Search found 90 matches

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by 787SIN
Thu Jul 22, 2021 12:19 pm
Forum: Civil Aviation
Topic: UPS B748 Engine Fire at HKG
Replies: 40
Views: 10993

Re: UPS B748 Engine Fire at HKG

A fire that cannot be estiguished by the Fuel Cutoff Valve is a very serious matter an potentially catastrophic. I am sure the FAA will look in deep into it especially vs EROPS. What if this happens in the middle of tha Pacific with the passenger version? As its a GE engine all the wet stuff is und...

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by 787SIN
Thu Jul 22, 2021 10:54 am
Forum: Civil Aviation
Topic: UPS B748 Engine Fire at HKG
Replies: 40
Views: 10993

Re: UPS B748 Engine Fire at HKG

Nice they were able to put her down safely! What'll the costs be for repairing/replacing the engine and repairing the damaged flaps? Looks like it maybe a under cowl fire, if it hadn’t been foamed then may be a couple of TR shop visits, which probably would be repairable but if not $2.5mil each sid...

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by 787SIN
Fri Jul 16, 2021 10:39 am
Forum: Civil Aviation
Topic: BA 787-8 Nosewheel collapse at LHR
Replies: 156
Views: 45951

Re: BA 787-8 Nosewheel collapse at LHR

Interesting that while the AD was only effective in January 2020 the Boeing Requirements Bulletin was issued in March 2019 with a 36 month compliance period from then so over two years since that was issued meaning there was less than a year left for the AD when the incident happened. Strange someth...

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by 787SIN
Wed Jul 14, 2021 5:47 am
Forum: Civil Aviation
Topic: EK205 emergency landing in Milan
Replies: 15
Views: 4847

Re: EK205 emergency landing in Milan

Probably able to leave some dents in an as is condition as will be allowable damage per the SRM, some parts will be repairable, others will require replacement. As this 777 is around 13 years old the use of used serviceable parts should be a consideration rather than new to keep costs reasonable. Pu...

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by 787SIN
Tue Jun 01, 2021 4:30 am
Forum: Technical/Operations
Topic: A321XLR’s rear fuel tank demands special fire-protection conditions
Replies: 224
Views: 47987

Re: A321XLR’s rear fuel tank demands special fire-protection conditions

Pictures above, seem to be aft looking forward, its more clear in the press release image. But you can see the attachment points for the rear wing to body fairings and also in both, the area painted with a white topcoat would be what is under those fairings showing, rest is the green primer ready fo...

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by 787SIN
Fri May 28, 2021 6:34 am
Forum: Technical/Operations
Topic: MD11 CRT displays
Replies: 25
Views: 6167

Re: MD11 CRT displays

May well be sufficient stock of displays available sitting on shelves in the used market, plus if Toshiba was manufacturing the display tube until 2020 then there may also be a reasonable inventory of spare tubes sitting on shelves as well. If this is the case, then it probably won't be cost effecti...

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by 787SIN
Sun Apr 25, 2021 2:42 pm
Forum: Civil Aviation
Topic: EASA orders to replace fuel pumps on some A320s
Replies: 20
Views: 3643

Re: EASA orders to replace fuel pumps on some A320s

The important part of the doc, fair use: "Following the identification of a potential quality issue on an affected part, the locking key of the impeller drive shaft was found loose in the cavity under the impeller. This condition, if not corrected, could, in case of operating a pump while not ...

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by 787SIN
Thu Apr 22, 2021 12:05 am
Forum: Technical/Operations
Topic: A330neo Alternate Nosewheel Steering
Replies: 10
Views: 2613

Re: A330neo Alternate Nosewheel Steering

Probably a manual reversion to an alternate source of hydraulics for the NWS. The A340-500/600 had similar, with yellow pressure being supplied to the NWS actuators in the event of loss of green system, this though was automatic on the -500/600s. So perhaps they have gone for a simplified arrangemen...

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by 787SIN
Wed Mar 31, 2021 10:40 am
Forum: Technical/Operations
Topic: Aircraft Repainting In the 60s through 1990s
Replies: 6
Views: 2453

Re: Aircraft Repainting In the 60s through 1990s

While there’s many videos of recent reprints, what was the practice or process of doing this a long time ago? I'm pretty sure using a razor or similar sharp metallic tool with reckless abandon and scribing every square inch of skin was SOP. Plenty of additional inspections for scribe marks, seen so...

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by 787SIN
Sun Feb 21, 2021 1:50 am
Forum: Civil Aviation
Topic: UA328 engine explosion at DEN
Replies: 607
Views: 113368

Re: UA328 engine explosion at DEN

Would the homeowner who (most likely) lost his truck be automatically covered by United’s insurance or is he SOL with his own insurance? Wonder what the policies around these situations are. United will have Liability coverage, so the owners could lodge a direct claim for property damage if they kn...

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by 787SIN
Wed Feb 17, 2021 11:45 am
Forum: Technical/Operations
Topic: How do passenger windows get so scratched up?
Replies: 7
Views: 2134

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.

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by 787SIN
Mon Jan 04, 2021 1:16 pm
Forum: Civil Aviation
Topic: Updated: QR finds surface coating cracks in early build A350
Replies: 301
Views: 37933

Re: QR finds composite cracks in early build A350

Airbus aircraft go through a C1 through C11 annually which are overnight checks, then it gets a C12 which is several days, then every six years it gets an S-Check which can be several weeks or longer. This is phase check maintenance program. We at US/AA use this on the A320 family and the 330 famil...

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by 787SIN
Mon Jan 04, 2021 12:47 pm
Forum: Civil Aviation
Topic: Updated: QR finds surface coating cracks in early build A350
Replies: 301
Views: 37933

Re: QR finds composite cracks in early build A350

Believe the A350 Maintenance Planning Document has the A Check at every 1,200 hours, then C1 at 36 months, C2 at 72 months, C3 at 108 months and finally a C4 plus Heavy Structural Inspection (HSI) at 144 months. Obviously, this is subject to change when an operator establishes their own Aircraft Mai...

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by 787SIN
Sun Dec 20, 2020 11:54 am
Forum: Civil Aviation
Topic: COVID-19 Aviation Related News & Discussion Thread - Q4 2020
Replies: 321
Views: 28096

Re: All UK-NL air travel banned due to New COVID

cedarjet wrote:
What about U.K. to Düsseldorf followed by a short train ride to Amsterdam?


Wait until everyone in the EU governments are back to work tomorrow. As suspect if this new strain is as different as being reported the whole schengen area will put in restrictions for anyone coming from the UK.

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by 787SIN
Tue Dec 15, 2020 11:20 am
Forum: Technical/Operations
Topic: 747 passenger window identification
Replies: 6
Views: 1661

Re: 747 passenger window identification

Either post a picture or post the numbers on the window.

I could then see whether the numbers are recognised in the IPC.

Although I suspect though it will probably be just a part number and perhaps manufacture date code.

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by 787SIN
Sun Nov 29, 2020 11:09 am
Forum: Technical/Operations
Topic: How Do Desert Conditions at DXB Affect Aircraft Engine Life?
Replies: 2
Views: 1483

Re: How Do Desert Conditions at DXB Affect Aircraft Engine Life?

Don’t know the specific’s of DXB, but harsh environments such as desert regions the dust leads to increased erosion of airfoil leading edges throughout the engine which results in accelerated performance deterioration. But whats possibly more of an issue is that the dust gets into the cooling for th...

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by 787SIN
Wed Nov 25, 2020 11:39 pm
Forum: Civil Aviation
Topic: Volga Dnepr Grounds An-124 Fleet
Replies: 25
Views: 6526

Re: Volga Dnepr Grounds An-124 Fleet

Be interesting to know what kind of inspection has been called for, if its on-wing NDT of the fan disk or will they all require shop disassembly and inspection. The latter will of course be more challenging to implement as it will be reliant on workshop capacity.

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by 787SIN
Wed Nov 25, 2020 2:11 pm
Forum: Technical/Operations
Topic: BA 747 Signage Question
Replies: 2
Views: 1441

Re: BA 747 Signage Question

Normally at the entry doors on the overhead panel, the same panel with the two direct entry way lights. Had two securing clips on the lightplate that you would generally find at least a few when relamping all the signs were broken, which was a pain but generally fixable with a leatherman or other si...

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by 787SIN
Wed Nov 25, 2020 6:31 am
Forum: Technical/Operations
Topic: Onboard Weight and Balance System
Replies: 8
Views: 3173

Re: Onboard Weight and Balance System

747 definitely had a weight and balance computer as an option, the system had electronic load cells on the landing gear that would send information to the computer which was able to derive weight from the sensed loads. It comprised of a Weight and Balance Computer (WBC), calibration module and pitch...

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by 787SIN
Sun Nov 15, 2020 7:49 am
Forum: Technical/Operations
Topic: Covered windows on stored aircraft
Replies: 2
Views: 1565

Re: Covered windows on stored aircraft

Protects the interior as indicated, plus also these aircraft are stored in deserts mostly, so the windows which are mostly just a plastic will be protected from erosion from blown dust and sand. As to why some are done and others are not, probably find they have either not got round to it yet or the...

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by 787SIN
Sat Nov 14, 2020 8:50 am
Forum: Civil Aviation
Topic: Volga-Dnepr AN124-100 emergency landing and overrun
Replies: 58
Views: 13384

Re: Volga-Dnepr AN124-100 emergency landing and overrun

All the cards were totally against them on this day and they still managed to get the plane down basically in one piece and everyone walks away. Well done to the crew - it could have been so much worse. Well done to the crew indeed, plus the design team that included a fifth, mechanical, flight con...

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by 787SIN
Tue Nov 03, 2020 12:14 pm
Forum: Technical/Operations
Topic: C919- purple splotch on the flaps?
Replies: 10
Views: 2211

Re: C919- purple splotch on the flaps?

Too dark for skydrol, might be some kind of flow viz paint, like they use on F1 cars during practice session, its a way of seeing real life flow over a surface.

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by 787SIN
Wed Oct 28, 2020 9:24 am
Forum: Technical/Operations
Topic: 787 System Question
Replies: 15
Views: 3118

Re: 787 System Question

As stated probably the centre hyd pumps given you heard it at multiple flight phases. From my engineer training notes. During normal operation (no failures), the left and right system EDPs are the primary pumps and operate continuously. The primary pump in the Center system is C1 on odd calendar day...

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by 787SIN
Sat Oct 24, 2020 5:54 am
Forum: Civil Aviation
Topic: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels
Replies: 27
Views: 9093

Re: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels

Anybody know how this translates into vertical speed at touchdown / fpm? Gravity is 9.8m/s. Times that by 4.27 = 41.8m/s Times that by 60 = 2510.7m/min Converted to ft/min = ~8237ft/min Someone check my math, but that sound like an owie. Your converting acceleration in to speed. So wouldn’t be corr...

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by 787SIN
Sat Oct 24, 2020 3:47 am
Forum: Civil Aviation
Topic: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels
Replies: 27
Views: 9093

Re: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels

Nomadd wrote:
Where would the sensor for that g figure be located?


Located near the CofG. The VRTA parameter comes from the DFDR accelerometer, which is found under a cabin floor panel.

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by 787SIN
Fri Oct 23, 2020 12:18 pm
Forum: Civil Aviation
Topic: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels
Replies: 27
Views: 9093

Re: Vietjet Airbus A321 suffered 4.27g hard landing, visible damages found on fuselage and nosewheels

Flight load data supplied to FlightGlobal indicates that the vertical force during the landing was 4.27g. What's the average and certified vertical force range? Haven’t got my Airbus manuals with me at the moment but you start talking to airbus for whats classified as severe hard landing at around ...

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by 787SIN
Tue Oct 20, 2020 12:12 pm
Forum: Civil Aviation
Topic: SIA Group News and Discussion Thread
Replies: 533
Views: 18867

Re: SQ to launch SIN-JFK 3x weekly

Whatever aircraft they put it on it, there isn’t going to be a whole lot of passengers coming from a country like the US at the moment. As SG’s inbound requirements would be 14 days stay at home notice in a managed facility and thats if you can get approval to travel to SG as certain groups includin...

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by 787SIN
Sun Oct 18, 2020 10:46 pm
Forum: Civil Aviation
Topic: BA fleet parking thread
Replies: 523
Views: 125689

Re: BA 9178 747-400 to Newquay?

Perhaps a bit of a mad dash to get all the parts off the aircraft and issued with “As Removed” EASA Form Ones before year end as don’t know what country the company's that doing recycling approval was issued in. But if in the UK then come the end of the year they may no longer be able to issue EASA ...

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by 787SIN
Thu Sep 24, 2020 8:46 am
Forum: Civil Aviation
Topic: Australian Aviation Thread - September 2020
Replies: 328
Views: 53594

Re: Australian Aviation Thread - September 2020

It looks like the refit has happened as you can see door U3R has now been plugged, which is a distinctive feature of the refitted birds. It probably just hasn't been repainted. I understand why VCV is used for aircraft storage with it’s dry climate. But as it a desert area, are the skins or paint o...

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by 787SIN
Sun Sep 20, 2020 11:31 pm
Forum: Civil Aviation
Topic: Rossiya Airlines acquiring 7 of BA’s 747-400’s
Replies: 37
Views: 9492

Re: Rossiya Airlines acquiring 7 of BA’s 747-400’s

Probably a nice little investment for Rossiya as they may have got them for not much more than the book value of the engines. Plus the cabins on these BYG series aircraft were re-fitted only in the last five years and can probably densify them relatively cheaply by obtaining seat sets out of the oth...

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by 787SIN
Thu Sep 10, 2020 7:33 am
Forum: Civil Aviation
Topic: How many 747F were built without a SCD?
Replies: 58
Views: 16566

Re: How many 747F were built without a SCD?

Why does the 744F and 748F have a shortened upper deck and not a stretched one like the passenger variants? Simply because the stretched section was conceived for passengers only and on 744 converted freighters it limits the locations for full height pallets which why the -F maintains the original ...

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by 787SIN
Thu Sep 03, 2020 7:21 am
Forum: Civil Aviation
Topic: Australian Aviation Thread - September 2020
Replies: 328
Views: 53594

Re: Australian Aviation Thread - September 2020

https://uploads.tapatalk-cdn.com/20200831/4a62764b115b756ea2f13045bebd0e13.jpg The 1st Qantas Freighter Airbus A321 P2F (converted from passenger variant into freighter) Photo: Marteo Tan. Sent from my iPhone using Tapatalk Nice to see an A321 in QF colours. Just some questions about the conversion...

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by 787SIN
Fri Aug 28, 2020 9:25 am
Forum: Civil Aviation
Topic: Boeing Removes 8 x 787 From Service over Structural Issues
Replies: 182
Views: 40942

Re: Boeing Removes 8 x 787 From Service over Structural Issues

Strange, something by the way the article describes it would surely trigger an emergency AD if there is an immediate risk to flight safety. But nothing on the FAA website as of yet.

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by 787SIN
Wed Aug 19, 2020 11:52 pm
Forum: Civil Aviation
Topic: Qantas announces underlying profit of $124 million for FY19/20
Replies: 18
Views: 3060

Re: Qantas announces underlying profit of $124 million for FY19/20

Also, around 3/4s of the FY for QF was not subject to government-imposed travel restrictions as the Australian FY is mid-year.

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by 787SIN
Fri Jul 31, 2020 10:14 am
Forum: Civil Aviation
Topic: SIA Group News and Discussion Thread
Replies: 533
Views: 18867

Re: SQ A359ULRs all parked?

If it wasn’t for the forward freight bay being unusable with no loading equipment the ULRs probably be being flown occasionally too to the surprise of some passengers. As doubt many flights being currently operated have enough pax to worry much about the cabin config being flown.

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by 787SIN
Fri Jul 31, 2020 1:46 am
Forum: Civil Aviation
Topic: SIA Group News and Discussion Thread
Replies: 533
Views: 18867

Re: SQ cancelled plans for BRU, are loads that bad on EU flights?

As michael said, transiting at Changi is restricted. Believe only those travelling on SQ group airlines can at the moment. Transit has been allowed on certain flights since beginning of June, and has been expanded slightly. But still limited. As its fairly fluid the best info is both on the Changi A...

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by 787SIN
Thu Jul 23, 2020 11:18 pm
Forum: Civil Aviation
Topic: Ethiopian B77F on fire at PVG
Replies: 93
Views: 30111

Re: Ethiopian B77F on fire at PVG

[/quote]Not sure about this frame, but a lot of major carriers self-insure their frames, meaning they would be footing the bill themselves. With large fleet sizes, there is enough spread of risk to justify not paying the premiums and rather covering any loss themselves.[/quote] Very few, if any airl...

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by 787SIN
Wed Jul 22, 2020 11:10 pm
Forum: Civil Aviation
Topic: Ethiopian B77F on fire at PVG
Replies: 93
Views: 30111

Re: Ethiopian B77F on fire at PVG

How does the insurance work for airliners? If one is written off like this will the insurer replace the plane, or do airlines just use a liability only cover? Will be Insured to an agreed value, possibly high $100s as 777F is over $300 million new. Payment would be to the owner of the airframe so i...

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by 787SIN
Wed Jun 17, 2020 12:03 pm
Forum: Civil Aviation
Topic: Australian Aviation Thread - June 2020
Replies: 495
Views: 70937

Re: Australian Aviation Thread - June 2020

I’m still trying to understand why QF are running their A330-300s on cargo only runs to China and Tokyo as opposed to the 787s. I get that the -300 is preferred over the -200 because its belly has more volume. Furthermore I get that the fuel burn advantage of running a 787 on transcon cargo flights...

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by 787SIN
Sat May 23, 2020 1:13 pm
Forum: Civil Aviation
Topic: PIA A320 (flight PK8303) crashes in Karachi
Replies: 740
Views: 211991

Re: PIA A320 (flight PK8303) crashes in Karachi

Sadly if the pictures of the engine scrape damage are right the aircraft is likely to have been terminally damaged after contact with the runway. As both engines could have suffered extensive damage to the main gearboxes as on the CFM56-5B its on the bottom of the fan case. Damage gearboxes would re...

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by 787SIN
Wed May 06, 2020 12:42 pm
Forum: Technical/Operations
Topic: A350 Flight Deck Printer?
Replies: 19
Views: 4137

Re: A350 Flight Deck Printer?

On the Load 15 report being on the printer. Worked in one place the auto print had been selected off in the ACMS software. Found that out after investigating some FDM hard landings that had gone unreported that would have been sufficient to trigger the report 15. So even if you don’t get a report 15...

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by 787SIN
Sat Mar 14, 2020 11:32 pm
Forum: Civil Aviation
Topic: Coronavirus Aviation Related News & Discussion Thread - March 2020 - Part II
Replies: 1993
Views: 344332

Re: UK aviation needs £7.5 billion lifeline

The consequences of airlines failing is massive, think about all the staff in support industries? Direct such as ground handlers, caterers and the such. Then the indirect the ones that supply the caterers, fix the aircraft parts. Then there are the industries the transport particularly aviation indu...

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by 787SIN
Tue Feb 18, 2020 11:51 am
Forum: Civil Aviation
Topic: Why wouldn't the Trent 1000-TEN problems also show up in the Trent XWB?
Replies: 46
Views: 7115

Re: Why wouldn't the Trent 1000-TEN problems also show up in the Trent XWB?

The main issues with the Trent 1000/Ten engine are with the IP section both IPC and IPT. I've not seen this mentioned much but the power offtake for the generators/gearbox is from the IP section on this engine due to the genys and believe the XWB reverts back to Roll's traditional location for power...

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by 787SIN
Wed Jan 15, 2020 2:19 am
Forum: Civil Aviation
Topic: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School
Replies: 565
Views: 58500

Re: A DL 772, Flying LAX-PVG, Makes Emergency Landing And Dumps Fuel On School

Looks like PAL did a better job in the end, ok their aircraft got damaged but it was repaired and put back into service. Whereas Delta dowsed people on the ground. As for fuel, after doing plenty of fuel tank entries during maintenance I can confirm its horrible stuff and even with the use of barrie...

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by 787SIN
Mon Jan 13, 2020 5:01 am
Forum: Civil Aviation
Topic: Manila Airport Closed, Taal Volcanic Eruption
Replies: 44
Views: 8188

Re: Manila Airport Closed, Taal Volcanic Eruption

Wonder if they swept the apron and taxiways of ash? If not guess they are relying on the aircraft to vacuum it up. Give it a few months if the latter is the case and there’ll probably be some unscheduled engine removals for turbine distress. Doesn’t take much ash to block cooling holes in the hot se...

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by 787SIN
Sun Jan 12, 2020 11:59 am
Forum: Civil Aviation
Topic: Manila Airport Closed, Taal Volcanic Eruption
Replies: 44
Views: 8188

Manila Airport Closed, Taal Volcanic Eruption

Recently the airport has just been closed due to the eruption of Taal Volcano. According to Tokyo VAAC the ash is present from SFC to FL550. So pretty high plume. Flights diverting and the airspace over Luzon now looks pretty quiet. Wonder if any aircraft were affected by ash prior to airspace being...

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by 787SIN
Wed Jan 08, 2020 10:38 am
Forum: Civil Aviation
Topic: Airlines Suspending Flights to and over entire or parts of Gulf Region Thread
Replies: 175
Views: 26473

Re: FAA suspends US carrier overflights over entire Gulf Region

Some British Airways flights earlier from Southern India were tracking over Oman then Saudi and then north from the west coast of Saudi.

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by 787SIN
Tue Jan 07, 2020 8:37 am
Forum: Civil Aviation
Topic: The first Airbus A320 to break the 30-year in service mark
Replies: 259
Views: 102393

Re: The first Airbus A320 to break the 30-year in service mark

Another thing that may hamper early frames longevity is if they still have early CFMI -5A or IAE A1 engines on them. Parts for these may be running low globally and any aircraft now being scrapped that have life on internal engine parts may even be going up in value to support what remains in service.

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by 787SIN
Fri Dec 13, 2019 12:10 am
Forum: Technical/Operations
Topic: How much power is needed for pressurization?
Replies: 40
Views: 3440

Re: How much power is needed for pressurization?

The 787 does have compressed air system similar to bleed air, as essentially the CACs are generating hot bleed air. Packs are pretty much the same as any other aircraft, bar the ram fan that is electrically driven rather than off a shaft on the pack. Reason for that is cooling on the ground for the...

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