<< >> NASA ASRS Report 162094, November 1990

Air carrier X flew wrong radar vector heading after takeoff. Pilot deviation. Controller failed to correct incorrect clearance readback. Operational deviation.

Attributes
ACN	162094
Time
Date	199011
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : las
State Reference	NV
Altitude	msl bound lower : 7000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : las tower : sbn
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 6000 flight time type : 200
ASRS Report	162094
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 7800 flight time type : 150
ASRS Report	162096
Events
Anomaly	non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated faa : reviewed incident with flight crew
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation Pilot Deviation

Narrative:

Air carrier X departed las from runway 01. Passing approximately 7000' departure control asked if a turn had been commenced. The PNF indicated that the turn to 300 degrees had been completed. Departure instructed an immediate turn to 200 degrees, then further to 180 degrees. The departure controller indicated that the heading should have been to 200 degrees versus 300 degrees. The flight was subsequently turned to a 270 degree heading to intercept the arwy to bty. There was no indication of traffic alert/conflict or requirement to reroute air traffic. Subsequent discussions were conducted by phone with the las tower radar supervisor. He indicated that he had listened to the tapes and discovered that the clearance readback by the flight crew had in fact included a 300 degree heading versus the correct 200 degree heading. The crew was given a 'readback correct' by the clearance delivery controller. The supervisor indicated he had acted to correct what was an understandable error and anticipated no further action.

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Original NASA ASRS Text

Title: ACR X FLEW WRONG RADAR VECTOR HEADING AFTER TKOF. PLT DEVIATION. CTLR FAILED TO CORRECT INCORRECT CLRNC READBACK. OPERATIONAL DEVIATION.

Narrative: ACR X DEPARTED LAS FROM RWY 01. PASSING APPROX 7000' DEP CTL ASKED IF A TURN HAD BEEN COMMENCED. THE PNF INDICATED THAT THE TURN TO 300 DEGS HAD BEEN COMPLETED. DEP INSTRUCTED AN IMMEDIATE TURN TO 200 DEGS, THEN FURTHER TO 180 DEGS. THE DEP CTLR INDICATED THAT THE HDG SHOULD HAVE BEEN TO 200 DEGS VERSUS 300 DEGS. THE FLT WAS SUBSEQUENTLY TURNED TO A 270 DEG HDG TO INTERCEPT THE ARWY TO BTY. THERE WAS NO INDICATION OF TFC ALERT/CONFLICT OR REQUIREMENT TO REROUTE AIR TFC. SUBSEQUENT DISCUSSIONS WERE CONDUCTED BY PHONE WITH THE LAS TWR RADAR SUPVR. HE INDICATED THAT HE HAD LISTENED TO THE TAPES AND DISCOVERED THAT THE CLRNC READBACK BY THE FLT CREW HAD IN FACT INCLUDED A 300 DEG HDG VERSUS THE CORRECT 200 DEG HDG. THE CREW WAS GIVEN A 'READBACK CORRECT' BY THE CLRNC DELIVERY CTLR. THE SUPVR INDICATED HE HAD ACTED TO CORRECT WHAT WAS AN UNDERSTANDABLE ERROR AND ANTICIPATED NO FURTHER ACTION.

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.