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A B737 flight crew deviated from the clearance route when they misinterpreted their pre departure clearance.
| Attributes | |
| ACN | 824681 |
| Time | |
| Date | 200902 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | BUF.Airport |
| State Reference | NY |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | Airway J220.Airway |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Experience | Flight Crew Total 167 Flight Crew Type 13000 |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Experience | Flight Crew Last 90 Days 199 Flight Crew Type 1500 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
Pre departure clearance clearance confusion ZZZ-buf: pre departure clearance clearance ZZZ (SID) xxxxx J220 vallo. Filed route on pre departure clearance and releaser kzzz ZZZ (SID) xxxxx J220 buf. I interpreted after vallo cleared direct to buffalo. After we passed vallo ZNY queried our clearance; as they were expecting us to continue on J220 after vallo. ZNY cleared us direct buf and noted this has been a problem and also said there was no problem or conflict. I have reviewed company manual with this exact route and change as an example of what is expected. I did not ask for a full route clearance on the ground at ZZZ; as I assumed incorrectly; after vallo we were cleared direct buf. This obviously is still a problem with the logic of pre departure clearance clearance changes. It reinforces to request clearance delivery for full route clearances when I see any pre departure clearance route changes similar to this in the future. I think pre departure clearance changes should have a common end fix to pick up the original clearance. In my case; if the pre departure clearance change would have been ZZZ (SID) xxxxx J220 vallo J220; it would have provided a common end point to the original clearance J220 buf.
Original NASA ASRS Text
Title: A B737 flight crew deviated from the clearance route when they misinterpreted their PDC.
Narrative: PDC clearance confusion ZZZ-BUF: PDC clearance ZZZ (SID) XXXXX J220 VALLO. Filed route on PDC and releaser KZZZ ZZZ (SID) XXXXX J220 BUF. I interpreted after VALLO cleared direct to Buffalo. After we passed VALLO ZNY queried our clearance; as they were expecting us to continue on J220 after VALLO. ZNY cleared us direct BUF and noted this has been a problem and also said there was no problem or conflict. I have reviewed company manual with this exact route and change as an example of what is expected. I did not ask for a full route clearance on the ground at ZZZ; as I assumed incorrectly; after VALLO we were cleared direct BUF. This obviously is still a problem with the logic of PDC clearance changes. It reinforces to request Clearance Delivery for full route clearances when I see any PDC route changes similar to this in the future. I think PDC changes should have a common end fix to pick up the original clearance. In my case; if the PDC change would have been ZZZ (SID) XXXXX J220 VALLO J220; it would have provided a common end point to the original clearance J220 BUF.
Data retrieved from NASA's ASRS site as of April 2012 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.