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-   -   Air Uganda, crew forgot to set flaps? (https://www.pprune.org/rumours-news/494098-air-uganda-crew-forgot-set-flaps.html)

750XL 28th August 2012 18:25

Air Uganda, crew forgot to set flaps?
 

:sad:

hetfield 28th August 2012 18:33

Ooooops....

mach2.6 28th August 2012 18:45

checklist? what's that?
 
Great idea! Really cuts drag between brake release and V1, resulting in a shorter takeoff roll by, ohhh, say....35 feet. :eek:

FullWings 28th August 2012 18:46

They'd obviously read on PPRuNe about the short-field technique (and I'm giving the benefit of the doubt here by calling it a technique) of deploying the flaps during the takeoff roll.

Move on, nothing to see... :rolleyes:

Machinbird 28th August 2012 18:58

Reminds me of the time I was a SLF on a Navy C-9 at NQX and they made a no flap takeoff! :eek:

I don't know to this day whether or not that was an allowed configuration, but somehow, I doubt it was. At least they handled it well, but we were really moving at liftoff.:confused:

hetfield 28th August 2012 19:05


of deploying the flaps during the takeoff roll.
Wasn't it AF 707 many moons ago who did that?

Easy Street 28th August 2012 19:13

Perhaps the SLF should have told the cabin staff about it :E

hetfield 28th August 2012 19:15

The SLF just care about cheap tix.

But maybe the T/O config warning was in a working state opposite to Spanair accident, same reason.

Lonewolf_50 28th August 2012 19:16

Based on that video clip, it was 15 seconds from beginning of forward movement to beginning of flaps beginning to lower.

I seem to recall a 727, Delta, in DFW, (Corrected to 1988!) that didn't lower flaps on takeoff ... flight ended in tears. :{

Delta 1141. One would hope that the lesson learned from that crash might be standard training fodder.

Skipness One Echo 28th August 2012 20:03

Always surprises me that I have photos of two seperate US Airways B767-200s heading across the pond departing with no flaps !
Had I been on board I suspect I would have been bricking it!

tchaikovsky 28th August 2012 20:06

What's that light spot thingy on the ground that moves from the piano keys towards the trailing edge between 12-17 seconds on the film??

hetfield 28th August 2012 20:07

Don't know 767,

but on A300 taking off with flaps was very seldom, mostly just slats.

brakedwell 28th August 2012 20:09

Nairobi - November 1974 - Lufthansa 747 crashed after take-off because crew failed to set LE flaps.

Airbubba 28th August 2012 20:13


Always surprises me that I have photos of two seperate US Airways B767-200s heading across the pond departing with no flaps !
Had I been on board I suspect I would have been bricking it!
I realize that you may possibly not be a pilot but flaps 1 is a legal takeoff setting in the 767. The flaps stay up but the slats are extended to the takeoff position.

Here's an example on a takeoff out of PHL:


PJ2 28th August 2012 20:16

Likely flaps/slats were set when the takeoff configuration warning horn probably sounded as the thrust levers were set for TO thrust.

Re, ". . . nothing to see", that's exactly the outcome the system was designed for so there's a great deal to see. The system worked as designed and likely prevented another Spanair.

orion1210 28th August 2012 20:56

What are the advantages of a flapless or reduced flap takeoff and when would you elect to carry one out?

Same for landing config?

Airbubba 28th August 2012 21:00


Likely flaps/slats were set when the takeoff configuration warning horn probably sounded as the thrust levers were set for TO thrust.
That is probably how it has been handled many times in the 'old days' here in the U.S. Often the takeoff checklist itself was completed on the roll by 80 knots.

However in these enlightened times with FOQA, FDM, ASAP and all the rest you are probably better off to do a low speed reject, find out for sure why the horn went off, put it in the logbook or not depending on the carrier and try it again after being sure you don't need a sign off. And do a mea culpa with all crewmembers on ASAP and NASA reports to CYA.

Moving the flap lever on the takeoff roll on a modern plane causes all heck to break loose with the warnings as these guys at Charlie West found out:

Pilots Engaged in Small Talk Before Jet Botched Takeoff - WSJ.com

The Captain moved the flap lever from flaps 8 to flaps 20 on the takeoff roll and botched a reject over V1, but was saved by the crunchy EMAS at the end of the mountaintop runway.

parabellum 28th August 2012 21:26

We used to do flapless in the Middle East on the BN2 Islander as it gave a higher speed at rotation and we were slightly better off if we lost an engine. Nothing illegal about a flapless takeoff if it can be done safely, within the AFM and SOPs.

Lonewolf_50 28th August 2012 21:27

OK:

Actually the lesson learned from the DFW 727 was ...never rotate beyond normal takeoff attitude with 6000' of runway remaining. They were within 8 or so knots of 'flying', even no flap. (additional lesson was don't pull the takeoff warning CB to cross the 'zulu' bridge)
PJ

Likely flaps/slats were set when the takeoff configuration warning horn probably sounded as the thrust levers were set for TO thrust.
Re, ". . . nothing to see", that's exactly the outcome the system was designed for so there's a great deal to see.
Thank you both. :ok:

screwballburling 28th August 2012 21:35

This is obvious to most of us.

Here are just 5, of the many things that are vitally important, in attempting to get airborne.

F. Flaps.

A. Air-brakes

R. Correct Runway.

T. Trims set.

S. Speeds Bugged.

Regardless what is written on your company checklist, it only takes 30 seconds of farting around, to do this extra vital check. There are usually,no second chances. That extra 30 seconds of FARTS could save the day.

If we fly long enough and often enough, something vital will get missed during the DVA's

My 2 cents worth.

BobnSpike 28th August 2012 21:52


orion1210
What are the advantages of a flapless or reduced flap takeoff and when would you elect to carry one out?

Same for landing config?

More flaps reduce takeoff distance at the expense of reduced initial climb performance. Less flaps improve initial climb performance at the expense of increased takeoff distance.

The same is true regarding flap setting for landing. More flap = less runway required but less climb; less flap = better missed approach/rejected landing climb but more runway required. Usually this is less of an issue, but once in a while a reduced flap setting is required due to obstacles in the missed approach path.

The flap setting used is based on whether runway length or climb performance is the most limiting factor.

con-pilot 28th August 2012 22:32


Actually the lesson learned from the DFW 727 was...
When I saw the post accident photos there was something that bother me. So a few years later when I attended the NTSB aircraft accident school I brought up my inquiry.

When viewing the left front side of the fuselage, the front left main cabin door was open. That in itself would not be that remarkable, except that the way the fuselage was laying on the ground, the bottom of the door was buried in the dirt. There was no way for that door to be in that position unless it was opened before the aircraft came to a complete stop.

The Flight Attendant sitting in the jump seat next to the door swore that she did not open the door until the aircraft came to a complete stop. Then there seemed to be some confusing on just who actually opened the door.

After some reviewing all the information we had access to, we decided that the FA sitting next to door had to have opened that door before the aircraft came to a stop, but that she just didn't remember it.

I went to 727 type school shortly after that accident, you can figure out the one thing that was really drilled into us.

But you are quite correct OK, if they would have left it on the ground until they ran out of runway, then rotated, it would have flown. Same type deal with the AA DC-10 accident at ORD, if they would have just held the attitude they had, it would have flown.

But, that's all 20/20 hindsight, easy to say or write when you're sitting at a desk.

Flingwing47 29th August 2012 00:21

lights
 
the spot is the retractable wing landings lights moving from stowed (light facing down) to extended position.

SMOC 29th August 2012 00:44


Nairobi - November 1974 - Lufthansa 747 crashed after take-off because crew failed to set LE flaps.
They set the flap correctly however they managed to isolate the leading edge bleed air completely therefore preventing the leading edge from extending. At the time there was no indication of LE position to let the crew know.

broadreach 29th August 2012 00:47

Orion and BobnSpike,
If I may, another reason is to preserve the undercarriage and the airframe. On a long runway the aircraft will probably eventually get airborne but at a much higher speed. Unless the runway is glass-smooth every little surface irregularity will be very forcefully transmitted to the hull.
On the 767 mentioned earlier there must be a weight/lift/temp etc curve that allows the flapless takeoff procedure, i.e. with certain weights and on certain runways it's allowed.
My only experience of such a takeoff was years ago on a Vasp 737-200, GIG/CGH, between 30% and 50% full. It took ages, rattled and shook like a Model-T Ford on a rocky road, overhead bins opened and handluggage fell out.
I am not a pilot nor am I any longer associated with aviation. But I'd venture a guess that a takeoff like the one just mentioned would take a toll on the hydraulics - and much more - equivalent to several years of normal operation.

BobnSpike 29th August 2012 01:27

Respectfully, airframe wear and tear is not considered in takeoff or landing performance calculations in the commercial world. It's about performance and payload.

Check Airman 29th August 2012 02:50

I can only imagine what would happen if something similar had been done at my company. What the hell was this crew thinking?

At the very least, I'd be running everything after the after start checklist. If you forgot to set the flaps, what else may you have forgotten?

Pugilistic Animus 29th August 2012 03:06

BelArgUSA used to warn to always check the three killers Trim, Flaps and Spoilers!!! Screw SOPS there's NEVER an excuse for this!!!:=:=:=:=

http://www.pprune.org/3648705-post15.html

Check Airman 29th August 2012 04:18


BelArgUSA used to warn to always check the three killers Trim, Flaps and Spoilers!!! Screw SOPS there's NEVER an excuse for this!!!:=:=:=:=
Where's BelArgUSA? Haven't seen him posting in a while.

Pugilistic Animus 29th August 2012 04:34

I'm not quite sure I think he's ok fron some of our past PMs

I really miss his wise and informative posts...:(

bubbers44 29th August 2012 04:40

We got totally distracted on the descent in a 757 one day and at 200 ft did my usual gear, flaps and speed brake armed check. No speedbrakes armed and not one item had been done on the mechanical checklist. Since the FO was landing I whipped through the items in about 10 seconds before touchdown. I couldn't believe we forgot the checklist but we did.

dwshimoda 29th August 2012 04:49

Config warning...
 
one of our stop items. Why the hell did they carry on?

Pugilistic Animus 29th August 2012 04:50

Bubbers44

We've all made those types of errors; we've all gotten something into the red arc on one of the guages...but we must never do what this crew did as it defies airmanship totally...There's no excuse for forgettingto set TO flaps---NONE

Pugilistic Animus 29th August 2012 04:53

dwshimoda ...Config warning should NOT be relied upon it has failed in the past---I forgot the case but best to pretend there is no such animal IMHO

Why did they continue?...They were muppets!!!...:*

orion1210 29th August 2012 05:05

Parabella and bobnspike, thanks for that

Check Airman 29th August 2012 05:53


...There's no excuse for forgettingto set TO flaps---NONE
I disagree. You can forget to do it for any number of reasons. If something interrupts your normal flow, and things get rushed after that, it can happen. I can imagine where you reach for the flap lever, then ATC calls with a funny request, then your hand never gets back to the lever.

What is unforgivable IMO is that they continued the takeoff.

Pugilistic Animus 29th August 2012 06:39

Check Airman I disagree

yes, In some cases distractions can interrupt a flow or cause you to miss a minor item...that shouldn't kill anyone

But IMHO if it's critical Item in an extremely critical but optional phase of flight---You make sure you check those critical items, if you have to re-run a check list then you do...but Pitot heat,if not automatic, Anti Ice pressuriztion performance or whatever else may kill you must never be comprimised just to make a takeoff---up aginst slots and duty time limitations? oh well company's problem better late than dead---:cool:

Now right before a takeoff we know that there are three well known killers--- airmanship dictates that you STOP THAT AIRPLANE!!! and check them...whether you miss your slot, or not...we've repeated these mistakes long enough to know they can be unforgiving...

WE NEED TO JUST STOP!

framer 29th August 2012 06:42

He didn't Say you can't forget to set flap, he said there is no excuse, and he's right. Actually....I can think of one excuse, if you joined a rubbish airline that paid lip service to training and safety when you were 19 years old, and continued through to a command in an airline devoid of any decent safety culture, and then forgot to set the flaps, I would say it is your management teams fault for not wearing the cost of decent training.

fox niner 29th August 2012 07:36


.....and continued through to a command in an airline devoid of any decent safety culture, and then forgot to set the flaps, I would say it is your management teams fault for not wearing the cost of decent training.
But first and foremost it is your own bloody fault and responsibility that you are in the company you are in and you should leave immediately. If management and safety culture are bad, apply for a job somewhere else. Before you get killed/fried/blamed for things that are beyond your control.

cockney steve 29th August 2012 08:02

^^^^ Like what he said, And don't forget that the tyro Aviator is able to tap into many lifetimes' wisdom and experience, via PPRuNe,just for the cost of an internet connection.

probably the best bargain in their lifetime.. As the man said....NO EXCUSE.


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