Search found 292 matches

by Lpbri
Mon Jan 24, 2022 4:13 pm
Forum: Technical/Operations
Topic: Avionics Bay Access and Pressurization
Replies: 36
Views: 1449

Re: Avionics Bay Access and Pressurization

All airliners have forward E&E compartments. On wide bodies, they are accessible from the cabin, narrow bodies they are not. On the 777, the E&E is accessible from the forward cargo. The 787 also has an aft E&E, not accessible from the cabin but from the aft cargo. All E&E compartmen...

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by Lpbri
Tue Jan 11, 2022 5:49 pm
Forum: Technical/Operations
Topic: CFM56-7B: white drops on the outboard side of exhaust plugs
Replies: 6
Views: 1403

Re: CFM56-7B: white drops on the outboard side of exhaust plugs

Never seen this. I’m guessing bird droppings. The warm tailpipe might attract certain types of birds.

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by Lpbri
Tue Dec 21, 2021 10:15 am
Forum: Technical/Operations
Topic: A330 FMCG Update with Honeywell navDB
Replies: 7
Views: 1070

Re: A330 FMCG Update with Honeywell navDB

Also called a MAC Daddy

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by Lpbri
Wed Nov 17, 2021 7:33 pm
Forum: Technical/Operations
Topic: Restrictions on #2 Thrust Reverse L1011/DC10/MD11
Replies: 20
Views: 2916

Re: Restrictions on #2 Thrust Reverse L1011/DC10/MD11

I’m just wondering what the lockout prodcedure is for an MD-11. I remember on a 767. Installing 3 red lock plates on the outside of the trans cowl and flipping and installing a locking square drive in the center drive unit. Easy enough on the ground, but much more time consuming when you are 2 stori...

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by Lpbri
Wed Oct 27, 2021 7:54 pm
Forum: Technical/Operations
Topic: Duration of 747 Hydraulic Pressure Reduction?
Replies: 7
Views: 811

Re: Duration of 747 Hydraulic Pressure Reduction?

The flaps on any aircraft, as a rule, will not droop. Take a B747, for instance. The flaps are not driven by an actuator in the sense that the primary flight controls are. The flaps are driven on jackscrews running in transmissions (all that stuff lives under the fairing or canoe) that are driven b...

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by Lpbri
Wed Oct 13, 2021 3:04 pm
Forum: Technical/Operations
Topic: MX Systems in 2021
Replies: 5
Views: 1023

Re: MX Systems in 2021

I guess no one uses the FMR system.

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by Lpbri
Mon Oct 04, 2021 2:13 am
Forum: Civil Aviation
Topic: 2021 NFL Charters
Replies: 99
Views: 17901

Re: 2021 NFL Charters

How is it that DAL gets most of the NFL charters?

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by Lpbri
Fri Sep 24, 2021 6:42 pm
Forum: Technical/Operations
Topic: Delta TechOps Line Technician
Replies: 18
Views: 2835

Re: Delta TechOps Line Technician

I’m guessing the first few pay steps at DAL are small, and the last step is the big one.

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by Lpbri
Sun Aug 29, 2021 3:22 am
Forum: Technical/Operations
Topic: Question on Aerodynamic Center
Replies: 3
Views: 1216

Re: Question on Aerodynamic Center

The chord length is merely a reference length. The actual symbol used in Moment coefficient is l. The reference length is chosen to pertain to the given geometric shape. For an airplane wing, l is the mean chord length.

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by Lpbri
Wed Aug 04, 2021 5:50 pm
Forum: Technical/Operations
Topic: Does the 2nd gen 777 have any exterior lighting differences from 1st gen?
Replies: 8
Views: 1913

Re: Does the 2nd gen 777 have any exterior lighting differences from 1st gen?

Possible the nose gear mounted taxi light may be replaced by a wing root integrated unit.

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by Lpbri
Sat Jul 31, 2021 5:52 pm
Forum: Technical/Operations
Topic: 737 MAX electrical system
Replies: 10
Views: 1361

Re: 737 MAX electrical system

VFSG’s are for variable frequency electrical systems. A 737, be it an NG or MAX has no such system.

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by Lpbri
Thu Jul 29, 2021 4:30 pm
Forum: Technical/Operations
Topic: Welding in the main gear well ?
Replies: 11
Views: 1657

Re: Welding in the main gear well ?

The only welding I ever saw on the airplane was to fix a crack on a pack heat exchanger. That would be in a safe area to weld.

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by Lpbri
Mon Jul 26, 2021 6:16 am
Forum: Technical/Operations
Topic: A321 Tire Replacement
Replies: 18
Views: 6178

Re: A321 Tire Replacement

Actually, you won’t find tire replacement criteria in the AMM, but rather in the individual airlines Procedures Manual. The applicable section on “Wheels and Tires” gives information on tire pressures, replacement criteria and disposition. I’m pretty sure all airlines specify replacing both tires wh...

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by Lpbri
Sun Jul 25, 2021 2:42 pm
Forum: Technical/Operations
Topic: A321 Tire Replacement
Replies: 18
Views: 6178

Re: A321 Tire Replacement

As was stated earlier, if the tire was found flat on arrival, both the flat tire and the opposite tire have to be replaced. A321 wheels take much longer to change due to brake fans (if equipped). Plus, if the contract maintenance personnel have little experience with these wheels, you are looking at...

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by Lpbri
Thu Jul 22, 2021 1:12 am
Forum: Travel, Polls & Preferences
Topic: TWA 707 Livery Question Circa 1978
Replies: 2
Views: 526

Re: TWA 707 Livery Question Circa 1978

You must have flown on a 707-331. They were finally retired in 1979. This was probably planned a long time and there was no point painting them in the new livery unless necessary.

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by Lpbri
Thu Jul 15, 2021 6:30 pm
Forum: Technical/Operations
Topic: Question For the Mechanics: Which Commercial Aircraft Have Been Easiest and Most Difficult For You to Work On?
Replies: 71
Views: 13535

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

This question is more easily answered with regards to engines. For me, no question, the easiest engine is the RR Trent 892. Most things are mounted on the fan case, which gives much easier access. Fuel control changes are a breeze. It’s not always RR. PW2000s had the edge over the RR211. Late model ...

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by Lpbri
Mon Jun 28, 2021 6:37 pm
Forum: Technical/Operations
Topic: How much does a typical airline pilot know about his/her aircraft?
Replies: 22
Views: 4251

Re: How much does a typical airline pilot know about his/her aircraft?

As with anything technical, it’s not what you know but how to find out what you need to know

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by Lpbri
Sun Jun 06, 2021 9:06 pm
Forum: Civil Aviation
Topic: 35 years ago merger-mania 1986
Replies: 130
Views: 18058

Re: 35 years ago merger-mania 1986

I remember I was working at ICT when the Continental-Frontier merger took place. I saw Frontier 737s all lined up on a taxiway. They would land, park then takeoff a few hours later. Needless to say, I was puzzled by all this. I was told they were transferring ownership in Kansas because the taxes we...

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by Lpbri
Mon May 31, 2021 9:37 am
Forum: Civil Aviation
Topic: American Airlines 940 Emergency Return to SCL - Santiago, Chile
Replies: 7
Views: 3988

Re: American Airlines 940 Emergency Return to SCL - Santiago, Chile

According to my research, it was a slat problem. Still had to make an overweight landing.

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by Lpbri
Mon May 17, 2021 9:27 pm
Forum: Technical/Operations
Topic: APU Inflight start on Battery
Replies: 8
Views: 2405

Re: APU Inflight start on Battery

I would guess that starting an APU in thinner air takes more juice.

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by Lpbri
Fri May 14, 2021 12:19 am
Forum: Civil Aviation
Topic: Breeze - News and Discussion Thread - 2021
Replies: 1849
Views: 364040

Re: Breeze - News and Discussion Thread - 2021

Has Breeze announced any new routes yet?

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by Lpbri
Fri May 07, 2021 5:39 pm
Forum: Civil Aviation
Topic: Wisconsin Aviation Thread - 2021
Replies: 140
Views: 19695

Re: Wisconsin Aviation Thread - 2021

Not yet...

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by Lpbri
Fri May 07, 2021 5:38 pm
Forum: Civil Aviation
Topic: Wisconsin Aviation Thread - 2021
Replies: 140
Views: 19695

Re: Wisconsin Aviation Thread - 2021

Not yet...

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by Lpbri
Sun May 02, 2021 6:47 pm
Forum: Technical/Operations
Topic: Brakes and brake fans
Replies: 16
Views: 4442

Re: Brakes and brake fans

Deactivating the brake fans for a wheel change is a step you don’t skip.......

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by Lpbri
Sun May 02, 2021 2:59 pm
Forum: Technical/Operations
Topic: Brakes and brake fans
Replies: 16
Views: 4442

Re: Brakes and brake fans

Most people test them anyway. Once you re-instate the circuit breakers, all you do is press the button.

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by Lpbri
Tue Apr 27, 2021 1:17 am
Forum: Civil Aviation
Topic: American and the A320neo
Replies: 20
Views: 5762

Re: American and the A320neo

Won’t hear anything this year, but they’re definitely exploring smaller used narrow bodies and the A220. Any airline not looking at used is being silly. As much as I want new aircraft, used are a good bargain now. I'd love to see the A220 at AA, but my opinion is the A319s sit feeding hubs, so purc...

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by Lpbri
Mon Apr 26, 2021 1:48 pm
Forum: Travel, Polls & Preferences
Topic: Will you still wear masks even after the pandemic has subsided?
Replies: 34
Views: 2762

Re: Will you still wear masks even after the pandemic has subsided?

I will wear them when mowing the lawn. Keeps some of the dirt out of my mouth. Also when using hazardous chemicals.

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by Lpbri
Wed Apr 21, 2021 6:58 pm
Forum: Travel, Polls & Preferences
Topic: Air France/Northwest Orient timetable question
Replies: 9
Views: 1932

Re: Air France/Northwest Orient timetable question

My 9/79 NW timetable shows a twice weekly NRT-ANC (th-su): DEP NRT @ 1830 ARR ANC @ 0700: 747 used.

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by Lpbri
Sat Apr 17, 2021 3:11 am
Forum: Technical/Operations
Topic: Is it possible to access the cargo compartment from the passenger compartment?
Replies: 52
Views: 13144

Re: Is it possible to access the cargo compartment from the passenger compartment?

On a 777, you can access the forward cargo from the E&E compartment, which itself is accessed from a hatch in the floor in the first class galley. To open that hatch you need to be able to unlock it. The 787 has no such access.

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by Lpbri
Wed Apr 14, 2021 5:40 pm
Forum: Technical/Operations
Topic: EWIS Cost
Replies: 1
Views: 1603

Re: EWIS Cost

EWIS training is required for all types

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by Lpbri
Mon Apr 12, 2021 4:36 pm
Forum: Technical/Operations
Topic: Crippled by a windshield wiper
Replies: 25
Views: 3879

Re: Crippled by a windshield wiper

I checked an MEL for an A320 wiper. A bit complex, but it says this: If the rain repellant system is operative, there are no MEL restrictions. I believe most carriers may have deactivated their systems, dunno. Otherwise, no rain known within a 5 mile radius of the departure or arrival airports. Appr...

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by Lpbri
Wed Apr 07, 2021 6:29 pm
Forum: Technical/Operations
Topic: Boeing 777 door locks
Replies: 3
Views: 2085

Re: Boeing 777 door locks

Probably a faulty or improperly adjusted door proximity sensor. The passenger door may be locked mechanically, but the prox sensors says otherwise. There are witness windows at the bottom of the door to verify the door is locked, or to say the girt bar fully engages the door cutout locks.

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by Lpbri
Sun Mar 28, 2021 4:25 pm
Forum: Civil Aviation
Topic: AA SEA Long-Haul Ops
Replies: 85
Views: 20576

Re: AA SEA Long-Haul Ops

I wonder if AA even has any wide body gates in SEA. Last time I was there, AAs gates were clustered around the north end of the terminal. It was very congested with narrow bodies, can’t imagine wide bodies.

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by Lpbri
Wed Mar 24, 2021 6:40 pm
Forum: Technical/Operations
Topic: Aircraft Maintenance License
Replies: 4
Views: 1752

Re: Aircraft Maintenance License

It all depends what country you are in. I don’t know what category “A” or “B” is.

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by Lpbri
Mon Mar 22, 2021 5:04 pm
Forum: Technical/Operations
Topic: Question - Cycles - Hours
Replies: 5
Views: 1631

Re: Question - Cycles - Hours

An employee of the respective airline would have access to this information if they know where to look. To my knowledge, it’s not guarded information.

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by Lpbri
Sun Mar 14, 2021 3:28 am
Forum: Civil Aviation
Topic: Dallas / Fort Worth (DFW/DAL) Aviation Thread - 2021
Replies: 224
Views: 35003

Re: AA mainline now flying into Terminal E at DFW?

I don’t think it’s an active gate, just a parking spot.

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by Lpbri
Sat Feb 27, 2021 2:30 pm
Forum: Travel, Polls & Preferences
Topic: Lufthansa DC-10 routes
Replies: 21
Views: 2829

Re: Lufthansa DC-10 routes

ORD-DUS in the summer during the 90s, IIRC.

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by Lpbri
Wed Feb 10, 2021 10:24 pm
Forum: Travel, Polls & Preferences
Topic: Havana Cuba flights, who has pulled out, who is still flying?
Replies: 8
Views: 1831

Re: Havana Cuba flights, who has pulled out, who is still flying?

I would say MIA-HAV flights were the only viable flights to start with.

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by Lpbri
Wed Feb 10, 2021 4:18 am
Forum: Civil Aviation
Topic: 35 years ago merger-mania 1986
Replies: 130
Views: 18058

Re: 35 years ago merger-mania 1986

Britt was acquired by CO.

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by Lpbri
Wed Jan 27, 2021 5:57 pm
Forum: Technical/Operations
Topic: Will future battery tech enable regenerative braking?
Replies: 14
Views: 2834

Re: Will future battery tech enable regenerative braking?

The thing you must remember, aircraft brakes are on landing gear that retracts into limited space. That motion limits what you can do with aircraft brakes. Generators, motors, batteries and the associated wiring and control systems would make this all impractical.

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by Lpbri
Sat Jan 16, 2021 1:19 am
Forum: Technical/Operations
Topic: B777 Fuel system
Replies: 3
Views: 2057

Re: B777 Fuel system

Motive flow for the center tank scavenge jet pumps is provided by the main (wing) tank boost pumps. For those unfamiliar, motive flow from the main tank pumps flow through a jet pump in the center tank, and suck out fuel that can’t be picked up by the center tank pumps, and sends it to the main tank...

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by Lpbri
Thu Jan 07, 2021 12:29 am
Forum: Technical/Operations
Topic: Why are preflight walk-arounds done by pilots and not ground personnel?
Replies: 38
Views: 4984

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

AMT’s do in fact do a walk around, as part of an ETOPs check.

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by Lpbri
Wed Jan 06, 2021 3:43 am
Forum: Technical/Operations
Topic: How do airlines manage maintenance inspections at the spokes?
Replies: 24
Views: 3374

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

I should note that some airlines assign smaller, in-house stations, certain specialties. For instance, I know AA assigns it’s ATL station 737 APU work. PHX was assigned MD-80 APU work. Those respective stations were given spare APUs and all the APU parts they might need. So if an APU change was requ...

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