Potential ground conflict between landing commuter aircraft and snowplow. Pilot deviation.

Attributes
ACN	167184
Time
Date	199101
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tvc
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 900
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp tower : tvc
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	descent : approach descent other landing other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Qualification	controller : non radar
Experience	controller non radar : 9
ASRS Report	167184
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance
Independent Detector	other other : unspecified atc
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation Inter Facility Coordination Failure
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Commuter X called on frequency 124.2, initial contact on 2 1/2 mi final ILS approach runway 28. Traverse city airport crew had a plow on runway 28 plowing. Plow was on ground frequency (121.8) by local procedure. Commuter X stated they were switched over at OM. Plow cleared runway 28 west/O incident. Neither the local controller nor controller in charge logged incident in daily log (7230). This is a fairly common occurrence at tvc, and less than 40% of like incidents get logged or documented. Many controllers, as well as supervisors attitudes are, 'if no one gets hurt, there is no problem--why get someone else in trouble?'

Original NASA ASRS Text

Title: POTENTIAL GND CONFLICT BETWEEN LNDG COMMUTER ACFT AND SNOWPLOW. PLT DEVIATION.

Narrative: COMMUTER X CALLED ON FREQ 124.2, INITIAL CONTACT ON 2 1/2 MI FINAL ILS APCH RWY 28. TRAVERSE CITY ARPT CREW HAD A PLOW ON RWY 28 PLOWING. PLOW WAS ON GND FREQ (121.8) BY LCL PROC. COMMUTER X STATED THEY WERE SWITCHED OVER AT OM. PLOW CLRED RWY 28 W/O INCIDENT. NEITHER THE LCL CTLR NOR CIC LOGGED INCIDENT IN DAILY LOG (7230). THIS IS A FAIRLY COMMON OCCURRENCE AT TVC, AND LESS THAN 40% OF LIKE INCIDENTS GET LOGGED OR DOCUMENTED. MANY CTLRS, AS WELL AS SUPVRS ATTITUDES ARE, 'IF NO ONE GETS HURT, THERE IS NO PROB--WHY GET SOMEONE ELSE IN TROUBLE?'

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.