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Flight crew of medium large transport in cruise misunderstood clearance 20 degrees right. Turned left and controller intervened to separate traffic.
| Attributes | |
| ACN | 178568 |
| Time | |
| Date | 199105 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : phx |
| State Reference | AZ |
| Altitude | msl bound lower : 31000 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 8000 |
| ASRS Report | 178568 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Captain flying. ZLA gave us a 20 degree turn to the right and a climb to FL350. Captain misunderstood the turn as 20 degrees to the left. Center had to turn another aircraft to avoid a conflict. First officer did not catch the error until about the same time center did and gave a 40 degree turn to the right.
Original NASA ASRS Text
Title: FLT CREW OF MLG IN CRUISE MISUNDERSTOOD CLRNC 20 DEGREES RIGHT. TURNED LEFT AND CTLR INTERVENED TO SEPARATE TRAFFIC.
Narrative: CAPT FLYING. ZLA GAVE US A 20 DEG TURN TO THE RIGHT AND A CLB TO FL350. CAPT MISUNDERSTOOD THE TURN AS 20 DEGS TO THE LEFT. CENTER HAD TO TURN ANOTHER ACFT TO AVOID A CONFLICT. F/O DID NOT CATCH THE ERROR UNTIL ABOUT THE SAME TIME CENTER DID AND GAVE A 40 DEG TURN TO THE RIGHT.
Data retrieved from NASA's ASRS site as of July 2007 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.