Open bridges on older destroyers

My suspicion is that it's because the main sensor on a ship of that era was the Mark 1 Eyeball. Communications between stations would have been via tube, nothing electronic. So an open bridge provided a 360 degree view for the bridge officers and any lookouts posted.

Just a guess.

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by fr8mech
Thu Dec 31, 2020 10:52 am
Forum: Non-Aviation
Topic: What is intelligence?
Replies: 15
Views: 1421

Re: What is intelligence?

Intelligence is the capacity to learn.

In my experience has nothing to do with the capacity to exercise common sense.

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by fr8mech
Thu Dec 31, 2020 2:56 am
Forum: Non-Aviation
Topic: Wet shaving tips
Replies: 40
Views: 2381

Re: Wet shaving tips

I use Harry's Razors...have for years. I love them. I shave in the shower, and I echo the 2 pass method. I no longer have to shave my neck, so it takes me about 2 minutes to shave.

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by fr8mech
Mon Dec 21, 2020 12:39 pm
Forum: Technical/Operations
Topic: Do cargoliners have locked cockpit doors? Or cockpit doors for that matter?
Replies: 26
Views: 3738

Re: Do cargoliners have locked cockpit doors? Or cockpit doors for that matter?

In case of smoke emanating from the main cargo deck due to fire, wouldn't you want a door in between to keep the smoke out as long as possible? I recall reading in one of the older threads that the cockpits have a positive air pressure (the exact technical term escapes me now) compared to the cabin...

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by fr8mech
Sat Dec 19, 2020 8:01 pm
Forum: Non-Aviation
Topic: Everyone's worst type of hangover
Replies: 31
Views: 1780

Re: Everyone's worst type of hangover

The old, disproven adage, of ‘beer before liquor, never been sicker’ holds true for me. If I start with beer, I never go to booze. If I start with booze, I can drink beer without I’ll effects, though I won’t return to booze. ‘Sicker’, in this case, does not mean puking, it means a nasty headache, re...

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by fr8mech
Tue Dec 15, 2020 8:20 pm
Forum: Technical/Operations
Topic: 747 passenger window identification
Replies: 6
Views: 1622

Re: 747 passenger window identification

While, I doubt anyone could tell what aircraft it was on, a part number on a stringer or frame might tell you the approximate station that particular section was installed.

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by fr8mech
Mon Dec 14, 2020 11:52 pm
Forum: Technical/Operations
Topic: Master of Maintenance
Replies: 3
Views: 2083

Re: Master of Maintenance

Experience comes from doing.

Knowledge comes from training and watching.

An axiom of aircraft maintenance is that your license is a license to learn.

I understand that the military doesn’t have an A&P license, but the statement still applies.

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by fr8mech
Fri Nov 27, 2020 2:58 pm
Forum: Technical/Operations
Topic: Airframe scrapping question .. rectangular cutouts?
Replies: 4
Views: 1366

Re: Airframe scrapping question .. rectangular cutouts?

When you see big pieces cut out that way, it tends to mean someone wanted those sections intact to effect a major repair on one of their airframes. If the paperwork is traceable, and the necessary sections in good shape, then you’re good to go. For the doors, it’s much easier to cutout an oversized ...

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by fr8mech
Sun Nov 22, 2020 5:42 pm
Forum: Technical/Operations
Topic: Why not put some fire extinguisher foam on the ground?
Replies: 25
Views: 3637

Re: Why not put some fire extinguisher foam on the ground?

2) why not put some foam on the ground, or water, before the airplane lands so the landing gear doesn't catch on fire? The only thing that can easily exit the aircraft and burn are fuel and hydraulic fluid. Metal can spark but does not burn. Tyres can burn but it takes a lot of effort. Certain meta...

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by fr8mech
Wed Nov 11, 2020 7:47 pm
Forum: Technical/Operations
Topic: Where is the engine run-up area on LAX located?
Replies: 5
Views: 1672

Re: Where is the engine run-up area on LAX located?

The blast pad is the area before the beginning of the runway and the term is to differentiate it from a displaced threshold. 30+ in the industry and I’ve never heard that area referred that way. Always something new to learn in the industry. The only time I did run-ups in/on a designated run-up pad...

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by fr8mech
Tue Nov 10, 2020 9:26 pm
Forum: Technical/Operations
Topic: Where is the engine run-up area on LAX located?
Replies: 5
Views: 1672

Re: Where is the engine run-up area on LAX located?

https://aeronav.faa.gov/d-tpp/2012/00237AD.PDF

You can see that the areas north of A & B1 are labeled as “Blast Pads”.
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Looking at this Jep:

https://aeronav.faa.gov/d-tpp/2012/00237AD.PDF

You can see that the areas north of A & B1 are labeled as “Blast Pads”.

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by fr8mech
Tue Nov 03, 2020 3:10 am
Forum: Technical/Operations
Topic: C919- purple splotch on the flaps?
Replies: 10
Views: 2135

Re: C919- purple splotch on the flaps?

Well, that appears to be Skydrol purple. That’s hydraulic fluid, but it’s that color when it’s new and fresh. But, that’s a very strange presentation for a leak.

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by fr8mech
Mon Nov 02, 2020 11:13 pm
Forum: Non-Aviation
Topic: Terror attack in Vienna
Replies: 25
Views: 1502

Re: Terror attack in Vienna

What did the West do to Muslims to cause such anger? I've been STRUGGLING to understand this since 9/11. You’re asking the wrong question. Your question is laying blame on the victims. You’re question is analogous to asking what a woman was doing wrong that got her raped. The question that needs to...

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by fr8mech
Sun Nov 01, 2020 10:08 pm
Forum: Non-Aviation
Topic: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?
Replies: 133
Views: 7144

Re: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?

Now its possible what I was taught was wrong, but I was also told in school that the system also made it easier to get a results as, some remote areas could have a hard time getting votes reported but that for the national level those results may not be required to determine who gets the electoral ...

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by fr8mech
Sun Nov 01, 2020 9:58 pm
Forum: Non-Aviation
Topic: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?
Replies: 133
Views: 7144

Re: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?

bennett123 wrote:
Why did they set up the Electoral College in the first place?.


Because The Founders felt that densely populated areas would have too much power in a national election.

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by fr8mech
Sun Nov 01, 2020 9:44 pm
Forum: Non-Aviation
Topic: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?
Replies: 133
Views: 7144

Re: Why US Presidential Election Results Are Determined By Electoral College And Not Popular Votes?

Short answer: The Founders realized that densely populated areas could heavily skew a national election. The Electoral College brings some parity to the system. For a detailed answer, just ask the Google machine. I’m sure there has been more written about the Electoral College than you would care to...

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by fr8mech
Thu Oct 29, 2020 2:42 pm
Forum: Technical/Operations
Topic: Are cargo doors of passenger aircraft operated from the outside?
Replies: 11
Views: 2526

Re: Are cargo doors of passenger aircraft operated from the outside?

unimproved wrote:
And on Boeing it's a mechanical receptacle. Takes about 10 minutes to open with a power drill but if you follow the sticker it's only by hand.


Again, that’ll be aircraft specific. The B757 limits you to 500 rpm and 225 inch-pounds if a power tool is used.

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by fr8mech
Thu Oct 29, 2020 1:30 pm
Forum: Technical/Operations
Topic: Are cargo doors of passenger aircraft operated from the outside?
Replies: 11
Views: 2526

Re: Are cargo doors of passenger aircraft operated from the outside?

As in just about everything in aviation, it depends. On the B747, you can open both the forward and aft doors from the inside. There is a master latch lock release inside and outside. There is an open/close switch both inside and outside. You can close the doors from the inside, but you can’t lock t...

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by fr8mech
Sun Oct 25, 2020 11:40 am
Forum: Technical/Operations
Topic: Tightest flight schedules at a gate?
Replies: 6
Views: 2018

Re: Tightest flight schedules at a gate?

I haven’t worked pax in a long time, but I seem to recall our standard turn time for a B727-200 was 23 mins and a B757 was 27 minutes, or there about. Our wide bodies were a little more...maybe 40 minutes on a B767, and 55 on an L1011? Hmmm, just re-read the OP. If you’re talking gate utilization, t...

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by fr8mech
Wed Oct 21, 2020 12:31 am
Forum: Non-Aviation
Topic: Have you voted in the US Election yet?
Replies: 47
Views: 2617

Re: Have you voted in the US Election yet?

Early, and in person, yesterday. It took me longer to decide how to vote for for Soil Conservation Commissioner than it did to verify my identity and obtain my ballot.

By the way, I took my daughter (18) to vote for the first time. She was so happy with herself..as was I.

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by fr8mech
Tue Oct 20, 2020 7:49 pm
Forum: Non-Aviation
Topic: Political Position (Med Assisted Suicide)
Replies: 59
Views: 2592

Re: Political Position (Med Assisted Suicide)

Generally, I’m ok with someone choosing when it’s time to go. My wife and I discussed it when I was diagnosed a little under 4 years ago. (Happy to say that I am 3 years, 4 months cancer-free). My concerns revolve around competency and the doctor involved in the procedure/process. Competency issues ...

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by fr8mech
Sat Oct 17, 2020 8:17 pm
Forum: Technical/Operations
Topic: How can turboprops like C-130 and A400M cruise at the same height and speed as jets?
Replies: 34
Views: 5123

Re: How can turboprops like C-130 and A400M cruise at the same height and speed as jets?

Wouldn't that be possible with jet engines as well? I assume this is a procedure only trained in the military... but I could imagine this might work with commercial jet powered aircraft as well. It might be possible on a low bypass engine, but not probable. In a typical jet engine, the fan is not d...

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by fr8mech
Fri Oct 16, 2020 6:22 pm
Forum: Technical/Operations
Topic: When does it become safe to approach an engine after shutoff?
Replies: 15
Views: 2864

Re: When does it become safe to approach an engine after shutoff?

My personal opinion: an engine is not running if the core is not turning. No N2 (N3); then the engine is not running and it is safe to approach. I’d just about guarantee that the FCOM procedure cited above is related to the core and not the fan. In fact, can you see fan speed (N1) on newer engines w...

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by fr8mech
Thu Oct 15, 2020 9:33 pm
Forum: Technical/Operations
Topic: When does it become safe to approach an engine after shutoff?
Replies: 15
Views: 2864

Re: When does it become safe to approach an engine after shutoff?

Tuch the Fan? The fan needs to be just about stopped before you can get a hold of it. Too much mass there.

As for standing in front of the inlet? Almost immediately. The low pressure in front of the fan dissipates within seconds of shutdown.

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by fr8mech
Thu Oct 15, 2020 4:02 am
Forum: Technical/Operations
Topic: Off position for landing gear handle
Replies: 24
Views: 5137

Re: Off position for landing gear handle

They are huge and good question, I think so but am not sure, not flown the 763 but I did fly the 762 and I think the gear is normally extended and retracted hydraulically on that aircraft Strangely, the AMM does not clearly state that the main gear is hydraulically driven down. In fact, the wording...

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by fr8mech
Mon Oct 05, 2020 12:17 am
Forum: Technical/Operations
Topic: Until when will the tiller be used?
Replies: 33
Views: 4694

Re: Until when will the tiller be used?

VMCA787 wrote:
IIRC, it is nosewheel oleo extension that triggers the centering mechanism.


The centering mechanism is mechanical in nature...at least on Boeings, I’d have to check our Airbus manual later this week to confirm. There is a cam that is engaged when the lower strut (piston) is fully extended.

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by fr8mech
Thu Oct 01, 2020 12:53 am
Forum: Technical/Operations
Topic: Safety Hazards In/Around Aircraft
Replies: 13
Views: 3616

Re: Safety Hazards In/Around Aircraft

If I am not mistaken, the AMM does not mention the procedure and the lockout devices that AMTs must to use to deactivate aircraft systems. I'm not sure where you get that idea. The AMM has several instances where it instructs the AMT to make a system safe, or deactivate it to prevent injury or dama...

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by fr8mech
Tue Sep 29, 2020 7:39 pm
Forum: Technical/Operations
Topic: Airline test flights?
Replies: 12
Views: 3022

Re: Airline test flights?

At the carrier I worked as a crew scheduler for pilots were always adamant that we refer to it as a Functional Check Flight, as test flights were for experimental aircraft, and those pilots got paid way more. That reminds me of an FAA inspector we had that insisted that any repair that wasn’t perma...

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