Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
737 Flap/slat Hydraulic Systems  
User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 17
Posted (9 years 5 months 2 weeks 3 days 19 hours ago) and read 7848 times:

The flaps/slats on Delta's 737-200s are powered by A system hydraulics while the flaps/slats on our 737-300s and 800s are powered by B the system.

Three questions. Do all 1st gen 737s have A system powered flaps? Do all subsequent generations have B system powered flaps? Most importantly why did Boeing switch the system that powered the flaps from A to B?

Thanks
Dl757Md

p.s. No this is not another A vs B thread.......or is it?  Wink


757 Most beautiful airliner in the sky!
3 replies: All unread, jump to last
 
User currently offlineCdfMxTech From United States of America, joined Jul 2000, 1341 posts, RR: 26
Reply 1, posted (9 years 5 months 2 weeks 3 days 11 hours ago) and read 7793 times:

I can tell you that from -300 on up, "B" system hydraulics are used.
I do not know why the change was made.


User currently offlinePSAjet17 From United States of America, joined Dec 2003, 341 posts, RR: 0
Reply 2, posted (9 years 5 months 2 weeks 3 days 5 hours ago) and read 7762 times:

According to the Boeing 737 Technical Site:

The 100 and 200 aircraft used two Engine Driven Pumps (EDPs) for the A system and two Electric Motor Driven Pumps (EMDPs) for the B system. All 737s from the 300 onward split the systems with one EDP and one EMDP for each system (A and B).

They could have realigned the components on each system when they made this change.

www.b737.org.uk/index.htm


User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 3, posted (9 years 5 months 2 weeks 2 days 23 hours ago) and read 7735 times:

Quoting Dl757md (Thread starter):
Most importantly why did Boeing switch the system that powered the flaps from A to B?



Quoting PSAjet17 (Reply 2):
The 100 and 200 aircraft used two Engine Driven Pumps (EDPs) for the A system and two Electric Motor Driven Pumps (EMDPs) for the B system. All 737s from the 300 onward split the systems with one EDP and one EMDP

By Splitting the System Pressurization source,each System [A,B] had one EDP and one EMDP each.
regds
MEL



Think of the brighter side!
Top Of Page
Forum Index

Reply To This Topic 737 Flap/slat Hydraulic Systems
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
737 Flap-track Fairing Vibration posted Sat Nov 11 2006 02:40:15 by AgnusBymaster
Is Fly By Wire Safer Than Hydraulic Systems? posted Sat May 20 2006 17:29:55 by A320ajm
A319 Hydraulic Systems posted Fri Nov 26 2004 20:42:05 by NWB757300
Precautions 2 B Taken On Hydraulic Systems posted Sun Jun 13 2004 11:37:01 by Kaddyuk
737-200 - Is Hydraulic Fluid Leak Normal? posted Sun Feb 15 2004 03:43:43 by FLYtoEGCC
Light On 737 Flap Track Fairings posted Sun Aug 24 2003 20:35:04 by N243NW
B727 Flap/Slat Trick posted Sun Apr 28 2002 20:40:34 by TechRep
Flap Track Systems posted Sat Oct 14 2006 14:25:20 by Avro85
Not All 737-200 Leading Slat All Same? posted Sun Aug 1 2004 19:38:03 by Western737
MD-83 Flap & Slat Retraction After T/O? posted Sun Jan 4 2004 22:32:49 by Mr Spaceman

Sponsor Message:
Printer friendly format