A-320 One Pack U/S
I fly a 320 from the 1000 (MSN) series. The MMEL however, does not mention any altitude restriction in case of One Pack U/S operations.
On the other hand I have seen that there is an altitude restriction of 37,000 in case of Airbus 319 from the 3000 (MSN) series.
Is it possible that there is no altitude restriction in case of One Pack Operations for the 320 OR is there a typo mistake here.