Air carrier medium large transport crosses hold line to active runway. Controller intervenes and stops them short of runway and issues go around to military aircraft on short final. Misinterp of clearance by flight crew on medium large transport X. Heard 'cleared into position and hold runway 18'.

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Attributes
ACN	125667
Time
Date	198910
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dca
State Reference	DC
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground : holding ground other : taxi
Flight Plan	IFR
Aircraft 2
Make Model Name	Medium Transport
Flight Phase	descent : approach landing : go around
Route In Use	arrival other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 150 flight time total : 3000 flight time type : 150
ASRS Report	125667
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe incursion : runway non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Operational Error Pilot Deviation

Narrative:

We were operating flight from dca to bos. We were holding short of runway 18 for departure when tower advised us to 'taxi into position and hold runway 18'. I repeated the clearance back to ATC. As we proceeded on to the runway (not quite on it), ATC advised us to 'hold short, landing traffic'. This was given to us after our clearance to position and hold, and after we had proceeded past the hold lines. The captain stopped the aircraft at that time. ATC then gave a coast guard jet a go-around and told us that he had called us 3 times to tell us to hold short. This is not true as neither the captain nor myself heard any prior calls, nor did a captain who was on our jumpseat hear any previous calls. As far as what can be done to prevent this situation, I don't know. I do know, however, that the controller should not lie about his clrncs in order to cover his rear-end.

Original NASA ASRS Text

Title: ACR MLG CROSSES HOLD LINE TO ACTIVE RWY. CTLR INTERVENES AND STOPS THEM SHORT OF RWY AND ISSUES GO AROUND TO MIL ACFT ON SHORT FINAL. MISINTERP OF CLRNC BY FLT CREW ON MLG X. HEARD 'CLEARED INTO POSITION AND HOLD RWY 18'.

Narrative: WE WERE OPERATING FLT FROM DCA TO BOS. WE WERE HOLDING SHORT OF RWY 18 FOR DEP WHEN TWR ADVISED US TO 'TAXI INTO POSITION AND HOLD RWY 18'. I REPEATED THE CLRNC BACK TO ATC. AS WE PROCEEDED ON TO THE RWY (NOT QUITE ON IT), ATC ADVISED US TO 'HOLD SHORT, LNDG TFC'. THIS WAS GIVEN TO US AFTER OUR CLRNC TO POSITION AND HOLD, AND AFTER WE HAD PROCEEDED PAST THE HOLD LINES. THE CAPT STOPPED THE ACFT AT THAT TIME. ATC THEN GAVE A COAST GUARD JET A GO-AROUND AND TOLD US THAT HE HAD CALLED US 3 TIMES TO TELL US TO HOLD SHORT. THIS IS NOT TRUE AS NEITHER THE CAPT NOR MYSELF HEARD ANY PRIOR CALLS, NOR DID A CAPT WHO WAS ON OUR JUMPSEAT HEAR ANY PREVIOUS CALLS. AS FAR AS WHAT CAN BE DONE TO PREVENT THIS SITUATION, I DON'T KNOW. I DO KNOW, HOWEVER, THAT THE CTLR SHOULD NOT LIE ABOUT HIS CLRNCS IN ORDER TO COVER HIS REAR-END.

Data retrieved from NASA's ASRS site as of August 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.