B737 NG "Pack Trip Off"
Hi all,
I know this has been mentioned B4, but I can't locate the post to find out the response.
My question is:
In the B737 NG QRH, the checklist "Pack trip Off" talks about:
"At level off; Airspeed...290 knots Minimum", with the note saying that the flight deck and cabin temperatures may increase rapidly below 290 knots.
This is with both packs off, flying at 10,000 feet, with the cabin altitude increasing, and the outflow valve presumably closed.
I can't work out how/why the internal temperature of the aircraft is affected by the cruise speed, with both packs off (rapidly).
Can anyone help with a reasonable, short explaination?
Cheers