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B767 flight crew reported they exceeded atlantic track offset limits in an attempt to avoid wake turbulence.
| Attributes | |
| ACN | 1438758 |
| Time | |
| Date | 201704 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | CZQX.ARTCC |
| State Reference | NF |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | Oceanic |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | Cruise |
| Route In Use | Oceanic |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Type 666 |
| Person 2 | |
| Function | Relief Pilot Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 3380 Flight Crew Type 801 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Wake Vortex Encounter |
Narrative:
Whilst on atlantic track Y offset 1 NM right; we deviated an additional 1R for wake turbulence. At that point we discovered we were still in the wake and deviated an additional 1R. Shortly after we received via cpdlc; 'standard slop (strategic lateral offset procedure) is 1-2 miles not 3.' we corrected back to the left 1 mile and requested a deviation of 3 miles from the track. The request was granted and reported when no longer deviating. No further comments from cpdlc. Captain was briefed immediately upon his return from break.
Original NASA ASRS Text
Title: B767 flight crew reported they exceeded Atlantic track offset limits in an attempt to avoid wake turbulence.
Narrative: Whilst on Atlantic Track Y offset 1 NM right; we deviated an additional 1R for wake turbulence. At that point we discovered we were still in the wake and deviated an additional 1R. Shortly after we received via CPDLC; 'standard SLOP (Strategic Lateral Offset Procedure) is 1-2 miles not 3.' We corrected back to the left 1 mile and requested a deviation of 3 miles from the track. The request was granted and reported when no longer deviating. No further comments from CPDLC. Captain was briefed immediately upon his return from break.
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.