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B737 flight crew reported they thought a clearance from the tower to depart was for them; but was actually a clearance for an aircraft entering from the other side. The error was not detected prior to crossing the hold line.
| Attributes | |
| ACN | 1447207 |
| Time | |
| Date | 201705 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | Taxi |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 151 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 230 Flight Crew Type 3000 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Ground Incursion Runway |
Narrative:
As we approached the end of runway; first officer told tower we were ready for takeoff. We both heard 'no delay; cleared for takeoff'. At the time we did not see any other aircraft at the end of the runway. As I started to take the runway I saw movement on the other side and stopped well short of the runway but not before crossing the hold line. We then queried ATC who informed us the clearance was for another aircraft. They subsequently cleared us for takeoff.first I broke my number 1 rule: if not 100 percent sure stop and verify! I will redouble my efforts to slow it down and be 100 percent sure of any and all clearances!
Original NASA ASRS Text
Title: B737 flight crew reported they thought a clearance from the Tower to depart was for them; but was actually a clearance for an aircraft entering from the other side. The error was not detected prior to crossing the hold line.
Narrative: As we approached the end of runway; FO told Tower we were ready for takeoff. We both heard 'no delay; cleared for takeoff'. At the time we did not see any other aircraft at the end of the runway. As I started to take the runway I saw movement on the other side and stopped well short of the runway but not before crossing the hold line. We then queried ATC who informed us the clearance was for another aircraft. They subsequently cleared us for takeoff.First I broke my number 1 rule: If not 100 percent sure stop and verify! I will redouble my efforts to slow it down and be 100 percent sure of any and all clearances!
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.