B777 gear still down after take off?
Join Date: Sep 1999
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No need to change the take-off figures
Thats incorrect according to the B777 AFM and MEL, if the aircraft departs with brakes capped or removed, the complete takeoff phase is planned with the gear down, the takeoff figures therefore change.
Bart O'Lynn.
You are obviously not used to watching classic B747's taking off!
Mutt.
Thats incorrect according to the B777 AFM and MEL, if the aircraft departs with brakes capped or removed, the complete takeoff phase is planned with the gear down, the takeoff figures therefore change.
Bart O'Lynn.
You are obviously not used to watching classic B747's taking off!
Mutt.
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Mutt,
It wasnt a classic. It was a 400 and after 17 years in africa watching overladen aicraft depart I am more than qualified to tell when a company is taking the p1ss.
What are you doing out of the middleeast forum anyway. There are outsiders to slate , now get back there at once
It wasnt a classic. It was a 400 and after 17 years in africa watching overladen aicraft depart I am more than qualified to tell when a company is taking the p1ss.
What are you doing out of the middleeast forum anyway. There are outsiders to slate , now get back there at once
Couldonlyaffordafiver
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If I remember correctly, leaving the gear down quite seriously affects second segment climb (certainly looks like it from the pointy end!! 
), possibly even the third.
I've had this out of LHR and the performance is reduced so much that the RTOW is reduced from 267 tons to 220 tons. Makes a hell of a racket as well!!
), possibly even the third.I've had this out of LHR and the performance is reduced so much that the RTOW is reduced from 267 tons to 220 tons. Makes a hell of a racket as well!!
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Bart
PIA have no B747-400 in fleet only
B747 200 and 300s but yes they do make you wonder sometimes and the one last night was very low over Stockport
( probably about 1500-2000) on departure
Out of interest there were two B777 that delayed putting their gear up until late yesterday and both PIA
G-I-B
PIA have no B747-400 in fleet only
B747 200 and 300s but yes they do make you wonder sometimes and the one last night was very low over Stockport
( probably about 1500-2000) on departure
Out of interest there were two B777 that delayed putting their gear up until late yesterday and both PIA
G-I-B
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Bart,
Discussions in ME forum are a little "deep" at the moment, so I came out to play
Searched www.airliners.net for PIA B747-400 pictures in Manchester, there were no hits. There are pictures of Classics... So not really sure what you were looking at in Africa, but I dont think that they were -400's....
Now i will go back to the sandpit....
Mutt
Discussions in ME forum are a little "deep" at the moment, so I came out to play
Searched www.airliners.net for PIA B747-400 pictures in Manchester, there were no hits. There are pictures of Classics... So not really sure what you were looking at in Africa, but I dont think that they were -400's....
Now i will go back to the sandpit....
Mutt
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I also saw the aircraft with its gear down for some time after take off. ( didn't see it go up )
If it was planned prior to departure it would be normal to advise ATC of the case before take off.
Luckily it wasn't a MIRSI departure or they could of found the wheels missing when they arrived at Islamabad !!
If it was planned prior to departure it would be normal to advise ATC of the case before take off.
Luckily it wasn't a MIRSI departure or they could of found the wheels missing when they arrived at Islamabad !!
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> Joe Monsoon wrote: Hello all from what rember on B767 ADP inop air demand pump for the hydraulic . MEL asks for landing gear down 2 mins after takeoff its cos no auto braking on gear retraction . Maybe its same on B777
I don't see this for the 767. Here is what I see:
29-11-03 Air Driven Pump (ADP)
(M)(O) May be inoperative provided:
a) Hydraulic Motor Generator (HMG) is not required,
b) Both center system electric pumps operate
normally, and
c) Appropriate performance adjustments are applied.
EICAS STATUS MESSAGES NONE
29-11-03 ADP Switch Air Driven Hydraulic Pump INOP
NOTE: HMG is required for ETOPS routes if an IDG or APU generator is inoperative. HMG is not required for non-ETOPS.
(O) PROCEDURES
NOTE: During periods of high demand, C HYD SYS PRESS caution message and C HYD SYS MAINT status message may display. If the center hydraulic system pressure remains below 2800 psi for 60 seconds or more, with both engines running, then the C HYD SYS MAINT message will latch.
1. With the ADP inoperative, the landing gear retraction/extension times will increase to approximately 2½
times normal. Landing GEAR DISAGREE message may display.
2. Flap retraction and extension times will increase approximately 30%.
3. When the ADP is OFF, the HMG will be dropped offline during high hydraulic demand (landing gear, flaps). The HMG will operate normally on the center electric pumps during low hydraulic demand.
I don't see this for the 767. Here is what I see:
29-11-03 Air Driven Pump (ADP)
(M)(O) May be inoperative provided:
a) Hydraulic Motor Generator (HMG) is not required,
b) Both center system electric pumps operate
normally, and
c) Appropriate performance adjustments are applied.
EICAS STATUS MESSAGES NONE
29-11-03 ADP Switch Air Driven Hydraulic Pump INOP
NOTE: HMG is required for ETOPS routes if an IDG or APU generator is inoperative. HMG is not required for non-ETOPS.
(O) PROCEDURES
NOTE: During periods of high demand, C HYD SYS PRESS caution message and C HYD SYS MAINT status message may display. If the center hydraulic system pressure remains below 2800 psi for 60 seconds or more, with both engines running, then the C HYD SYS MAINT message will latch.
1. With the ADP inoperative, the landing gear retraction/extension times will increase to approximately 2½
times normal. Landing GEAR DISAGREE message may display.
2. Flap retraction and extension times will increase approximately 30%.
3. When the ADP is OFF, the HMG will be dropped offline during high hydraulic demand (landing gear, flaps). The HMG will operate normally on the center electric pumps during low hydraulic demand.
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This gear down thing is probably a PIA procedure thing. After having seen numerous northbound takeoffs out of OMDB flying past downtown I have noticed just about all PIA aircraft that takeoff have the gear down up to at least 2000'. At times I have seen them fade out of view and it still appeared that the gear was down. This was on Boeing and Airbus products. (I think PIA has some Airbuses)
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Didn't see it so I don't know how long the gear was down for. However, if memory serves, flying with your gear down is a signal of unlawful interferance (i.e. hijack?) , so well done to ATC for asking.
LP
LP
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I stand corrected, but it was still more like an antonov off a 40'celcius strip than a perf A aircraft operating in the first world , despite its origins. But lets not allow performance to intefere with Manchesters profits, ...until Knutsford or stockport disappear
It was a main gear brake deactivated due to wear limits having been reached. Brake was deactivated at Base due to being nil stock!!!
Humus Motor
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On a (vaguely) similar subject - and to follow up HEATHROW DIRECTOR's banter - he may remember a BA Tristar at the hold of 28L (it was that long ago) behind a Cessna 310 who was about to line up ... Helpful 1011 pilot says ...
"Golf Alpha Bravo fom Speedbird 123, you appear to have your steps still down"
"Oh, thanks very much Speedbird, but actually they retract with the wheels"
"Blimey, do you get passengers changing their minds that late??!!"
Love it
"Golf Alpha Bravo fom Speedbird 123, you appear to have your steps still down"
"Oh, thanks very much Speedbird, but actually they retract with the wheels"
"Blimey, do you get passengers changing their minds that late??!!"
Love it
