Narrative:

We were rerouted; running late; had a maintenance delay; [and a] weight and balance system delay. We got our cpdlc. Tower was closed. [Procedure] page [said] contact norcal for clearance. [Jeppesen] 10-9 says nothing. We took off VFR; called norcal. Norcal said we should've called them for takeoff clearance. It was VFR. [Procedure] was unclear.

Google
 

Original NASA ASRS Text

Title: B737-700 flight crew reported receiving a PDC clearance on the ground; then taking off without calling the departure facility for their release.

Narrative: We were rerouted; running late; had a Maintenance delay; [and a] weight and balance system delay. We got our CPDLC. Tower was closed. [Procedure] page [said] contact NorCal for clearance. [Jeppesen] 10-9 says nothing. We took off VFR; called NorCal. Norcal said we should've called them for takeoff clearance. It was VFR. [Procedure] was unclear.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.