Small aircraft X landed on occupied runway without clearance. Pilot deviation. Local controller clea...

Attributes
ACN	143386
Time
Date	199004
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : pia
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pia
Make Model Name	Small Aircraft
Flight Phase	climbout : takeoff landing other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	143386
Person 2
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
Events
Anomaly	conflict : ground less severe incursion : landing without clearance non adherence : required legal separation
Independent Detector	other other : unspecified
Resolutory Action	other
Consequence	faa : investigated faa : reviewed incident with flight crew
Miss Distance	unspecified : 3000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure Operational Error Pilot Deviation

Narrative:

I was working local control during a 2 runway operation 13/22. Small aircraft X doing touch and go's on runway 22, plus several departures and arrs on runway 13. Ground control had a veh requesting clearance on runway 4/22 to check surface. It was busy enough to have a need to control the pattern of the touch and go aircraft. The touch and go aircraft was cleared for takeoff and then shortly after asked to start his right crosswind (speed and altitude permitting). The ground controller then received clearance on runway 22 for the veh. Later the aircraft was asked to start his base. The next transmission to the aircraft was 'cleared for takeoff.' he never received a clearance to land. This was when the incursion/deviation occurred. It was brought to the FAA's attention from the maintenance manager (who was in the veh). He saw the aircraft coming down the runway as he sat sideways, he pulled off the runway. The pilot stated the next day that he never saw the veh on the runway as he landed. I did not realize this had happened until it was brought to our attention from the maintenance manager.

Original NASA ASRS Text

Title: SMA X LANDED ON OCCUPIED RWY WITHOUT CLRNC. PLT DEVIATION. LCL CTLR CLEARED SMA X FOR TKOF ON OCCUPIED RWY. SYSTEM ERROR.

Narrative: I WAS WORKING LCL CTL DURING A 2 RWY OPERATION 13/22. SMA X DOING TOUCH AND GO'S ON RWY 22, PLUS SEVERAL DEPS AND ARRS ON RWY 13. GND CTL HAD A VEH REQUESTING CLRNC ON RWY 4/22 TO CHK SURFACE. IT WAS BUSY ENOUGH TO HAVE A NEED TO CONTROL THE PATTERN OF THE TOUCH AND GO ACFT. THE TOUCH AND GO ACFT WAS CLRED FOR TKOF AND THEN SHORTLY AFTER ASKED TO START HIS RIGHT XWIND (SPD AND ALT PERMITTING). THE GND CTLR THEN RECEIVED CLRNC ON RWY 22 FOR THE VEH. LATER THE ACFT WAS ASKED TO START HIS BASE. THE NEXT XMISSION TO THE ACFT WAS 'CLRED FOR TKOF.' HE NEVER RECEIVED A CLRNC TO LAND. THIS WAS WHEN THE INCURSION/DEVIATION OCCURRED. IT WAS BROUGHT TO THE FAA'S ATTN FROM THE MAINT MGR (WHO WAS IN THE VEH). HE SAW THE ACFT COMING DOWN THE RWY AS HE SAT SIDEWAYS, HE PULLED OFF THE RWY. THE PLT STATED THE NEXT DAY THAT HE NEVER SAW THE VEH ON THE RWY AS HE LANDED. I DID NOT REALIZE THIS HAD HAPPENED UNTIL IT WAS BROUGHT TO OUR ATTN FROM THE MAINT MGR.

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.

Small aircraft X landed on occupied runway without clearance. Pilot deviation. Local controller cleared small aircraft X for takeoff on occupied runway. System error.