AP+ fuel consumption issue

[Arsh_Ahuja]

Hello IF Team,

Since few days i am facing an issue of fuel consumption in ap+, the fuel burning is more than normal on long haul flights.
Firstly with the A330-200, i took 3hrs extra fuel for a 12hour route and was left with 1% fuel when i resumed for landing and same thing happened when i took 5hrs 30mins extra for the same route still i got left with 1% only even when my N1 was less than 90% in both the cases.

Second, with B77W, yesterday night i took off for a 15 hour flight and took 2 hrs 30mins extra fuel which i generally take for this aircraft but again i am left with very less fuel even when i went to ap+ at N1 86% and was having tailwinds.

If you could resolve this issue i would be really grateful for this as we love to fly long hauls but if there would be issues like this then we might loose interest.

Thankyou

Device: Iphone 15
Operating system: 26.6.1

[Samyak]

Currently flying from YYZ to DEL. FT was 15:20, lifted 18:30 hrs fuel anticipating heavy traffic at DEL on arrival. After 14 hrs, I only have 2:15 hours’ fuel left.

[yaqin_wen]

Using AP+ fuel consumption higher than when not using it….. And also I always out of fuel when I use AP+

[yaqin_wen]

Can IF tell me why is the fuel consumption higher when using AP+ system than when not using it . ? Finally out of the fuel….Please