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Light jet first officer reported of confusion and questioning by toronto ATC about their heading. Pilot programmed exall rather than extol which led to a heading deviation.
| Attributes | |
| ACN | 1355430 |
| Time | |
| Date | 201605 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | CYYZ.Airport |
| State Reference | ON |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Light Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Track / Heading All Types |
Narrative:
During getting clearance we were given a waypoint; extol; which sounds very familiar to a close by waypoint exall. Waypoint was not originally on flight plan; and after finding what I thought was the correct waypoint I read [back] my clearance with exall. Both points sound familiar; I don't believe anyone noticed. During cruise we started making a turn to exall; when ATC inquired what fix we were going to. We verified the spelling and were informed to proceed to extol.flight path was corrected very quickly after initial diversion; and no further flight interruptions happened. Reading back exact spellings of every fix. Extol and exall are in proximity and sound familiar. Although exall wasn't as good of a route as extol; it wasn't unusual enough to raise suspicion.
Original NASA ASRS Text
Title: Light Jet First Officer reported of confusion and questioning by Toronto ATC about their heading. Pilot programmed EXALL rather than EXTOL which led to a heading deviation.
Narrative: During getting clearance we were given a waypoint; EXTOL; which sounds very familiar to a close by waypoint EXALL. Waypoint was not originally on flight plan; and after finding what I thought was the correct waypoint I read [back] my clearance with EXALL. Both points sound familiar; I don't believe anyone noticed. During cruise we started making a turn to EXALL; when ATC inquired what fix we were going to. We verified the spelling and were informed to proceed to EXTOL.Flight path was corrected very quickly after initial diversion; and no further flight interruptions happened. Reading back exact spellings of every fix. EXTOL AND EXALL are in proximity and sound familiar. Although EXALL wasn't as good of a route as EXTOL; it wasn't unusual enough to raise suspicion.
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.