VNAV Disconnect In Cruise mode

[Ed Callan 0]

Hello All, On my last flight, about half way thru the vnav function disconnected. The flight plan was correct with no route discontinuity. I was able to engage it again but again it disconnected a few minutes later still at cruise altitude. I've had this problem before but I figured it was a setup problem. I rechecked clb, crz, and des but all was correct. Anybody else had this problem. thanxEd

[crvm 0]

Sorry Ed but you have not given enough information for us to help you. Best Wishes,[h4]Randy J. Smith[/h4]http://www.rawbw.com/~bdoolin/shinault/southparkcartmad.gif[h3]PMDG 747![/h3]Caution! Not a real pilot, but do play one on TV ;-)ASUS KV8 DLX | AMD 3200 64 | 1 GIG PC 3200 DDR | GIGABYTE 5700 ULTRA | ViewSonic VP192b 19" |

[Guest Agamemnon]

HelloJust a guess but it could a wind induced over/under speed disconnect.Just a guessTroy

[Ed Callan 0]

737-600...fl330..0.78...m/s weather...