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An air carrier flight crew who were unfamiliar with ramp pushback procedures at sfo; pushed back without clearance from ground control. The first officer had asked ramp control if clearance was needed for pushback and was told 'no'. They confused what the ramp controller had said and pushed back without calling ground for clearance.
| Attributes | |
| ACN | 1291105 |
| Time | |
| Date | 201508 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | SFO.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Experience | Flight Crew Last 90 Days 21 Flight Crew Type 16000 |
| Person 2 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 160 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Ground Incursion Taxiway |
Narrative:
Prior to push; I briefed first officer (first officer) 'we will push from the gate take taxiway [a] to runway 1L (anticipated runway for departure)'. I briefed navigation setup and VHF setup. However; did not brief specific pushback procedures from gate. I heard first officer call ATC and say 'do we need [a] push clearance from this gate?' they said no. (I queried this because I only heard one side of communication; because I was not wearing headset.) I was kind of shocked because then I looked at 10-7; it says push call yes. So I said ok; no push call. As we pushed back without a clearance; push crew said; 'are we clear on to taxiway?' I said let me ask. First officer asked ground; ground said; 'you are pushing without a clearance! Don't do that; you need to call me first.' no traffic was around we did not block anyone; however; we had no push clearance. Both first officer and I had not been to sfo in long time. This was definitely a contributing factor.
Original NASA ASRS Text
Title: An air carrier flight crew who were unfamiliar with ramp pushback procedures at SFO; pushed back without clearance from Ground Control. The First Officer had asked ramp control if clearance was needed for pushback and was told 'no'. They confused what the Ramp Controller had said and pushed back without calling ground for clearance.
Narrative: Prior to push; I briefed First Officer (FO) 'we will push from the gate take taxiway [A] to Runway 1L (anticipated runway for departure)'. I briefed NAV setup and VHF setup. However; did not brief specific pushback procedures from Gate. I heard FO call ATC and say 'do we need [a] push clearance from this gate?' They said no. (I queried this because I only heard one side of communication; because I was not wearing headset.) I was kind of shocked because then I looked at 10-7; it says push call YES. So I said ok; no push call. As we pushed back WITHOUT a clearance; Push Crew said; 'are we clear on to taxiway?' I said let me ask. FO asked Ground; Ground said; 'You are pushing without a clearance! Don't do that; you need to call me first.' No traffic was around we did not block anyone; however; we had no push clearance. Both FO and I had not been to SFO in long time. This was definitely a contributing factor.
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.