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-   -   MAS A330 BNE leaves pitot covers on (https://www.pprune.org/rumours-news/611306-mas-a330-bne-leaves-pitot-covers.html)

Buzzing 19th Jul 2018 23:40

MAS A330 BNE leaves pitot covers on
 
The flight returned to Brisbane airport an hour after being airborne due to a technical fault.

It had an emergency landing ... loss of air speed ... only to find out covers still on over the pitot tubes.

One has to question what sort of walk around did the first officer do? It's a basic step from the days of flying school.

(I have a pic of the covered pitot tubes but can't post as I'm new.)

Maisk Rotum 20th Jul 2018 03:49

MAS A330 BNE leaves pilot covers on
 
An MAS A330 took off from BNE with the pitot covers on. Circled for a while then landed fast damaging nose gear. How does this happen- too many questions.

TurningFinalRWY36 20th Jul 2018 03:59

Question remains how did they get airborne in the first place? If all pitot covers were left on then there would not be an IAS increase on takeoff roll, therefore you reject. Or was 1 or 2 pitot covers left on and 1 side had airspeed information and the other pilot did an improper crosscheck at the 100/80kt call

maggot 20th Jul 2018 04:02

Covers are fitted each turn in BNE due to a mud wasp issue.

Buzzing 20th Jul 2018 04:09


Originally Posted by maggot (Post 10201111)
Covers are fitted each turn in BNE due to a mud wasp issue.

supposed to be removed an hour before departure ... but clearly someone forgot ... and wasn't checked either ...

By George 20th Jul 2018 04:28

Blocked the Runway for over an hour. Interesting to see the main gear doors dangling down. ( manual extension?). Also both main gear doors appeared damaged. Couple of Pilots standing to attention in an office somewhere, poor devils. How did everybody miss those red tapes?

Station Zero 20th Jul 2018 04:38


Originally Posted by By George (Post 10201120)
Blocked the Runway for over an hour. Interesting to see the main gear doors dangling down. ( manual extension?). Also both main gear doors appeared damaged. Couple of Pilots standing to attention in an office somewhere, poor devils. How did everybody miss those red tapes?

The alternate extension is used in the advent of all three ADRs being switched off for unreliable airspeed hence the doors open and unable to taxi off runway.

Lots of human factors at play here by the looks of it...

clark y 20th Jul 2018 05:29

Ignoring the flight crew issues, what about the ground crew who left them installed or the pushback crew who didn't notice them?

chuboy 20th Jul 2018 05:52

Apparently yellow hydraulics were lost as well resulting in no steering after landing. Hence the tug.

The pitot covers have been used at least since Etihad declared a mayday after departure a few years back with no airspeed. Nice little mud wasp nest found on inspection. Amazing how quickly they can build a nest.

Old King Coal 20th Jul 2018 07:59

https://cimg5.ibsrv.net/gimg/www.gmf...6c50b6da8.jpeg

EDLB 20th Jul 2018 08:29

You can see even a third cover. Makes me wonder why they did not abort. How did they check the rotation speed? Beside looking out of the window the airspeed indicator is the most watched instrument on the TO-run. At least for me.

Perrin 20th Jul 2018 09:24

Mud wasps
 
During my time in Guam during the Vietnam war we had big problems with them, hence covers on at landing with streamers so long you couldn't miss them. Did not help with EPR probes so high EPR was panels off air pressure blow out with 8 engines it was a pain in the A##.
Long streamers don't cost much.
Keep them up boys.
😁🗽😁

scotneil 20th Jul 2018 10:12

To By George: please don't offer sympathy for the "poor devils" - I'm all for forgiveness of mistakes (and learning lessons from them) but this is simply incredible - very basic error. I don't understand why the problem wasn't spotted on the ground, at least during T/O roll. Consequences could be disastrous - remember Birgenair in 1996.

302szd55 20th Jul 2018 10:23

Appalling deviation from normal procedures all round and yet another nail in the coffin of MAS's already tattered reputation. Think it may be time to add them to AF as an airline I will avoid permantly.

Discorde 20th Jul 2018 10:31


Originally Posted by scotneil (Post 10201357)
Consequences could be disastrous - remember Birgenair in 1996.

The confusion amongst the Birgenair pilots was exacerbated by contradictory warnings (overspeed plus stick-shaker). Even if they had successfully recovered (using sensible pitch/thrust settings) they would have had to contend with the distraction of continued overspeed warnings. It's worth knowing which CBs to pull in the event of false overspeed or stick-shaker warnings so this distraction can be removed.

For the B757/767 the CBs are:
AURAL WARNING: B16 & H35
STICK SHAKER: C11 & J21

student88 20th Jul 2018 10:34

I bet you're all such perfect pilots who never make a mistake.

Why are you assuming it was the FOs walk around? The most 'basic' of errors are the easiest ones to make..

601 20th Jul 2018 10:44


supposed to be removed an hour before departure
With Brisbane wasps, 5 minutes max

Fifthleg 20th Jul 2018 11:17

What about the turkey that did the pushback-unforgivable really. Last line of defence.......hopeless!

2efiss 20th Jul 2018 11:27

Who signed off tech log entry?

krismiler 20th Jul 2018 13:17

Echos of the AeroPeru accident in 1996 where the static vents were covered with tape whilst the aircraft was being cleaned.
https://aviation-safety.net/database...?id=19961002-0

At least this time everyone walked away so lessons have been learnt, with training in unreliable airspeed indication now being given. It still shouldn't have happened though.


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