gumbyjan
6th Jul 2009, 07:13
I have a question which has us all here stumped. We have 5 737-700s with the 10.7 software. The small fleet and pilot population do not give us much to go on so I am referring to the expert. I doubt you will get stumped but feel free to pass this along if needed.
Here is our situation. After a Flaps 1 takeoff and reaching level off height we select 210 knots (not up for reasons of ATZ rules here in the kingdom) and once we reach the 1 caret we select flaps up and select N1. After reaching 2500AGL (again a kingdom thing) we select VNAV expecting the speed bug to move to 250kts. What happens many times on one particular airplane is that the speed bug reverts to the UP speed. Neither changing the climb speed on the climb page or the CI or any other speed changes do anything. We also wiggle the flap handle, check the flap and LED positions, and generally scratch our heads to no avail in changing the speed bugs position.
The one thing that I can find is on the climb page. Instead of MAX RATE, MAX ANGLE, ENG OUT I find a ALL ENG prompt at LSK 4L. Selecting this and executing then selecting ECON and executing will fix the speed Bug. What gives? The engines are both running! We usually notice an engine failure.
I am a training Captain here and it is getting embarrassing when I have to say "I dunna know, but here is the fix”. Any help would be appreciated!
I appreciate you all thinking this one over. Blue skies.
:ugh:
Joe Nepute
Contact Me at:
Box 10498 C/O Saudi Aramco
Dhahran 31311, Saudi Arabia
Phone: 966-3-878-6047
cell: 966-50-683-4080
E-mail: [email protected]
or [email protected] (http://us.mc564.mail.yahoo.com/mc/[email protected])
Here is our situation. After a Flaps 1 takeoff and reaching level off height we select 210 knots (not up for reasons of ATZ rules here in the kingdom) and once we reach the 1 caret we select flaps up and select N1. After reaching 2500AGL (again a kingdom thing) we select VNAV expecting the speed bug to move to 250kts. What happens many times on one particular airplane is that the speed bug reverts to the UP speed. Neither changing the climb speed on the climb page or the CI or any other speed changes do anything. We also wiggle the flap handle, check the flap and LED positions, and generally scratch our heads to no avail in changing the speed bugs position.
The one thing that I can find is on the climb page. Instead of MAX RATE, MAX ANGLE, ENG OUT I find a ALL ENG prompt at LSK 4L. Selecting this and executing then selecting ECON and executing will fix the speed Bug. What gives? The engines are both running! We usually notice an engine failure.
I am a training Captain here and it is getting embarrassing when I have to say "I dunna know, but here is the fix”. Any help would be appreciated!
I appreciate you all thinking this one over. Blue skies.
:ugh:
Joe Nepute
Contact Me at:
Box 10498 C/O Saudi Aramco
Dhahran 31311, Saudi Arabia
Phone: 966-3-878-6047
cell: 966-50-683-4080
E-mail: [email protected]
or [email protected] (http://us.mc564.mail.yahoo.com/mc/[email protected])