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International flight crew reported that they departed sfo without ever actually receiving a pre departure clearance via cpdlc. Although the flight had logged on to sfo cpdlc the clearance was never received in the aircraft. The crew discovered the oversight when ATC questioned their transponder code.
| Attributes | |
| ACN | 1382570 |
| Time | |
| Date | 201608 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Widebody Transport |
| Flight Phase | Taxi |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 255 Flight Crew Total 11683.2 Flight Crew Type 8679.0 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 300 Flight Crew Total 13727 Flight Crew Type 10596 |
| Events | |
| Anomaly | ATC Issue All Types Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance |
Narrative:
During preflight at the gate we have a relatively new procedure for acquiring our ATC pre-departure clearance (pre departure clearance). This new procedure requires a logon by cpdlc to sfo to receive our pre departure clearance. Once logged on; the pre departure clearance is not requested but pushed to the aircraft. This can be sent immediately; take a few minutes up to 30; or never be sent. In our case it was never sent.the preflight [has] many requirements for the pilots in the cockpit. The relief pilots have other duties inside and outside the cockpit. During the preflight I was aware that we logged on by cpdlc to sfo but left the cockpit shortly after coordinating with maintenance and flight attendants.upon pushback and taxi out no pilot had realized that we did not receive our pre departure clearance. It was not until after we took off did norcal departure told us to reset our squawk that we realized we never received it. Shortly after; we were sent to oak center. We inquired what our clearance was and it was exactly as loaded/expected from preflight. However; we did not receive the pre departure clearance from cpdlc.
Original NASA ASRS Text
Title: International flight crew reported that they departed SFO without ever actually receiving a PDC via CPDLC. Although the flight had logged on to SFO CPDLC the clearance was never received in the aircraft. The crew discovered the oversight when ATC questioned their transponder code.
Narrative: During preflight at the gate we have a relatively new procedure for acquiring our ATC pre-departure clearance (PDC). This new procedure requires a logon by CPDLC to SFO to receive our PDC. Once logged on; the PDC is not requested but pushed to the aircraft. This can be sent immediately; take a few minutes up to 30; or never be sent. In our case it was never sent.The preflight [has] many requirements for the pilots in the cockpit. The Relief pilots have other duties inside and outside the cockpit. During the preflight I was aware that we logged on by CPDLC to SFO but left the cockpit shortly after coordinating with maintenance and flight attendants.Upon pushback and taxi out no pilot had realized that we did not receive our PDC. It was not until after we took off did NORCAL departure told us to reset our squawk that we realized we never received it. Shortly after; we were sent to OAK center. We inquired what our clearance was and it was exactly as loaded/expected from preflight. However; we did not receive the PDC from CPDLC.
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.