Search found 92 matches

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by gregorygoodwin
Tue Sep 21, 2021 7:32 pm
Forum: Technical/Operations
Topic: What are the three vertical lines on the MD-11 radome?
Replies: 7
Views: 1688

Re: What are the three vertical lines on the MD-11 radome?

These strips are not repairable locally if they are damaged, such as segments missing or de-bonded, which does happen. They are sent back to the manufacturer or a certified repair station. On our MD's, if the strips are damaged in some way, the radome is sent to Nordam in Tulsa, OK.
Gregory

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by gregorygoodwin
Tue Sep 14, 2021 5:25 pm
Forum: Technical/Operations
Topic: BCF and BDSF designations.
Replies: 6
Views: 782

Re: BCF and BDSF designations.

Thanks for the replies. I'm somewhat familiar with the warranty conditions mentioned in 747classic's informative post. Our B767-300Fs are all Boeing factory built, but the B757-200s were converted at Mobile, AL by ST. When any issue arrives with any of the parts installed by them in the conversion p...

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by gregorygoodwin
Mon Sep 13, 2021 4:31 pm
Forum: Technical/Operations
Topic: BCF and BDSF designations.
Replies: 6
Views: 782

BCF and BDSF designations.

Does anyone know the differences between the Boeing Converted Freighter (BCF) and the BDSF designations? Not sure if the BDSF is a Boeing Designed Special Freighter or if it was a Bedek conversion. I have always assumed that the BCFs were ships that were converted at a Boeing licensed facility but n...

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by gregorygoodwin
Sat Aug 28, 2021 10:49 pm
Forum: Technical/Operations
Topic: Around the weather
Replies: 17
Views: 2049

Re: Around the weather

Starlionblue mentions that you must sometimes thread your way through thunderstorm cells. The question I have is maybe slightly off topic, but I've always wondered how you can deviate from a set course, thread your way through thunderstorms, and then return to your original course of travel. Is it l...

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by gregorygoodwin
Mon Aug 23, 2021 10:09 pm
Forum: Technical/Operations
Topic: "Silver dollar patch"?? MD-95 /Boeing 717
Replies: 5
Views: 1174

Re: "Silver dollar patch"?? MD-95 /Boeing 717

I think the reference is to the circular repair doubler used for small punctures or dents that are beyond limits. You can find them in some of the SRMs under the typical repair schemes. You are limited in where these repairs can be used, especially on pressurized structure. They are some times calle...

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by gregorygoodwin
Sat Aug 21, 2021 10:47 pm
Forum: Technical/Operations
Topic: BAC R15-FV (BRILES) rivets
Replies: 7
Views: 1156

Re: BAC R15-FV (BRILES) rivets

Honestly, I can't answer your query. I'm not familiar with this aircraft or what its intended mission was. At the time it was built, it was common to see non-flush fasteners on aircraft. For example, you see a lot of protruding head rivets on DC-3s and B-17s and many other ships of this era. My best...

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by gregorygoodwin
Wed Aug 18, 2021 9:03 pm
Forum: Technical/Operations
Topic: CFRP & FGRP
Replies: 6
Views: 1097

Re: CFRP & FGRP

I can only answer this from what I have seen on the aircraft we work on (B757-200, B767-300F, MD10-30, MD11, A300, and B777-200F). In terms of the cure temperature of a composite layup, the higher your cure temp. the more durable your layup will be. A three fifty degree cured layup will be superior ...

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by gregorygoodwin
Wed Aug 18, 2021 8:26 pm
Forum: Technical/Operations
Topic: BAC R15-FV (BRILES) rivets
Replies: 7
Views: 1156

Re: BAC R15-FV (BRILES) RIVETS

The amount of rise above the surrounding surface for a correctly installed briles rivet is only in the area of maybe two to four thousandths of an inch. The crown of the rivet is a smooth domed shaped that is probably negligible in drag. Also, if you ever look closely at a MD10 or MD11, the producti...

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by gregorygoodwin
Mon Aug 16, 2021 2:17 pm
Forum: Technical/Operations
Topic: CFRP & FGRP
Replies: 6
Views: 1097

Re: CFRP & FGRP

In the SRM, they are denoted as CFRP and GFRP. As stated in the above posts, they are carbon fiber (CFRP) and fiberglass (GFRP). What can confuse some is the GFRP reference. I've heard it called graphite fiber reinforced plastic which is not correct. One interesting thing about the fiberglass is tha...

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by gregorygoodwin
Mon Aug 16, 2021 1:46 pm
Forum: Technical/Operations
Topic: BAC R15-FV (BRILES) rivets
Replies: 7
Views: 1156

Re: BAC R15-FV (BRILES) RIVETS

You don't shave the briles type rivets after installation. If done correctly, they have a domed appearance that is slightly higher than the surrounding surface. This is normal for these rivets. Another type of rivet not normally shaved is the NAS1097 type. It is a countersunk style rivet that is usu...

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by gregorygoodwin
Wed Aug 11, 2021 9:33 pm
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 47
Views: 6944

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

As I mentioned in my above post, I've worked the structural side of maintenance my entire career. The B727 had a good SRM and was, from a structures point of view, a good plane to work on. However, it could make you so exasperated that you wanted to hand in your company badge and quit. One of these ...

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by gregorygoodwin
Sat Jul 17, 2021 10:48 pm
Forum: Technical/Operations
Topic: Protective corrosion coatings and aerodynamics
Replies: 7
Views: 1007

Re: Protective corrosion coatings and aerodynamics

Maybe I can provide some answers. Composites on aircraft, especially on the exterior of the plane, are virtually always painted surfaces. This is because ultraviolet light, such as sunlight, will degrade the composite resins. Most of the resins used in fiberglass, carbon fiber, and hybrid lay-ups, s...

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by gregorygoodwin
Fri Jul 16, 2021 11:25 pm
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 47
Views: 6944

Re: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?

In my career in aircraft maintenance, I've always worked structures and composites. For me, the Lockheed L1011 had one of the best structural repair manuals. It was simple, straight-forward, and gave you clear and concise graphics and information. The aircraft itself was easy to work on as it was a ...

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by gregorygoodwin
Wed Mar 17, 2021 8:52 pm
Forum: Technical/Operations
Topic: Ligthning Strikes.
Replies: 12
Views: 2625

Re: Ligthning Strikes.

An update to this topic. I was recently called over to our flight line in IND to do a visual evaluation of a lightning strike on a MD10-30. When we arrived we were shown a deep dent on the forward right side of the nose of the ship. At first, I thought that this couldn't be lightning strike damage, ...

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by gregorygoodwin
Wed Mar 17, 2021 8:26 pm
Forum: Technical/Operations
Topic: HUD on commercial aircraft.
Replies: 8
Views: 1695

Re: HUD on commercial aircraft.

For us at FedEx, apparently there is a profitable case. All of our ships have HUD's. Although I'm not totally sure about our Airbus A300's. Our MD10's, MD11's, B757's, and B767's all have HUD's installed. What may be different with our system is that it is coupled with a Forward Looking Infrared opt...

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by gregorygoodwin
Thu Feb 25, 2021 10:55 pm
Forum: Technical/Operations
Topic: Ligthning Strikes.
Replies: 12
Views: 2625

Re: Ligthning Strikes.

Great stories and responses! Thanks guys! It's amazing when you see lightning in storms hitting the ground and what power it has, that a aircraft can take that kind of hit and keep going. The strange laws of physics!

Gregory

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by gregorygoodwin
Wed Feb 24, 2021 9:51 pm
Forum: Technical/Operations
Topic: Ligthning Strikes.
Replies: 12
Views: 2625

Ligthning Strikes.

I have not been on a flight that has taken a lightning strike, at least not one I was aware of. I was wondering if any of the flight crew followers of this forum could share info on this. Do you know for sure when you take a strike or suspect that the ship has taken a strike? I work in the structure...

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by gregorygoodwin
Mon Feb 22, 2021 5:55 pm
Forum: Technical/Operations
Topic: Delta 757 Wing And Stabilizer Paint
Replies: 10
Views: 3379

Re: Delta 757 Wing And Stabilizer Paint

Our 767-300F aircraft have Aerofex on the wing surfaces between the forward and aft spars, upper surface and lower. The fixed leading edges, aft trailing edges and flap track fairings all use BAC 707 light gray which is a polyurethane coating. As mentioned above, the Aeroflex is a dark gray metal-fl...

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by gregorygoodwin
Mon Feb 15, 2021 10:05 pm
Forum: Technical/Operations
Topic: Powering systems inside a hangar
Replies: 14
Views: 1958

Re: Powering systems inside a hangar

At our hangar here in IND, there is an over-head power drop-down station, some hangars have floor recessed power stations. The station has ground power for the aircraft, two air hoses for maintenance purposes, and 120V power, again, used for maintenance purposes. Each aircraft bay has this. The airc...

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by gregorygoodwin
Tue Jan 05, 2021 9:50 pm
Forum: Technical/Operations
Topic: How do airlines manage maintenance inspections at the spokes?
Replies: 24
Views: 3256

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

Our operation seems to have some kind of maintenance personnel at all of the out stations, whether it be company or vendor. Our hubs for maintenance are Memphis, Indianapolis, and Los Angeles. Most of the ships will make it to one of these bases daily. The out stations are usually supplied with the ...

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by gregorygoodwin
Sun Dec 20, 2020 11:04 pm
Forum: Technical/Operations
Topic: Do cargoliners have locked cockpit doors? Or cockpit doors for that matter?
Replies: 26
Views: 3950

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

All of our freighters have doors here at FedEx. This is probably because all of our ships have entry way jump seats, except for the 767's which have the jump seats on the flight deck itself. Several years back we installed locking ballistic doors on the MD10's and 11's. It was an interesting project...

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by gregorygoodwin
Wed Dec 16, 2020 11:06 pm
Forum: Technical/Operations
Topic: The smell of flying!
Replies: 19
Views: 3244

Re: The smell of flying!

I still get to experience the jet fuel smell as a maintenance tech at the FedEx IND hangar. You can definitely tell when fuel panels are opened and the fuel leak crew is working, it's over-powering at times. Also, when we taxi a ship from the hangar to the flight line, you can stand at the hangar do...

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by gregorygoodwin
Thu Nov 12, 2020 12:37 am
Forum: Travel, Polls & Preferences
Topic: Boeing 737 and 767 question
Replies: 4
Views: 2099

Re: Boeing 737 and 767 question

FedEx is still receiving B767-300F's and will be for a while. While UPS flies the 767, I'm not sure if they are still on the order books or if their fleet is now complete. Have read some press articles about aviation that stated that Boeing was thinking of a updated 767 freighter. It supposedly woul...

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by gregorygoodwin
Thu Oct 22, 2020 8:42 pm
Forum: Technical/Operations
Topic: Fasteners on composite aircraft
Replies: 10
Views: 2434

Re: Fasteners on composite aircraft

With further reading of the various Boeing SRM's, I found that to install aluminum fasteners into dissimilar material, the preferred method is to coat the fastener or the fastener hole with BMS 5-95 sealant (PR1422). The secondary preferred method is to coat with BMS 10-11 primer (epoxy primer). The...

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by gregorygoodwin
Wed Oct 21, 2020 9:33 pm
Forum: Technical/Operations
Topic: Fasteners on composite aircraft
Replies: 10
Views: 2434

Re: Fasteners on composite aircraft

In my experiences with solid shank aluminum rivets, they are not coated. The rivets we install on the 757 fan cowl edges are a bare 2117 AD alloy. You can buy 1100 A series rivets that are pure unalloyed aluminum. These are not used in a structural load bearing setting as they are a very soft low st...

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by gregorygoodwin
Tue Oct 20, 2020 11:40 pm
Forum: Technical/Operations
Topic: Fasteners on composite aircraft
Replies: 10
Views: 2434

Re: Fasteners on composite aircraft

I agree with you in that it's a rabbit hole of sorts and I've worked heavy aircraft structures for over 35 years now. As stated in the B757 and B767 Structures Repair Manuals, the use of fasteners in a CFRP-to-CFRP application would be a titanium or CRES (corrosion resistant steel) fastener. The CRE...

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by gregorygoodwin
Wed Sep 30, 2020 9:29 pm
Forum: Technical/Operations
Topic: Safety Hazards In/Around Aircraft
Replies: 13
Views: 3659

Re: Safety Hazards In/Around Aircraft

Here at FDX, we have a LOTO system that is laid out in our General Maintenance Manuel. When we bring a ship into the hangar for maintenance we have a crew that does what is called a pre-dock. This is when a lot of the systems are inactivated and circuit breakers are pulled and tagged. If during the ...

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by gregorygoodwin
Sun Sep 27, 2020 9:45 pm
Forum: Technical/Operations
Topic: Airline test flights?
Replies: 12
Views: 3051

Re: Airline test flights?

Years ago, at EAL, our planes coming out of a heavy check were test flown. This was usually done out over the everglades west of Miami. I was a maintenance tech at the time and got to go on two check flights. The captain who flew a lot of these check flights would sometimes walk through our hangar a...

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by gregorygoodwin
Sat Sep 19, 2020 10:57 pm
Forum: Technical/Operations
Topic: Best Hot Bonders (Technical).
Replies: 4
Views: 2290

Re: Best Hot Bonders (Technical).

I work structures/composites for FDX. We use Heatcon products. In the past, they had some misgivings but the new ones we recently obtained seem to be dependable and easy to operate machines. They are dual zone capable and can run some large heat blankets. They are not as prone to giving you alarms f...

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by gregorygoodwin
Sat Aug 01, 2020 10:50 pm
Forum: Technical/Operations
Topic: Stowable front door airstairs
Replies: 4
Views: 1625

Re: Stowable front door airstairs

Some of Eastern Airlines 727's had this. I worked in the structures shop at the time, and we usually had to remove the air-stair and do repairs to the internal structure of the aircraft due to cracking. It was quite a chore but, was usually done on a C-check maintenance visit. Sometimes you may see ...

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by gregorygoodwin
Mon Apr 27, 2020 12:36 am
Forum: Technical/Operations
Topic: Belly Cargo on Freighter Question
Replies: 11
Views: 2184

Re: Belly Cargo on Freighter Question

At FedEx, our 757 lower cargo bays are hand loaded. On the inside of the lower cargo bay there is no motorized loading system or rollers, its just a flat aluminum paneled floor. As I now work in the aircraft structures shop, we frequently have to repair punctures in the floor panels caused by loadin...

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by gregorygoodwin
Fri Mar 13, 2020 10:17 pm
Forum: Civil Aviation
Topic: Boeing 767 Production/Activity Thread - 2020
Replies: 193
Views: 51578

Re: Boeing 767 Production/Activity Thread - 2020

N299FE is now at our maintenance base in Indy. It is getting it's pre-service check and being modified for the heads up display and sat-com. The radome has been removed and will be shipped back to Boeing for installation on a later ship. It takes about two weeks of work to get the ship ready for it'...

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by gregorygoodwin
Tue Feb 18, 2020 6:37 pm
Forum: Technical/Operations
Topic: Narrowbody Freighter Conversion Discussion
Replies: 30
Views: 3755

Re: Narrowbody Freighter Conversion Discussion

Our MD fleet is scheduled to be greatly downsized in the near future. The MD10-10's are supposedly to be gone by May of this year, they will be scrapped. The MD10-30 is getting reduced in number with some getting parked with preservation for the near future, others may be scrapped also. The MD11's a...

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by gregorygoodwin
Mon Feb 10, 2020 6:36 pm
Forum: Technical/Operations
Topic: Engine wear: What happens?
Replies: 8
Views: 1635

Re: Engine wear: What happens?

On our aircraft the usual cause of engine removal is hot section turbine blade wear or case defects, these components live a hard life. This is usually on our GE CF6-6 engines. As far as I know, we (FDX) are the only ones still operating this variant. They have probably been overhauled numerous time...

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by gregorygoodwin
Mon Feb 10, 2020 6:20 pm
Forum: Technical/Operations
Topic: Wheel retraction question
Replies: 12
Views: 2636

Re: Wheel retraction question

Quite a bit of sequencing goes on with gear retraction and deployment. Although not related to the authors brake question, if the main gear has multiple axles on the bogie beam, such as a 757, 767, etc, the bogie must be centered upon gear retraction to go up into the gear well. This is done by a ac...

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by gregorygoodwin
Tue Oct 01, 2019 6:18 pm
Forum: Civil Aviation
Topic: Runaway cart at ORD, saved from hitting plane by ground crew (video)
Replies: 50
Views: 12755

Re: Runaway cart at ORD, saved from hitting plane by ground crew (video)

Sort of funny in a way, it looks as if the thing was throwing a temper tantrum. If it had of struck the aircraft it would have been very expensive and probably would have required significant down time to repair. The radome would have been obliterated and behind it is the weather radar, the glide sl...

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by gregorygoodwin
Tue Jun 18, 2019 8:37 pm
Forum: Technical/Operations
Topic: Questions about freight
Replies: 5
Views: 1817

Re: Questions about freight

One way, I suppose, is by finding a niche market and becoming exceedingly good at it. For example, we sometimes need aircraft parts on weekends or holidays when most companies are shut down or minimally staffed. There are shippers, such as LaserShip, that have people on standby that will go at any t...

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by gregorygoodwin
Mon Jun 17, 2019 2:45 pm
Forum: Technical/Operations
Topic: Questions about freight
Replies: 5
Views: 1817

Re: Questions about freight

The major air freight companies move a lot of cargo under contract. At FedEx, we ship for the USPS under a contract agreement. Companies such as Amazon will put out bids for movement of there freight and the air cargo companies can respond with a bid proposal. The movement of freight for large shipp...

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by gregorygoodwin
Thu Apr 25, 2019 1:40 pm
Forum: Travel, Polls & Preferences
Topic: Funniest in-flight announcements?
Replies: 44
Views: 4399

Re: Funniest in-flight announcements?

I recall taking a flight on USAir from Houston Intercontinental to Pittsburgh. We had to taxi around the main terminal to the other side then out to a set of runways that seemed to be way out in the pine woods, it took awhile to get there. The captain announced that we apparently were going to taxi ...

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by gregorygoodwin
Sun Apr 07, 2019 11:35 pm
Forum: Technical/Operations
Topic: Optimum materials
Replies: 17
Views: 2103

Re: Optimum materials

I recall reading about research into materials that will change their shape when subjected to an electrical impulse, and then return to their original shape when the impulse is taken away. The idea for aircraft would be a wing or flight control that can assume various shapes according to the needs o...

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by gregorygoodwin
Sat Mar 23, 2019 11:45 pm
Forum: Technical/Operations
Topic: Research questions about airline maintenance
Replies: 8
Views: 1368

Re: Research questions about airline maintenance

Well, I'll give this a shot. Working hours. If you are with a major airline, passenger or freight, you most probably work a eight hour or, in my case, a ten hour day. I work a ten hour shift with three days a week off. With the FBO operators that I have worked for, I generally worked a eight hour sh...

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by gregorygoodwin
Tue Mar 12, 2019 8:43 pm
Forum: Technical/Operations
Topic: New 767-300ER/-F Avionics and Engine Options
Replies: 14
Views: 2187

Re: New 767-300ER/-F Avionics and Engine Options

To Max Q,
I am not really in a position to give a definitive answer to your question, ( I'm structures/composites shop) I think that the flight deck is more towards the 777 standard but, this could be in error on my part.
Gregory

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by gregorygoodwin
Mon Mar 11, 2019 9:52 pm
Forum: Technical/Operations
Topic: New 767-300ER/-F Avionics and Engine Options
Replies: 14
Views: 2187

Re: New 767-300ER/-F Avionics and Engine Options

Hello, The HUD mod for the FedEx 767's are done in Indianapolis. The ship arrives directly from Boeing and is placed into our east hangar for modification. The entire project takes about two to three weeks. In the past, the ships arrived with the standard Boeing approved flight deck instrumentation....

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by gregorygoodwin
Tue Feb 26, 2019 6:10 pm
Forum: Technical/Operations
Topic: Jump seat - question
Replies: 28
Views: 2731

Re: Jump seat - question

At FedEx, we have a jump-seat administration office that handles our jump-seat fliers. If you are a properly licensed pilot or maintenance technician, you can contact them for help. As a company maintenance tech, I can schedule a flight online through our system. This is after passing a test and bei...

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by gregorygoodwin
Wed Feb 20, 2019 9:07 pm
Forum: Technical/Operations
Topic: Identifying Aircraft with Hushkit Installed
Replies: 9
Views: 1936

Re: Identifying Aircraft with Hushkit Installed

jakubz, At FedEx, our 727-200's had hush kits installed that were supposedly a FedEx designed product. I have read where FedEx made some big money on the sale of these kits to other 727 operators. I do not think that we designed and built these at FX. They were most probably designed and built at so...

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by gregorygoodwin
Tue Dec 04, 2018 6:21 pm
Forum: Technical/Operations
Topic: RB211 Not Standard for Cargo Ops?
Replies: 6
Views: 1297

Re: RB211 Not Standard for Cargo Ops?

Hello, Well, I don't understand this one either. I work aircraft maintenance at FedEx and we have RB211 powered 757's and they seem to perform well hauling freight. Most of our systems mechanics prefer working on the RB211 powered 757's than the P&W 2000 series powered ships, not sure why, I do ...

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by gregorygoodwin
Mon Nov 05, 2018 7:44 pm
Forum: Technical/Operations
Topic: Aircraft maintenance going downhill?
Replies: 42
Views: 5008

Re: Aircraft maintenance going downhill?

I have worked in aviation maintenance for about 30 to 35 years now. Started out in the U.S. Navy and now work at one of the major U.S. based freight airlines. I read the post above about foreign maintenance personnel and how it is assumed that they are somehow substandard. I would say this is not th...

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by gregorygoodwin
Wed Aug 29, 2018 2:27 pm
Forum: Technical/Operations
Topic: Unpainted plugged windows
Replies: 11
Views: 2799

Re: Unpainted plugged windows

What could be happening is that the ship is manufactured with a set amount of windows down each side. If the ship's operator then installs a piece of equipment, such as a galley or closet, over a window opening, it will get a metal plug. This is because the window panes on aircraft have to be inspec...

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by gregorygoodwin
Mon Aug 20, 2018 3:29 pm
Forum: Technical/Operations
Topic: Refreshing the cockpit.
Replies: 18
Views: 2226

Re: Refreshing the cockpit.

If you mean getting a new decor to match a cabin upgrade, I would say never. I work in structures for FedEx, we do a inspection of the flight deck every B-check and I'm sure it is done on C and D checks also. If anything is damaged or worn, it gets repaired or replaced. Things like flight deck panel...

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by gregorygoodwin
Tue Aug 14, 2018 9:45 pm
Forum: Technical/Operations
Topic: Radom on 777F
Replies: 31
Views: 2994

Re: Radom on 777F

Hello everyone, I wanted to post an update for this topic to show what the topic author was actually looking at. This photo shows a close-up of a B767 radome that has the FLIR port on it. https://previews.dropbox.com/p/thumb/AAIBwWZx-nKHgzdToFRz3yvfpVOqCvv9nloanZUGcDkRQRlHITEmQVgLNw7BNsqiLYw_Mh0-2W6...

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