Small aircraft X landed on taxiway, then crossed active runway without clearance. Pilot deviation.

Attributes
ACN	136415
Time
Date	199002
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dvt
State Reference	AZ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mco
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	ground other : taxi landing other
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	136415
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	incursion : runway other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While I was working combined local controls (lcn and lcs) during a period of sustained heavy traffic. Small aircraft X landed on taxiway a, the parallel taxiway north of runway 25R. After landing, I instructed the pilot of small aircraft X to hold short of runway 25R since I had an aircraft ready for departure. The pilot proceeded to cross runway 25R after being instructed to hold short. I believe that the workload distribution in the cabin attendant contributed to the incident occurrence. No area supervisor was on duty, a controller in charge handled the watch. I was assigned to work both local controls, a ground controller was assigned with light traffic and a controller was assigned to flight data/clearance delivery with virtually no traffic. The controller in charge did not work a position, but worked a crossword puzzle. There needs to be more realistic planning and discipline while staffing the positions. For one local controller to work 123 operations in one hour invites distraction away from the runways while scanning for inbound traffic.

Original NASA ASRS Text

Title: SMA X LANDED ON TXWY, THEN CROSSED ACTIVE RWY WITHOUT CLRNC. PLT DEVIATION.

Narrative: WHILE I WAS WORKING COMBINED LCL CONTROLS (LCN AND LCS) DURING A PERIOD OF SUSTAINED HEAVY TFC. SMA X LANDED ON TXWY A, THE PARALLEL TXWY N OF RWY 25R. AFTER LNDG, I INSTRUCTED THE PLT OF SMA X TO HOLD SHORT OF RWY 25R SINCE I HAD AN ACFT READY FOR DEP. THE PLT PROCEEDED TO CROSS RWY 25R AFTER BEING INSTRUCTED TO HOLD SHORT. I BELIEVE THAT THE WORKLOAD DISTRIBUTION IN THE CAB CONTRIBUTED TO THE INCIDENT OCCURRENCE. NO AREA SUPVR WAS ON DUTY, A CTLR IN CHARGE HANDLED THE WATCH. I WAS ASSIGNED TO WORK BOTH LCL CTLS, A GND CTLR WAS ASSIGNED WITH LIGHT TFC AND A CTLR WAS ASSIGNED TO FLT DATA/CLRNC DELIVERY WITH VIRTUALLY NO TFC. THE CIC DID NOT WORK A POSITION, BUT WORKED A CROSSWORD PUZZLE. THERE NEEDS TO BE MORE REALISTIC PLANNING AND DISCIPLINE WHILE STAFFING THE POSITIONS. FOR ONE LCL CTLR TO WORK 123 OPERATIONS IN ONE HOUR INVITES DISTR AWAY FROM THE RWYS WHILE SCANNING FOR INBND TFC.

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.