Re: AA orders 85 Airbus A321neo, 85 Boeing 737 MAX 10 and 90 Embraer E175 aircraft

Internal communication indicates that the E175s will be used in retiring the E145s by the end of the decade. This opens the door for the the E175 at Piedmont or consolidation among wholly owned regionals. I'd imagine unless Envoy is immune to the pilot shortage or has no trouble hiring pilots the 1...

Re: How do airlines decide which regional operator to put on flight?

If I remember correctly when Delta reduced their regional outsourcing n 2019 they effectively did it by splitting the US into 3 regions. Skywest got the West coast, Republic got the East coast and Endeavor got the center. Of course there isn't really a dividing line for each so they do have overlap....

Re: Endeavor E-175 Operations

Those planes will also operate until they time out and are scrapped as they are not scope Compliant on weight and were grandfathered in under their specific serial number. What makes them different aside from the higher MTOW. I have worked on those specific 175s owned by Delta and other 175s operat...

Re: CVR

From what I've worked on post 2000 ish built aircraft have DVDR's which is a combo unit. The aircraft have one in the nose and one in the tail, and both are interchangeable. It's backup since the regs require one of each, and with flash memory being so cheap why not put more in the case, and let it ...

Re: Why no cabin mods for Embraer

It is possible that Embraer is waiting on the fallout of the scope clauses for the e275, and to see if there is demand for their new turboprop before doing a cabin refresh on an "old" design. That being said the 175sc's do have new a new seat design, but the bins and everything else are th...

Re: Can you still order a new E190 E1?

Since the E1 and E2 and the are made on the same assembly line yes they can be built, The question would be why buy a new one. The used market for the 190/5 is pretty open right now with Jetblue and Azul beginning to retire their fleets for the A220, and E290/5 respectively. These aren't being retir...

Re: Crew seat replacement

Crew seats do have an inspection interval just like cabin seats. On the aircraft I work they get inspected every 2 for structural and function issues. The cosmetic issues are also taken care of but are not a primary concern. The crew write things up when it breaks so there often isn't much that can ...

Re: Re-configuring seating pattern on a E170

this begs another question.. What are the mainenance patterns for a 20y old E170? How many hours/days/weeks in a year would it need to be in a hangar getting checks done on average? If during the summer season there is no overnight routes, can this be done overnight and ready for first flight in mo...

Re: Re-configuring seating pattern on a E170

Can it be done yes. the seats can be moved in increments of an inch. It would take two or three days do all the work. It's easy to re-pitch the seats but the more difficult/ tedious work would be replacing all the seat track covers with longer ones, re-pitching the psu's and moving all the seat loc...

Re: Re-configuring seating pattern on a E170

Can it be done yes. the seats can be moved in increments of an inch. It would take two or three days do all the work. It's easy to re-pitch the seats but the more difficult/ tedious work would be replacing all the seat track covers with longer ones, re-pitching the psu's and moving all the seat loca...

Re: AA drops Mesa; Mesa to transition all flying to UA

gdg9 wrote:

If Mesa ends up flying only for United, I hope it works out better for them than it did for ExpressJet. All their eggs in one basket.

Re: Question about 737 Over Wing Exit Locks

The lock is engaged when the left or right engine is running and 3 or more entry/serviced doors are closed and the air/ground logic is in the air mode or both thrust levers are advanced beyond 53°. Take away one of these three conditions and power is removed from the flight lock solenoid and the do...

Re: Sand Bag Use

DiamondFlyer wrote:

No, at least in the states they're actual sandbags.

Re: E190 window spacing

Well I did some digging and you are correct the window spacing between 2 windows near the front of the satcom fairing and 2 near the back is smaller by just over 100 millimeters. The frame charts don't reveal any major structure changes at those 2 locations, in fact a rear fuselage plug starts rough...

Re: My flight is delayed due to a lightning strike. Question:

Generally speaking, there is rarely enough damage to require an aircraft change. However, an inspection would be needed if the pilots of the inbound sector report a possible lighting strike. It might have taken that long because the inbound pilots were unaware of the strike (yes this can happen) an...

Re: E190 window spacing

There is a fuselage barrel joint in that vicinity that may be the cause but I would almost swear its an optical illusion , I've never noticed a spacing difference before up close. I'll see if I can get a dimension of it to get an answer.

Re: Jets gain weight? Really?

To what extent have D (or even C) checks shedded some of this "unplanned" weight gain? The plane gets cleaner than is was. I found about 1 quart of suitcase zipper tabs from 1 cargo pit, and enough lost snacks to make a new bag of trail mix. But CIC is an effective way to glue down FOD. A...

Re: Data on maintenance-related Delays and Cancellations by Aircraft System (ATA chapter)

See reply #2

Re: E-Jets Question

It has to do with takeoff, landing, empty weights, and passenger counts. If you check the TCDS it gives a rundown for each one. It allows for the same airframe to be limited to pilot's union clauses without physically modifying the aircraft aside from seat counts.

Re: Tail Anti-Ice leading edge question.

Going back to the metal strip on the fin leading edge, I am fairly sure all A350s come with it. Some operators may just choose to paint it for aesthetics. I can't think of any operators with the strip painted. Which ones are you thinking of? Since it is for erosion protection it is likely that they...

Re: Envoy E175 Drops Winglet in Turbulence

A missing winglet can be MEL’d, I’ve flown a couple planes configured that way. I’ve seen worse things. Not on the E175. It counts as a lifting surface on them. They had to remove the other one and get a ferry permit to fly to ABI for repairs. I wonder if it could be added as an Mel. The ferry prov...

Re: Envoy E175 Drops Winglet in Turbulence

They are ramping up inspections on these spurs, and replacing the remaining 40. This airplane was one of those. Hope the FEDs don't made it a grounded till inspected or repaired deal. With all the supply chain issues I doubt there are a ton of spare spar kits available plus it takes a good week to ...

Re: Envoy E175 Drops Winglet in Turbulence

Embraer issued a service bulletin about winglet spar fatigue in 2018, it was slowly being complied with and Envoy had roughly 40 airplanes left to modify. These mods are now being sped up after this incident. The theory is that the turbulence was caused by the winglet failing, not the weather. I'd ...

Re: Increasing Beech Sierra VNE

I have been wanting to purchase a Beechcraft C24 Sierra. I find it to be "almost" the best combination of good looks, pilot and passenger comfort, but it comes up a little short in top-end speed when compared to other 200 HP retractables. I'd like to explore the possibility of installing ...

Re: Does anybody know how much money is made from breaking down airliners and selling the scrap?

How much of an airliner is melted back down to aluminum? I understand al prices are through the roof now. I do recall someone posting years ago that aircraft aluminum could not be used for beverage cans. Along those lines, are all those airplane wires you see in scrapping videos recyclable for thei...

Re: Any opinions on hydraulic fuses?

I believe the recommendations from those crashes are paraphrased like this. "In the event of a catastrophic failure all flight control systems can't be disabled." To do this I've seen several ways it can be done. For cable driven flight controls: 2 sets of cables that are routed along diff...

Re: Which airliners have ram air turbines. Which power hydraulics and which provide electricity?

737 has cables going to flight controls, actuated by a person. These people powered generators consume cheap coffee and garbage airport food. The muscle-powered actuators... What about emergency electric generation? Windmilling engines, only batteries, or a dozen hamsters running inside a ball? Per...

Re: FAA wants to know what actions Airlines are going to do to curb unruly passenger incidents

Francoflier wrote:

Upgrade from duct tape to speed tape?

Re: UPS 747 takeoff without flap fairing

No such thing as a breach of airworthiness. An aircraft may be deemed non-airworthy and thus can't fly. There are many parts of an aircraft that can be missing and the aircraft still be airworthy. Its called the Configuration Deviation List or CDL, a list of things that do not have to be working or ...

Re: Does the DC-10 nose gear strut not meet the ground at a 90 degree angle?

StereoTechque wrote:

Classic example of a Positive camber.
Good for straight line stability and reducing steering effort.

Re: Does the DC-10 nose gear strut not meet the ground at a 90 degree angle?

Problem with the canted nose gear design is it completely lifts the outboard nose wheel off the ground in a tight turn while taxiing, now you’re steering with just one wheel, not so good, especially when you have a wet surface I wouldn't say its a problem, it ensures slower speed turns. If such a t...

Re: Embraer E-jet questions.

It may not be the door. Does your G1 galley have a sink, if it does dump some water in it when you hear the sound and see what happens. If it stops or changes pitch its the drain valve leaking due to lower cabin pressure. Try pulling the drain valve knob to reseat it. As for the yaw, there is only a...

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...

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...

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 ...

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...

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...

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 ...

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...

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.

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...

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.

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 ...

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...

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...

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 ...

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...

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 ...

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.

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...