Search found 3147 matches

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by Dalmd88
Fri Jul 12, 2019 3:22 pm
Forum: Civil Aviation
Topic: Delta announces MD-90 retirement deadline - end 2022
Replies: 111
Views: 17879

Re: Delta announces MD-90 retirement deadline - end 2022

Are they still bringing the BR715 in house as well? I'm sure that will be an additional consideration on how long the 717 last. It has been done in ATL for two years now. I don't see that as a reason to keep the 717 after the MD88/90 are gone. We need the shop space for more profitable engines(GTF)...

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by Dalmd88
Thu Jul 11, 2019 10:54 pm
Forum: Technical/Operations
Topic: Biggles software B757
Replies: 2
Views: 1899

Re: Biggles software B757

Welcome back, Sorry I can't help. I've been out of the 757 business for quite a few years.

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by Dalmd88
Thu Jul 11, 2019 10:52 pm
Forum: Technical/Operations
Topic: Retread Tires on Commercial Planes
Replies: 22
Views: 2727

Re: Retread Tires on Commercial Planes

I worked line mtc for 4 years. I don't recall ever installing a 'new' tire. I changed a ton of tires on midnights. The only 'new' ones where on newly delivered planes.

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by Dalmd88
Thu Jul 11, 2019 10:49 pm
Forum: Civil Aviation
Topic: Delta announces MD-90 retirement deadline - end 2022
Replies: 111
Views: 17879

Re: Delta announces MD-90 retirement deadline - end 2022

MHO only. I see the 717s staying until at least 2026-27 (they're great small short range airplanes), and a top up A220 order, including launch of the A220-500, within 18 months from today. I think the 717s will last longer, but the timeframe depends on lease terms and A220 costs. My back of the env...

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by Dalmd88
Tue Jul 09, 2019 9:43 pm
Forum: Civil Aviation
Topic: Engine spinner detaches mid-flight.
Replies: 45
Views: 15971

Re: Engine spinner detaches mid-flight.

DocLightning wrote:
Why is the bearing glowing orange?

If you see the bearing like in this case that means the fwd cover has failed. Inside the cover there is an oil pump that sprays fresh oil on the number one bearing. The spinner is mounted to the cover. The N1 tach gen is mounted to the cover under the spinner.

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by Dalmd88
Tue Jul 09, 2019 12:46 pm
Forum: Civil Aviation
Topic: DL A321 Seats Blocking Exit Door
Replies: 67
Views: 15396

Re: DL A321 Seats Blocking Exit Door

Last night I was traveling on a DL A321, and noticed that at door 2L and 2R the seats in the row in front of the exit (I believe row 12) were partially blocking the door. The back of the seat came to approximately the window of the exit door, roughly covering 1/3 of the door and exit. How is this l...

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by Dalmd88
Thu Jul 04, 2019 1:18 pm
Forum: Technical/Operations
Topic: 727s Texas to Puerto Rico and viceversa non-stop?
Replies: 12
Views: 2242

Re: 727s Texas to Puerto Rico and viceversa non-stop?

So I see the -200 Advanced had the range. Was this with the use of the optional cargo bladder tanks or could it do it with just the regular fuel tanks? How much range could these tanks add to the plane. I remember DL had a couple of airframes that had the Aft Cargo tank installed and I know the Fwd ...

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by Dalmd88
Wed Jul 03, 2019 3:23 pm
Forum: Technical/Operations
Topic: How often does an engine come off?
Replies: 19
Views: 3726

Re: How often does an engine come off?

A slightly different aspect of this. I have heard that airlines sensibly try to have engines at different stages of life on a frame - such that if an life related issue appears it is unlikely to impact both engines. On an long time production frame does that mean an engine swap almost immediately a...

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by Dalmd88
Sat Jun 29, 2019 4:03 pm
Forum: Technical/Operations
Topic: How often does an engine come off?
Replies: 19
Views: 3726

Re: How often does an engine come off?

I would suspect that the oil from an oil change is tested to see if contaminants, if signs of worn metal in it. If there is beyond a certain limit of such contaminants or worn metal, then the engine would be have to be removed to be examined further and fixed. . Oil in Jet engines never gets change...

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by Dalmd88
Wed Jun 26, 2019 9:10 pm
Forum: Technical/Operations
Topic: Why did DL remove Winglets on some of their 757 fleet?
Replies: 17
Views: 5415

Re: Why did DL remove Winglets on some of their 757 fleet?

So its actually removed or just not installed? Removed I believe for all of them. There were two 757 that were still in the DL passenger fleet that never had winglets installed. There were existing wing repairs that made them not eligible for the winglet mod do to the increased stress from the wing...

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by Dalmd88
Mon Jun 24, 2019 1:32 pm
Forum: Technical/Operations
Topic: Natural Gas and Aviation
Replies: 12
Views: 1687

Re: Natural Gas and Aviation

Bio fuels are much more likely than LNG. They are more stable, similar to today's Jet/Diesel, and have similar volume to power ratio. The US Navy is currently pushing very hard to become 100% bio for all aviation fuel. That could push the technology to the private sector quicker.

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by Dalmd88
Fri Jun 21, 2019 2:18 pm
Forum: Technical/Operations
Topic: Pilots of airlines only flying MAX version of the B737
Replies: 11
Views: 3595

Re: Pilots of airlines only flying MAX version of the B737

Just because they are furloughed doesn't mean an airline loses those pilots for the future. After 9/11 many airlines in the US furloughed pilots. If it was a major airline most came back. With union contracts in the US I doubt an airline would be able to furlough from type. Say there are 200 Max pil...

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by Dalmd88
Fri Jun 21, 2019 2:04 pm
Forum: Technical/Operations
Topic: Stuck two nights in LIT: Can't push back
Replies: 23
Views: 3754

Re: Stuck two nights in LIT: Can't push back

It does make sense with the AA A300 tow bar config. There are many different towbar connection configs and of course weight ratings. Usually most airlines have at least one of every possible diversion available for a given station. Why they didn't have one is a big mystery. Also throwing one for a 7...

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by Dalmd88
Fri Jun 21, 2019 1:54 pm
Forum: Technical/Operations
Topic: 19 seat airliner question
Replies: 35
Views: 4438

Re: 19 seat airliner question

I believe Wings West at one time had a F/A on their Metroliner service. Sat in a passenger seat and stored a small cooler in the small carryon compartment. I would think one requirement for hire would be no taller than say 4' 6". I think the F/A would go against the total count of people on bo...

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by Dalmd88
Thu Jun 13, 2019 3:38 pm
Forum: Civil Aviation
Topic: German DFS denies transfer flight trough german airspace of an Norwegian 737 Max
Replies: 18
Views: 5584

Re: German DFS denies transfer flight trough german airspace of an Norwegian 737 Max

Why did they wait? Maybe it is a space issue. Not every airport has the room for many grounded airplanes. They could have left the planes scattered around their system where they had space and are only now moving them to where they can get the fix or other work done. Other airlines have sent their a...

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by Dalmd88
Tue Jun 11, 2019 12:03 am
Forum: Technical/Operations
Topic: Why can’t aircraft maximize fuselage space by using ceiling space?
Replies: 35
Views: 5761

Re: Why can’t aircraft maximize fuselage space by using ceiling space?

In reality the floor to ceiling ratio is a lot closer to the lower drawing. The floor is located near the center of the tube to maximize floor space for more seats. There really isn't that much room above the drop ceiling of most widebody jets. Yes there are crew rest rooms in the 777. It's like bei...

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by Dalmd88
Fri Jun 07, 2019 7:58 pm
Forum: Technical/Operations
Topic: Prevalence of Ground Electric Power Supply
Replies: 10
Views: 2268

Re: Prevalence of Ground Electric Power Supply

If the airport can handle transport category aircraft there is almost always ground electrical power available. If there are no jet ways then there is an FBO that has a ground power electric cart that does 440v. Those carts are everywhere. Now an air start cart could be a little hard to find at a re...

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by Dalmd88
Thu Jun 06, 2019 8:47 pm
Forum: Civil Aviation
Topic: Delta MD-88s as of Summer 2019
Replies: 64
Views: 8079

Re: Delta MD-88s as of Summer 2019

Hello all, So the MD-88s supposedly have until sometime next year until retirement. They have been steadily parked over the last year and I’m curious of a few things... 1. What are the longest remaining routes the MD-88 currently flies for DL? 2. How many should be left in the fleet by the end of t...

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by Dalmd88
Sun Jun 02, 2019 12:00 am
Forum: Technical/Operations
Topic: How easy is it to start a regional/commuter airline?
Replies: 19
Views: 3380

Re: How easy is it to start a regional/commuter airline?

It is very difficult I would think. The start up costs are astronomical. After getting through all the hoops to start service you then have to get people on your planes. Quite a few small niche airlines have tried the couple of route method. Most don't make it. EAS is another avenue, but it is tough...

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by Dalmd88
Sat Jun 01, 2019 11:37 pm
Forum: Civil Aviation
Topic: What happened to the Delta and United 747 pilots?
Replies: 83
Views: 16569

Re: What happened to the Delta and United 747 pilots?

Why would they? Seniority (under seniority line bidding) is THE TOOL to ensure you're flying the aircraft you want and the trips you want. Do you think a bunch of people are going to give up seniority rights at DL/UA just to avoid being retrained on a 77W or A350? Life can be very, very good as a 6...

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by Dalmd88
Sat Jun 01, 2019 1:05 pm
Forum: Civil Aviation
Topic: Delta A220 route additions
Replies: 350
Views: 30532

Re: Delta A220 route additions

I work at MKE for Delta and a few months ago we got 220 parking marking painted at the delta gates so maybe a MKE 220 route is possible in the future. I wouldn't read too much into the parking markings. I think they are adding them to every station that could possibly see a A220, even as a diversio...

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by Dalmd88
Sat May 25, 2019 1:39 pm
Forum: Technical/Operations
Topic: Door 2 Delete vs Door 3
Replies: 10
Views: 2886

Re: Door 2 Delete vs Door 3

I think the reason there is no door 2 on the longer 737 is related to the number of frames fwd of the engine inlet. There are quite a few less than the 757, that would move the L2 a lot closer to the L1. Another factor is the L3 door on the 737 is an emergency only door just like the 767-400 and 757...

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by Dalmd88
Sun May 19, 2019 1:47 pm
Forum: Technical/Operations
Topic: Delta A&P Test
Replies: 5
Views: 2260

Re: Delta A&P Test

I took the test many years ago. The logic part did trip up a few people. I talked with one of the young guys in our shop about it. It sounds similar to the one I took years ago. I tried looking up examples on the internet but could not find any. Kind of hard to describe it with 20 years of memory fa...

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by Dalmd88
Mon May 13, 2019 12:49 pm
Forum: Civil Aviation
Topic: DTW-LAN. Why?
Replies: 69
Views: 8292

Re: DTW-LAN. Why?????

One of my favorite short flights was EFD-IAH. A flight from the south side of Houston to the northside. CoEx ran this for years. It mostly worked due to the NASA population around EFD.

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by Dalmd88
Thu Apr 25, 2019 9:52 pm
Forum: Technical/Operations
Topic: 767-300 (non-ER) Transatlantic
Replies: 28
Views: 3676

Re: 767-300 (non-ER) Transatlantic

One point here, ER does not mean ETOPS. It means Extended Range. A 767-300 can be ETOPS, it just has less range than the ER model. Just like a 757-200 can be ETOPS.

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by Dalmd88
Mon Apr 22, 2019 10:55 pm
Forum: Civil Aviation
Topic: Delta 763 Retirement
Replies: 14
Views: 3293

Re: Delta 763 Retirement

I would guess it is working charter flights, not retired.

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by Dalmd88
Mon Apr 22, 2019 1:05 am
Forum: Civil Aviation
Topic: Delta allegedly lobbying against new FAA rest rule for cabin crew
Replies: 101
Views: 27821

Re: Delta allegedly lobbying against new FAA rest rule for cabin crew

Delta always fighting against anything good for the workers. Immoral and unethical anti labor company with the dirtiest practices to make sure their employees don't unionize. You are so wrong. Yes I've been pro union for a long time, but I really don't see it happening at DL under the current leade...

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by Dalmd88
Sat Apr 20, 2019 12:26 pm
Forum: Technical/Operations
Topic: Airline operations question
Replies: 12
Views: 2204

Re: Airline operations question

Even if there are no slots or curfews very few people want to begin or end their flights at 2 am. I think India is about the only place in the world where it is common. That is likely dictated by the curfews of the airports on the other end of the flights and by the stage lengths of the flights.

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by Dalmd88
Fri Apr 19, 2019 1:22 am
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

Why aren't MD-90 engines overhauled in-house by Delta? Seems like Delta's maintenance skill was a major factor behind the acquisition of the MD-90, yet the work is done by a contractor. Here we see DL playing its cards on the retirement timing issue. MD90 engines are being sent to Christchurch. And...

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by Dalmd88
Fri Apr 19, 2019 1:16 am
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

But you did just build a new engine shop and new test cell. https://news.delta.com/new-state-art-engine-shop-enables-future-repairs https://www.ajc.com/business/delta-builds-world-largest-jet-engine-test-cell/uPOQwkeh5C0jFh8YLd5RgJ/ Your links note the shop will add the Trent T1000, T7000, and Txwb...

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by Dalmd88
Thu Apr 18, 2019 11:16 pm
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

Doesn't DL handle the BR715 in-house, too? . The BR715 is maintained in house. Are the JT8Ds? I know they used to be handled vat DL. As noted before, if you want a V2500D5 serviced, ship it to Christchurch NZ. Everyone, including Pratt, services the CFM-56-5/-7. The V2500A5+ are serviced all over t...

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by Dalmd88
Sun Apr 14, 2019 2:00 pm
Forum: Civil Aviation
Topic: 30+ aircraft damaged at DFW?
Replies: 33
Views: 14993

Re: 30+ aircraft damaged at DFW?

So to answer a couple of questions; First how do you know it's been damaged? That is pretty easy. One quick look at the upper surface of the wing areas or the crown of the plane will show some dents. It's not like only a couple of dents. The surface will look like a golf ball. The wing itself typica...

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by Dalmd88
Sun Apr 14, 2019 1:32 pm
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

I am very confused by this discussion, Delta announced they are accelerating the retirement of the MD88/MD90. Did I miss where they said they are retiring the 717's? As far as I know, they have a few years left in them at the least and Delta isn't planning on getting rid of them over the next few y...

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by Dalmd88
Fri Apr 12, 2019 3:08 pm
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

DL first discussed acquiring second hand aircraft in 2006, well before it entered merger talks with NW. and they definitely based their projections on a ~20 year lifespan, even going as far to say that they were projecting a $1B savings-less if R&M was higher than projected (it was) and lifespa...

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by Dalmd88
Thu Apr 11, 2019 8:39 pm
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

Seems like many of the Anderson era strategic thrusts discussed with much chest pounding here on a.net either never happened or are now being slowly unwound. Seems DL MRO is still a great asset, but their dependence on other shops to do rebuilds of various oddball engines seems to be the Achilles h...

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by Dalmd88
Thu Apr 11, 2019 8:33 pm
Forum: Civil Aviation
Topic: Delta looking into accelerating MD-90 retirement
Replies: 203
Views: 31374

Re: Delta looking into accelerating MD-90 retirement

Well, it's 2019 after all. Seems this belongs to a place and an era where people were still using paper cheques. :duck: I just mailed a couple of checks (assume that's the same as a 'cheque') yesterday... It is, and that is actually the correct spelling. It's Queens English. The only real English. ...

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by Dalmd88
Thu Apr 11, 2019 9:07 am
Forum: Civil Aviation
Topic: AD to be issued on 787 RR Trent 1000 TEN engines
Replies: 28
Views: 11472

Re: AD to be issued on 787 RR Trent 1000 TEN engines

This is not unexpected. The TEN turbine blades are the essentially the same as the original 1000 pack C blades. The new version of the 1000 C blade has just now been put into service. The XWB and the early 7000 will likely have the same issues.

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by Dalmd88
Tue Apr 09, 2019 8:12 pm
Forum: Technical/Operations
Topic: City-owned / Non profit Commuter Airline
Replies: 7
Views: 1471

Re: City-owned / Non profit Commuter Airline

Some cities have lured an airline by offering a monthly payment. They usually last for a year or so. Lowers the risk of an airline starting a new city. Even better for a city with zero service.

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by Dalmd88
Tue Apr 09, 2019 2:18 pm
Forum: Technical/Operations
Topic: Why do MD-80s lock their horizontal stabilizer in an upright position at the gate?
Replies: 24
Views: 4461

Re: Why do MD-80s lock their horizontal stabilizer in an upright position at the gate?

Correct the elevator on the DC9/MD80/90/717 is a floating elevator.The control cables from the the flight deck are connected to a small control tab on the trailing edge of the elevator. The pilots move the tab and essentially fly the elevator to the required position. Douglas did this so they would ...

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by Dalmd88
Tue Apr 09, 2019 1:54 pm
Forum: Civil Aviation
Topic: Mystery MD88 N158JP
Replies: 17
Views: 4303

Re: Mystery MD88 N158JP

Just because AA and DL are retiring MD80's doesn't mean they are available for sale to use at another airline. I doubt DL is selling any of the retired planes. When the original DL DC9 fleet was retired it was sold off and promptly became startup ValuJet. Operating those very same airplanes out of A...

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by Dalmd88
Fri Apr 05, 2019 9:12 am
Forum: Technical/Operations
Topic: Private pilot training and pilot uniforms
Replies: 9
Views: 2499

Re: Private pilot training and pilot uniforms

They are flight academy cadets. Most likely they are required to wear a uniform. It's just like Air Force pilots wearing flight suits and gloves to begin training in a 172.

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by Dalmd88
Tue Apr 02, 2019 3:26 pm
Forum: Technical/Operations
Topic: How many aircraft are out of service at one time in a major airline ?
Replies: 13
Views: 2270

Re: How many aircraft are out of service at one time in a major airline ?

A good ballpark figure for a large major with a mix of narrow and widebodies would be about 8-10% in major work.

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by Dalmd88
Fri Mar 29, 2019 12:45 pm
Forum: Civil Aviation
Topic: Flight Attendants are Selling Their Seniority
Replies: 195
Views: 23525

Re: Flight Attendants are Selling Their Seniority

It is evil though. You’re screwing people with the time in who actually want to work the trip. If they had the "time in" they would have held the trip. They didn't have enough time in so they did not. Don't get me wrong, I don't think "selling trips" is ethical - it's sleazy and...

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by Dalmd88
Thu Mar 28, 2019 12:36 am
Forum: Technical/Operations
Topic: What can you do with a B.S. in Aviation/Aviation Management??
Replies: 17
Views: 3113

Re: What can you do with a B.S. in Aviation/Aviation Management??

I personally think even the Aviation Management degree that is getting bashed pretty bad by some to be worth it. Any management type of degree shows you can set a goal and accomplish it. They all teach you think critically and learn. In any program you learn how to read and write at a college level....

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by Dalmd88
Tue Mar 26, 2019 8:06 pm
Forum: Technical/Operations
Topic: Lonely ATR-72 disappears over North Atlantic (?)
Replies: 13
Views: 4455

Re: Lonely ATR-72 disappears over North Atlantic (?)

https://www.easa.europa.eu/sites/defaul ... s%2007.pdf
-->

BravoOne wrote:
Don't know anything about the ATR-72 but, I'm confident that it is not certified for any kind of ETOPS.

Both the -72 and the -42 are 120 min ETOPS rated. Here is the EASA Type Data:
https://www.easa.europa.eu/sites/defaul ... s%2007.pdf

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by Dalmd88
Tue Mar 26, 2019 7:59 pm
Forum: Civil Aviation
Topic: Timing of a big order delivery
Replies: 3
Views: 799

Re: Timing of a big order delivery

Airlines rarely take big orders all at once. Usually they are spaced out so no more than 3-4 new airframes come into service each month. This spaces out the required maintenance checks in the future. If you took delivery of 20 airplanes in one month, in 18 months all of them would come due for a che...

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by Dalmd88
Tue Mar 26, 2019 12:40 am
Forum: Technical/Operations
Topic: Research questions about airline maintenance
Replies: 8
Views: 1277

Re: Research questions about airline maintenance

Hangars are typically owned by the airport and long term leased to one airline. Airlines will rent out space for short term work. Usually a grounded airplane that must be repaired inside. A crew windshield would be a good example. Yes airlines help each other all the time. Parts get loaned. That is ...

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by Dalmd88
Mon Mar 25, 2019 9:07 am
Forum: Civil Aviation
Topic: Airbus and Boeing committing economic suicide by opening China aircraft plants
Replies: 28
Views: 4467

Re: Airbus and Boeing committing economic suicide by opening China aircraft plants

Airbus and Boeing are not the first to produce airplanes in China. McDonnell Douglas had an MD90 line there. That was like 20 years ago.

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by Dalmd88
Sun Mar 24, 2019 4:00 am
Forum: Technical/Operations
Topic: Research questions about airline maintenance
Replies: 8
Views: 1277

Re: Research questions about airline maintenance

"Large enough to have it's own in house maintenance" That can mean a lot of different things. My first job back in the early 90's was a 19 passenger operator with 10 airplanes. We did most of our own maintenance. Only engine overhauls and component work was sent out. We had maintenance in ...

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by Dalmd88
Sat Mar 16, 2019 11:50 am
Forum: Civil Aviation
Topic: Atlas Air bends a 767
Replies: 130
Views: 43635

Re: Atlas Air bends a 767

Can anyone describe how the fuselage reinforcement works? Is it bolted on or welded? This kind of stuff fascinates me. The damaged area is cutout. New structure is installed in place using the same rivet and hilock system the plane is built with. So for a stringer section you fab a new stringer sec...

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