The flight crew of a twin jet cpr aircraft landed on a runway that was occupied by a snow plow.

Attributes
ACN	431398
Time
Date	199902
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atw.airport
State Reference	WI
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Weather Elements	Snow
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pdx.tower
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Navigation In Use	ils localizer only : 21
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 110 flight time total : 5600 flight time type : 510
ASRS Report	431398
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	ground encounters : vehicle non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew Other
Supplementary
Problem Areas	FAA ATC Human Performance Airport
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error
Situations
Airport	procedure or policy : atw.airport snow removal : atw.airport

Narrative:

We were cleared to land after executing a localizer back course to runway 21 at appleton, wi. Our landing clearance was issued 5 mi from the threshold of the runway. While on the landing rollout with brakes applied, both crew members noticed a snow plow truck at our 12 O'clock position facing our opposite direction on the active runway approximately 3000 ft from our aircraft. The snow plow immediately exited the runway to the right in order to avoid our rollout. We continued our braking and stopped approximately 1000 ft prior to the plow's location. A determination was made during a meeting between crew and airport management, that tower person on duty cleared the plow onto the active runway 21. However, then cleared us to land and never notified the plow driver to exit the runway. Since our landing clearance was issued to us 5 mi out, there was more than a sufficient amount of time to clear the plow off the runway. The contributing factor to this occurrence was the tower controller's lack of communication to ground equipment personnel.

Original NASA ASRS Text

Title: THE FLC OF A TWIN JET CPR ACFT LANDED ON A RWY THAT WAS OCCUPIED BY A SNOW PLOW.

Narrative: WE WERE CLRED TO LAND AFTER EXECUTING A LOC BACK COURSE TO RWY 21 AT APPLETON, WI. OUR LNDG CLRNC WAS ISSUED 5 MI FROM THE THRESHOLD OF THE RWY. WHILE ON THE LNDG ROLLOUT WITH BRAKES APPLIED, BOTH CREW MEMBERS NOTICED A SNOW PLOW TRUCK AT OUR 12 O'CLOCK POS FACING OUR OPPOSITE DIRECTION ON THE ACTIVE RWY APPROX 3000 FT FROM OUR ACFT. THE SNOW PLOW IMMEDIATELY EXITED THE RWY TO THE R IN ORDER TO AVOID OUR ROLLOUT. WE CONTINUED OUR BRAKING AND STOPPED APPROX 1000 FT PRIOR TO THE PLOW'S LOCATION. A DETERMINATION WAS MADE DURING A MEETING BTWN CREW AND ARPT MGMNT, THAT TWR PERSON ON DUTY CLRED THE PLOW ONTO THE ACTIVE RWY 21. HOWEVER, THEN CLRED US TO LAND AND NEVER NOTIFIED THE PLOW DRIVER TO EXIT THE RWY. SINCE OUR LNDG CLRNC WAS ISSUED TO US 5 MI OUT, THERE WAS MORE THAN A SUFFICIENT AMOUNT OF TIME TO CLR THE PLOW OFF THE RWY. THE CONTRIBUTING FACTOR TO THIS OCCURRENCE WAS THE TWR CTLR'S LACK OF COM TO GND EQUIP PERSONNEL.

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.