Latest release not stable in AP
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JPL19
- Posts: 45
- Joined: Sat May 25, 2013 5:59 pm
- Location: New Mexico, USA
Latest release not stable in AP
I have downloaded and installed the latest version released a few days ago. Prior to this I had not experienced the unstable issue in FLC.
Climbing on FLC mode at 170kts I leveled off at FL160 until cleared higher, AP remained engaged holding altitude and NAV (FMC) mode. Cleared higher I went back to FLC mode and slowly decreased the climb speed from where I had accelerated to in level flight (240kts) down to about 220kts, keeping ITT at about 790. I decided to keep 220kts as a cruise climb, and it seemed stable through about FL200 when the AP horn sounded, AP disengaged (red arrow point to left) and the plan went spiraling and spinning out of control. I managed to get to level flight, but, every time I would try and reengage the AP the aircraft would again spin and spiral out of control, I finally just quit the flight.
Flight plan was manually entered in FMC: ENCN LANTI2A LANTI M604 DANKO P15 VAXIT DCT CUTEL DCT SAB UM89 TRN TRN2R EGPK
Joe
Climbing on FLC mode at 170kts I leveled off at FL160 until cleared higher, AP remained engaged holding altitude and NAV (FMC) mode. Cleared higher I went back to FLC mode and slowly decreased the climb speed from where I had accelerated to in level flight (240kts) down to about 220kts, keeping ITT at about 790. I decided to keep 220kts as a cruise climb, and it seemed stable through about FL200 when the AP horn sounded, AP disengaged (red arrow point to left) and the plan went spiraling and spinning out of control. I managed to get to level flight, but, every time I would try and reengage the AP the aircraft would again spin and spiral out of control, I finally just quit the flight.
Flight plan was manually entered in FMC: ENCN LANTI2A LANTI M604 DANKO P15 VAXIT DCT CUTEL DCT SAB UM89 TRN TRN2R EGPK
Joe