<< >> NASA ASRS Report 452330, October 1999

Cpr aircraft crew confuses assignment of after takeoff heading with a takeoff clearance causing tower to issue go around to landing aircraft.

Attributes
ACN	452330
Time
Date	199910
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : agc.airport
State Reference	PA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : agc.tower tracon : n90.tracon
Operator	general aviation : corporate
Make Model Name	Gulfstream II
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : agc.tower
Make Model Name	Hawker Horizon (Raytheon)
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	landing : go around
Person 1
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 70 flight time total : 12700 flight time type : 2700
ASRS Report	452330
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	controller : separated traffic
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I was taxiing to runway 28. I (sic) was in the left seat and the captain was in the right. Approaching the end of the runway, the controller gave us a heading after takeoff. I believe he said 'turn to heading 260 degrees after takeoff.' as I slowed the aircraft to a near stop, the captain said 'let's go, we've been cleared to take off.' I said 'you'd better confirm that, I didn't hear a clearance.' he called the tower and the tower confirmed that we were not cleared for takeoff. I stopped the aircraft short of the runway, but tower sent a hawker that was turning final around to be sure. If we hadn't confirmed the clearance, we would probably have entered the runway before seeing the hawker. I believe the captain thought that the issuance of the heading after takeoff was the actual clearance for takeoff. Perhaps the issuance of a heading after takeoff should be given with the takeoff clearance so as to avoid confusion.

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Original NASA ASRS Text

Title: CPR ACFT CREW CONFUSES ASSIGNMENT OF AFTER TKOF HDG WITH A TKOF CLRNC CAUSING TWR TO ISSUE GAR TO LNDG ACFT.

Narrative: I WAS TAXIING TO RWY 28. I (SIC) WAS IN THE L SEAT AND THE CAPT WAS IN THE R. APCHING THE END OF THE RWY, THE CTLR GAVE US A HDG AFTER TKOF. I BELIEVE HE SAID 'TURN TO HDG 260 DEGS AFTER TKOF.' AS I SLOWED THE ACFT TO A NEAR STOP, THE CAPT SAID 'LET'S GO, WE'VE BEEN CLRED TO TAKE OFF.' I SAID 'YOU'D BETTER CONFIRM THAT, I DIDN'T HEAR A CLRNC.' HE CALLED THE TWR AND THE TWR CONFIRMED THAT WE WERE NOT CLRED FOR TKOF. I STOPPED THE ACFT SHORT OF THE RWY, BUT TWR SENT A HAWKER THAT WAS TURNING FINAL AROUND TO BE SURE. IF WE HADN'T CONFIRMED THE CLRNC, WE WOULD PROBABLY HAVE ENTERED THE RWY BEFORE SEEING THE HAWKER. I BELIEVE THE CAPT THOUGHT THAT THE ISSUANCE OF THE HDG AFTER TKOF WAS THE ACTUAL CLRNC FOR TKOF. PERHAPS THE ISSUANCE OF A HDG AFTER TKOF SHOULD BE GIVEN WITH THE TKOF CLRNC SO AS TO AVOID CONFUSION.

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.