<< >> NASA ASRS Report 490156, October 2000

Local tower controller operational error when he released a C182 for takeoff when a beech 76 had been cleared to cross the same runway during taxi in.

Attributes
ACN	490156
Time
Date	200010
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : myf.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	ground : takeoff roll
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tower : myf.tower
Operator	general aviation : instructional
Make Model Name	Duchess 76
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller limited radar : 2 controller military : 6 controller radar : 2 controller time certified in position1 : 2
ASRS Report	490156
Person 2
Affiliation	other
Function	instruction : instructor oversight : pic
Qualification	pilot : cfi
Events
Anomaly	conflict : ground critical non adherence : required legal separation other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : rejected takeoff
Miss Distance	horizontal : 2000
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

On the date of the occurrence, I cleared a cessna for takeoff from the run-up of runway 28L, at the same time a duchess was touching down on runway 28R. As the duchess rolled out, I scanned runway 28L and observed the cessna that was previously cleared for takeoff was not on the runway, so I cleared the duchess to cross runway 28L at taxiway G without delay. The duchess complied. However, as the duchess entered runway 28L at taxiway G, the cessna in the run-up of runway 28L pwred up and entered runway 28L. The pilot of the cessna observed the duchess crossing the runway and aborted his takeoff. I attempted to stop the duchess from crossing but due to his rate of speed he was unable to comply. Contributing factor: the cessna cleared on runway 28L delayed almost a full min prior to starting takeoff roll. Corrective action: crossing clrncs will no longer be issued with open departure instructions.

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Original NASA ASRS Text

Title: LCL TWR CTLR OPERROR WHEN HE RELEASED A C182 FOR TKOF WHEN A BEECH 76 HAD BEEN CLRED TO CROSS THE SAME RWY DURING TAXI IN.

Narrative: ON THE DATE OF THE OCCURRENCE, I CLRED A CESSNA FOR TKOF FROM THE RUN-UP OF RWY 28L, AT THE SAME TIME A DUCHESS WAS TOUCHING DOWN ON RWY 28R. AS THE DUCHESS ROLLED OUT, I SCANNED RWY 28L AND OBSERVED THE CESSNA THAT WAS PREVIOUSLY CLRED FOR TKOF WAS NOT ON THE RWY, SO I CLRED THE DUCHESS TO CROSS RWY 28L AT TXWY G WITHOUT DELAY. THE DUCHESS COMPLIED. HOWEVER, AS THE DUCHESS ENTERED RWY 28L AT TXWY G, THE CESSNA IN THE RUN-UP OF RWY 28L PWRED UP AND ENTERED RWY 28L. THE PLT OF THE CESSNA OBSERVED THE DUCHESS XING THE RWY AND ABORTED HIS TKOF. I ATTEMPTED TO STOP THE DUCHESS FROM XING BUT DUE TO HIS RATE OF SPD HE WAS UNABLE TO COMPLY. CONTRIBUTING FACTOR: THE CESSNA CLRED ON RWY 28L DELAYED ALMOST A FULL MIN PRIOR TO STARTING TKOF ROLL. CORRECTIVE ACTION: XING CLRNCS WILL NO LONGER BE ISSUED WITH OPEN DEP INSTRUCTIONS.

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.