Search found 62 matches

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by battlegroup62
Sun May 02, 2021 6:27 am
Forum: Technical/Operations
Topic: Which planes run out of engine hours first
Replies: 17
Views: 4712

Re: Which planes run out of engine hours first

Engines are tracked unrelated to the wing they might currently reside under. When covid first hit we were playing musical chairs with engines for weeks, just to move the ones with nearing maintenance to the frames going into storage. Engines are no more “attached” to an airframe, than the wheels as...

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by battlegroup62
Thu Apr 08, 2021 10:28 am
Forum: Technical/Operations
Topic: Which planes run out of engine hours first
Replies: 17
Views: 4712

Re: Which planes run out of engine hours first

The only time I've ever seen a new engine on an aircraft is when it was delivered. We pull engines all the time, way before the airframe is even close to going away. When the time comes to scrap an airframe, the engines will be replaced with high time engines that are no longer economical to overha...

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by battlegroup62
Thu Feb 18, 2021 4:30 am
Forum: Technical/Operations
Topic: How do passenger windows get so scratched up?
Replies: 7
Views: 2046

Re: How do passenger windows get so scratched up?

As fre8mech says, if on the outside its most probably crazing. Generally acceptable to a point then the glazing panel has to be changed. Check the depth of the defects with optical micrometer. Inside, pax and cleaners using the incorrect methods on the inner panes. Outside too. That's what happens ...

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by battlegroup62
Mon Feb 15, 2021 10:01 am
Forum: Technical/Operations
Topic: Powering systems inside a hangar
Replies: 14
Views: 1778

Re: Powering systems inside a hangar

Thank you! You answered another question I had in my head but assumed was obvious - that they wouldn't run the APU or engines indoors. Oh it's been done, it's one of those where the manual doesn't always specifically say you can't. Mainly because the tech writers didn't think they needed to put tha...

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by battlegroup62
Tue Jan 19, 2021 1:27 pm
Forum: Civil Aviation
Topic: American Eagle News and Discussion Thread
Replies: 1357
Views: 251062

Re: American Eagle News and Discussion Thread

According to a company memo I have in front of me, it appears that the last 6x E175s will NOT be delivered to MQ. "Given the ongoing impact of the pandemic on our business, AAG has informed us that it will not take delivery of the last six Embraer 175 aircraft that were due to enter service wi...

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by battlegroup62
Mon Jan 18, 2021 1:43 am
Forum: Technical/Operations
Topic: Boeing 737 Engine Bleed Precooler System Defiency
Replies: 5
Views: 1277

Re: Boeing 737 Engine Bleed Precooler System Defiency

Not at all. That’s why we have scheduled maintenance that digs a little deeper into the systems. Question: how many cracks are there in the wing or fuselage of any given aircraft? None? One, two, five, more? Once identified, usually during a scheduled maintenance check, the crack(s) is repaired or ...

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by battlegroup62
Tue Jan 05, 2021 1:39 am
Forum: Travel, Polls & Preferences
Topic: Big 4 to Big 3 in the USA
Replies: 43
Views: 5256

Re: Big 4 to Big 3 in the USA

You didn't post the article, but I found it. https://www.reuters.com/article/us-health-coronavirus-airlines-breakingv-idUKKBN2991JV It is all speculation at this point provided the government doesn't give them more money or travel doesn't pick up, the author states as such. Especially since the last...

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by battlegroup62
Fri Dec 11, 2020 8:56 pm
Forum: Civil Aviation
Topic: Embraer delivers six E175 at a time to Mesa Airlines / United Express
Replies: 24
Views: 5291

Re: EMBRAER delivers six E175 at a time to Mesa Airlines / UNITED Express

I would be cool if they flew them up in formation vs one at a time at least for a photo shoot.

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by battlegroup62
Wed Nov 18, 2020 10:24 am
Forum: Technical/Operations
Topic: Ground pin on power sockets
Replies: 12
Views: 2400

Re: Ground pin on power sockets

Yes 1.The aircraft produces 120 volt 400hz power from the generator with 3 phases plus a neutral tied to ground/airframe 2. yes there are a minimum of 3 wire going to the outlet labeled : power in, power out, ground 3. in the power converter/supply the "neutral" is grounded to the aircraft...

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by battlegroup62
Sat Nov 14, 2020 12:21 pm
Forum: Civil Aviation
Topic: American Eagle News and Discussion Thread
Replies: 1357
Views: 251062

Re: American Eagle News and Discussion Thread

jgcotter wrote:
E175 N212NN ferried from AVW to BNA yesterday for conformity checks to enter revenue service with Envoy.


Who does the heavy maintenance checks on the Envoy 175's?

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by battlegroup62
Fri Nov 06, 2020 11:13 am
Forum: Civil Aviation
Topic: Mitsubishi SpaceJet — Development & Production Thread
Replies: 720
Views: 145262

Re: Mitsubishi SpaceJet — Development & Production Thread

There were probably clauses regarding cancelation penalties for backing out of the CRJ deal that they didn't want to pay. And as evidenced by other Japanese companies like Toyota and their accelerator pedals they don't seem to like to admit they made an error. Which is sort of what backing out of a ...

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by battlegroup62
Wed Nov 04, 2020 4:08 am
Forum: Technical/Operations
Topic: How do follow me vehicles avoid running into planes or getting affected by their jet blast on taxiways in very low vis?
Replies: 12
Views: 1873

Re: How do follow me vehicles avoid running into planes or getting affected by their jet blast on taxiways in very low v

They use the ground radio channels just like the aircraft and have their own callsign. They don't get to drive were ever they want, on movement areas they follow the same comm rules and procedures as an aircraft. Ground control keeps track of everyone on frequency with either an old fashioned map or...

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by battlegroup62
Mon Jul 27, 2020 3:25 am
Forum: Technical/Operations
Topic: Cabin Air Recirculation Filters against Covid-19? (ATA 21)
Replies: 46
Views: 5799

Re: Cabin Air Recirculation Filters against Covid-19? (ATA 21)

I think it may have to do with the capacity of the PC air systems in terms of airflow and filtering. The aircraft can circulate more air than most PC air units unless you use one from an A380 on a 737, and the air would be filtered with HEPA filters vs unknown filters on the PC air. Plus I have hear...

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by battlegroup62
Fri Jul 17, 2020 10:58 pm
Forum: Civil Aviation
Topic: Updated: FI signs new FA contract (after stating will fire all FA and replace with pilots)
Replies: 148
Views: 27045

Re: FI Fires ALL FAs, Replaced By Pilots.

In the U.S. pilots are trained on cabin door operation and emergency evacuation. The safety briefing is the only thing not trained. Are they? My company has had more slides blown due to pilots that any other reason. I had one who was new to the company less than a month and they had no idea how to ...

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by battlegroup62
Wed Jul 08, 2020 1:19 pm
Forum: Technical/Operations
Topic: When do aircraft engine RTS?
Replies: 7
Views: 1757

Re: When do aircraft engine RTS?

Sometimes, the customers wants to send their aircraft engine back to us as "RTS". What I understand is that these engines have been overhauled before and left the shop. But it is now back as "RTS". So I am not sure if the engines have already been overhauled and left shop, why a...

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by battlegroup62
Mon Jun 22, 2020 12:57 am
Forum: Technical/Operations
Topic: Mitsubishi space Jet and MHI RJ ( CRJ)
Replies: 2
Views: 1688

Re: Mitsubishi space Jet and MHI RJ ( CRJ)

I doubt they could adapt the wiring since the Spacejet has so many different systems and technologies being fly by wire compared to the CRJ. It would be a restart of the wiring design and could delay the certification schedule. They already brought in Latecore to rework the mess they had originally ...

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by battlegroup62
Wed Jun 10, 2020 11:38 pm
Forum: Technical/Operations
Topic: Electric taxiing tug?
Replies: 11
Views: 3001

Re: Electric taxiing tug?

trpmb6 wrote:
I'd be concerned about having to double the number of vehicles moving around on the taxi ways. Additional failure modes... Pilot tries to take off with the tug still attached.. etc.


How bout using the tug to get the plane up to speed like a carrier catapult. It would save fuel :D

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by battlegroup62
Tue Jun 02, 2020 10:10 pm
Forum: Civil Aviation
Topic: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer
Replies: 1171
Views: 151962

Re: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer

I do not know. I only know the E175-E2 is a mere derivative of the E175 (E1) with new optimized wing. Basically I am saying that the E2 and SpaceJet get engines that are virtually identical , with very similar seating capacity and both need to have similar range. Unless someone has an anti-gravitat...

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by battlegroup62
Tue May 26, 2020 8:34 pm
Forum: Civil Aviation
Topic: Development paths for new scope compliant aircraft.
Replies: 355
Views: 17548

Re: Development paths for new scope compliant aircraft.

I have a very hard time believing scope requirements will not be changing with re-negotiations post-COVID restructuring. The E2-175 will end up as a regional jet. I believe in the same thing but the last time I said it out loud here I almost got beaten by unionists who believe that companies will p...

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by battlegroup62
Sun May 24, 2020 2:32 am
Forum: Technical/Operations
Topic: Parking airliners. question?
Replies: 5
Views: 1426

Re: Parking airliners. question?

Kind of is to a certain extent, and depending on how long it is being stored. On the AC I work there are different levels based on time. Less than 7 days, 7 to 30 days and 30 plus days. For less than 7 days its put probe covers on, and cover any air inlets/ outlets for ventilation and cover the engi...

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by battlegroup62
Sat May 23, 2020 7:31 am
Forum: Civil Aviation
Topic: Mitsubishi SpaceJet — Development & Production Thread
Replies: 720
Views: 145262

Re: Mitsubishi SpaceJet — Flight Test & Production Thread

This might help. https://en.wikipedia.org/wiki/Mitsubish ... Jet#Orders Granted, I'm not sure how up to date this info is. I'd wager since Mitsubishi has effectively thrown in the towel by halving the budget for the programs and is now closing offices not located in Japan that orders will start bei...

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by battlegroup62
Thu May 21, 2020 4:30 am
Forum: Civil Aviation
Topic: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer
Replies: 1171
Views: 151962

Re: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer

I wonder if they could do the same for the E275 just rate it at 89k and 76 seats.

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by battlegroup62
Thu May 21, 2020 1:06 am
Forum: Civil Aviation
Topic: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer
Replies: 1171
Views: 151962

Re: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer

Back onto the E2... could never figure out why they stretched the 175 to essentially make it an E2-180. The 175 as it is was already a bit portly under scope. Compass had a few dozen that exceeded standard scope weight and flew them via a contractual stipulation. Curious, is there any feasible way ...

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by battlegroup62
Wed May 20, 2020 4:32 am
Forum: Civil Aviation
Topic: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer
Replies: 1171
Views: 151962

Re: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer

Yes, but how long is the service cycle for those frames for each regional airliners today in the USA? The older ERJ-170/175 and CRJ700 are almost 20 years old already and if you consider a 2500 cycles per year on each plane most of the older E-jets are reaching almost 50k cycles by now. Another fac...

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by battlegroup62
Sat May 16, 2020 2:39 am
Forum: Civil Aviation
Topic: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer
Replies: 1171
Views: 151962

Re: Updated: Boeing Terminates Agreement to Establish Joint Ventures with Embraer

I can guarantee that none of the Ejets that have been scrapped have been due to age or cycle limits. I've seen the numbers on some of the oldest made, and they are just hitting 32000 cycles, less than half the limit.

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by battlegroup62
Tue Sep 10, 2019 12:48 am
Forum: Technical/Operations
Topic: IDG maintenance service package
Replies: 19
Views: 11225

Re: IDG maintenance service package

Some airlines use a program whereby they have a list of components that a third party stores and makes available whenever they are needed. The system can be used by multiple airlines to share the same components so long as the inventory levels are adjusted accordingly. At my company we call this a p...

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by battlegroup62
Wed May 29, 2019 10:11 am
Forum: Technical/Operations
Topic: Fear of aircraft lavatories
Replies: 19
Views: 3370

Re: Fear of aircraft lavatories

The lock mechanism is just a mechanical hasp. About as simple as you can make the thing, so there's not much that can malfunction. The worst I've seen is lack of lubriction causing the latch to be stiff. The doors are pretty flimsy. Not that you could necessarily force one, but certainly attracting...

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by battlegroup62
Sat May 11, 2019 2:28 am
Forum: Civil Aviation
Topic: Air Canada Jazz plane collides with fuel tanker truck at Toronto Pearson
Replies: 48
Views: 8773

Re: Air Canada Jazz plane collides with fuel tanker truck at Toronto Pearson

wetpantsmcgee wrote:
DLASFlyer wrote:
Menzies strikes again.


My first thought as well :lol:


Same here. They recently opened/ bought out ASIG where I work and have replaced all the truck with new ones. They don't look so new now, almost every one has dents and scrapes along the tanks.

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by battlegroup62
Thu May 02, 2019 6:35 pm
Forum: Aviation Hobby
Topic: B737 MAX should it stay or should it go?
Replies: 13
Views: 4679

Re: B737 MAX should it stay or should it go?

BravoOne wrote:
The airline business is scattered with dead bodies. What;s your point here?
[/quote]

I guess I should have held up my sarcasm sign. And perhaps 5 million was a typo for the dollar amount.

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by battlegroup62
Thu May 02, 2019 3:01 am
Forum: Aviation Hobby
Topic: B737 MAX should it stay or should it go?
Replies: 13
Views: 4679

Re: B737 MAX should it stay or should it go?

BravoOne wrote:
Boeing will be 5 million lighter.


Only 5 million, some managers and a ceo. that's a bargain for around 300 dead

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by battlegroup62
Tue Mar 19, 2019 6:05 am
Forum: Technical/Operations
Topic: Boeing's FOD problem
Replies: 16
Views: 3351

Re: Boeing's FOD problem

Its surprisingly easy to misplace something while working on an aircraft. I've found a ford wrench in a fuel tank, been there long enough to wear through the primer layer, and adjustable wrenches in flap fairings. Things happen, you get interrupted, put tools down and then forget where. I've seen gs...

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by battlegroup62
Thu Mar 07, 2019 6:19 pm
Forum: Civil Aviation
Topic: United Express/Commutair incident 3/4 at Presque Isle, ME
Replies: 106
Views: 25840

Re: United Express/Commutair incident 3/4 at Presque Isle, ME

I'd wager then that the reason the gear came off was the deep snow working like the runway end arrestor beds.

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by battlegroup62
Tue Feb 19, 2019 6:31 am
Forum: Technical/Operations
Topic: E170/5 different winglets
Replies: 20
Views: 3482

Re: E170/5 different winglets

Well he's not wrong, but obviously you were hoping for more than that. The enhanced winglet is one step closer to the blended wingtip like say on the 787 and on the E2's. With all the aerodynamic studies that have been done to study wingtip vortices, drag ... we went from no winglets, to multiple de...

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by battlegroup62
Tue Jan 08, 2019 8:05 am
Forum: Technical/Operations
Topic: Most expensive aircraft part
Replies: 39
Views: 8976

Re: Most expensive aircraft part

I know that an IDG for an E-jet lists for $650k

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by battlegroup62
Tue Dec 18, 2018 4:38 am
Forum: Technical/Operations
Topic: How long does it take to scrap an aircraft?
Replies: 13
Views: 4181

Re: How long does it take to scrap an aircraft?

I've seen it done on an ERJ, it flew in,was stripped of usable parts down to a bare tube, and stuffed into a 40 yard dumpster in less than a month. If its just scrapping then several days depending on size and what equipment you use to crush it.

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by battlegroup62
Tue Nov 27, 2018 1:34 am
Forum: Technical/Operations
Topic: Republic E175 - moving passengers for weight and balance?
Replies: 21
Views: 3575

Re: Republic E175 - moving passengers for weight and balance?

AWACSooner wrote:
citationjet wrote:
I rode a UA CRJ200 on a 3 hour flight last week.

You deserve a medal

And counseling for PTSD. Sounds like punishment.

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by battlegroup62
Thu Aug 16, 2018 11:31 am
Forum: Civil Aviation
Topic: Southwest latest airline to restrict service, emotional support animals
Replies: 30
Views: 4592

Re: Southwest latest airline to restrict service, emotional support animals

Good. It's about time. I was waiting for a SWA flight a year or so back. An older guy was nearby with his wife and "support dog." The guy was boasting to another couple of how their dog travels with them all the time, and that he used to have to pay to transport fido in a crate in the hol...

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by battlegroup62
Fri Aug 10, 2018 2:49 pm
Forum: Technical/Operations
Topic: Embraer 175 strobe lights
Replies: 6
Views: 1716

Re: Embraer 175 strobe lights

The reason they are not synchronized on the original ejet is that the strobe power supply and lighting is designed with capacitors and xenon strobe bulbs whereas the enhanced ejet has led strobes controlled by printed circuit boards. You can't see the lights themselves from the cockpit without tryin...

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by battlegroup62
Fri Aug 03, 2018 10:39 am
Forum: Technical/Operations
Topic: Can a plane be maintained to fly indefinitely?
Replies: 35
Views: 3956

Re: Can a plane be maintained to fly indefinitely?

Every single part of an aircraft can be replaced, in principle. There no principle about it. It has been done with enough time. Which, of course, begs the question: if you replace every single part of an aircraft, are you really flying the original aircraft? Yes its the same because the if the data...

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by battlegroup62
Tue Jun 05, 2018 9:18 pm
Forum: Technical/Operations
Topic: Hail damage on parked aircraft
Replies: 4
Views: 2606

Re: Hail damage on parked aircraft

Can hail also cause damages on aircraft while parked on the ground? Or are the paint, metal structure, composite parts and windows strong enough to withstand these impacts? c Absoultely, in fact I've seen the tops of the fuselage and elevators come in looking like a golf ball, makes dent logging su...

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by battlegroup62
Tue May 29, 2018 4:28 am
Forum: Technical/Operations
Topic: Flying with air conditioning packs off?
Replies: 22
Views: 5129

Re: Flying with air conditioning packs off?

If its Pan Am and flying over the north pole it is probably a 747. There are 3 packs on a 747s and all can be shut down in flight but to preserve cabin pressure 1 must remain running. When one or more of the packs are shut down the air circulation is reduced in this case 1/3 per pack and temp contro...

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by battlegroup62
Wed May 16, 2018 4:47 am
Forum: Technical/Operations
Topic: Red square on top of CRJ-200 fusulage
Replies: 8
Views: 2797

Re: Red square on top of CRJ-200 fusulage

Absolutely right, It is a cut here mark for rescue workers. Its is not necessarily a requirement to have them in the US, but in some other countries it is. That area has been selected because its free of power cables and hydraulic lines so as not to endanger the rescue workers when they cut it.

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by battlegroup62
Thu May 10, 2018 9:13 am
Forum: Technical/Operations
Topic: How Often Do Airliner Interiors Get A “Deep Clean?”
Replies: 8
Views: 2598

Re: How Often Do Airliner Interiors Get A “Deep Clean?”

I'm pretty sure they get a good sand blasting and UV treatment (when they end up in the desert at end-of-life). I had the pleasure to fly on an AA 789 that was one month old. Judging from how things looks and smell on a brand-new aircraft, you know planes never get a thorough cleaning until they ar...

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by battlegroup62
Fri May 04, 2018 3:03 am
Forum: Technical/Operations
Topic: 'Broken' seat on JQ flight
Replies: 21
Views: 2022

Re: 'Broken' seat on JQ flight

Keep in mind sterile cockpit rules. The FA's may have had a ten minute window to inform the crew about the seat, they may not be aware of the safety implications of an automatically reclining seat and thus did not deem it worth notifying the cockpit before it went sterile. They may have thought it w...

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by battlegroup62
Wed Jan 24, 2018 3:55 am
Forum: Technical/Operations
Topic: A Question for Flight Attendants: How Safe are Hot Drinks on Commercial Airplanes?
Replies: 26
Views: 2549

Re: A Question for Flight Attendants: How Safe are Hot Drinks on Commercial Airplanes?

I've done the task for sanitizing the water system and it can be done several ways. The easiest is using bleach,the problem comes with whether you use enough to be effective, a lot of people don't want to do the math to figure out how much to use for a full water tank since it says use x amount per ...

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by battlegroup62
Sat Jan 20, 2018 2:32 am
Forum: Technical/Operations
Topic: Just what is involved to kit out aircraft with WiFi?
Replies: 10
Views: 1572

Re: Just what is involved to kit out aircraft with WiFi?

Could a 787/350 have the antenna incorporated into the fuselage from the very beginning as part of the laminations? Not likely. The antenna is not like a Tv aerial antenna its a satellite dish, some of which are motorized to track the satellites in orbit. Not to mention sometimes the antenna itself...

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by battlegroup62
Wed Dec 27, 2017 4:34 am
Forum: Technical/Operations
Topic: New aircraft Mx’s vocabulary
Replies: 19
Views: 1992

Re: New aircraft Mx’s vocabulary

That's selective reading. ALL the words are important and carry meaning, not just the ones you want to be important. Can you imagine what the world would be like if we could just ignore certain words within a statute? It's ALL the words or NONE of the words. I agree you seem to be taking certain th...

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by battlegroup62
Wed Dec 27, 2017 1:39 am
Forum: Technical/Operations
Topic: New aircraft Mx’s vocabulary
Replies: 19
Views: 1992

Re: New aircraft Mx’s vocabulary

the chapter you are quoting is referring to what must be done once a discrepancy is found, I agree with you that once a discrepancy is written in the logbook or whatever system is in place the capture it it must be either repaired or deferred. However your initial question is about using common sens...

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by battlegroup62
Mon Dec 25, 2017 5:26 am
Forum: Technical/Operations
Topic: New aircraft Mx’s vocabulary
Replies: 19
Views: 1992

Re: New aircraft Mx’s vocabulary

I think you may be misinterpreting the point of common sense. Where I work we are under the same pressure to write up squawks and also to not write up too much. We don't use the term common sense, we use: out of scope and fit, form, function. that means when we have inspection we are to look at the ...

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by battlegroup62
Thu Dec 07, 2017 11:41 pm
Forum: Technical/Operations
Topic: Batteries during an EMER EVAC - ON or OFF
Replies: 6
Views: 944

Re: Batteries during an EMER EVAC - ON or OFF

Is there more to the checklist? On ones I have seen you call for evacuation then there is another list for aircraft shutdown prior to cockpit evacuation. Also its possible that if you are calling for an evac there are bigger issues to deal with than if the batteries could start a fire. say, the plan...

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