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737 Ground Power Question  
User currently offlineSXDFC From United States of America, joined Dec 2007, 2881 posts, RR: 15
Posted (3 years 9 months 3 weeks 6 days 14 hours ago) and read 6612 times:

Hello All:

For quite some time at work I've noticed many of our newer 737s (circa 2010+), have the ground power port in a vertical position vs the older model 737s.. Can anyone explain why this is the case?

N949WN, 2010 model 737-7H4


N927WN, 2008 model 737-7H4


ALL views, opinions expressed are mine ONLY and are NOT representative of those shared by Southwest Airlines Co.
3 replies: All unread, jump to last
User currently offlineyeelep From United States of America, joined Apr 2011, 821 posts, RR: 0
Reply 1, posted (3 years 9 months 3 weeks 6 days 9 hours ago) and read 6525 times:

In Boeing speak, it was done to improve "External Power Receptacle Retention and Connectivity". There have been problems with the pins breaking on the new vertical connector, so from line #3852 they went back to the previous horizontal one until changes can be made. Eventually the new vertical connector will be offerred as a retrofit for all NG's.

User currently onlineYukon880 From United States of America, joined Sep 2011, 156 posts, RR: 2
Reply 2, posted (3 years 9 months 3 weeks 5 days 10 hours ago) and read 6263 times:

And for any of those that have ever "plugged-in" in such a fashion, the reasoning behind the change is crystal.

Pratt & Whitney, In thrust we trust!
User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 3, posted (3 years 9 months 3 weeks 5 days 9 hours ago) and read 6247 times:

To avoid the Cable + connector load bearing excessively on the plug point....A chain/cable to the lower end of the plug was used ending in a hook that used to hold the inner wall of the panel,This used to relieve the excess load.

Think of the brighter side!
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