Cpr pilot continues to taxi with copilot out of the cockpit. Runway incursion was the result.

Attributes
ACN	458664
Time
Date	199912
Day	Mon
Local Time Of Day	0601 To 1200
Place
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Citation III, VI, VII
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 75 flight time total : 14000 flight time type : 3000
ASRS Report	458664
Events
Anomaly	incursion : runway non adherence : company policies non adherence : clearance non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Copilot left flight deck after receiving clearance, prior to taxi request, in order to clean headset microphone. Captain completed taxi checklist and requested taxi clearance alone in cockpit and began taxi. Copilot entered cockpit as aircraft was entering active runway. As we held in position on runway, the tower controller issued 'taxi into position and hold' clearance to us. The captain had misunderstood the taxi instructions to include 'taxi into position and hold' (those words were never used from ATC). The taxi instructions were: taxi to runway xx via runway yy make a left turn (on runway yy) you're #1. This event was caused by the captain operating alone (single pilot), ATC using poor phraseology, the captain misinterping the clearance and not looking for the correct 'key words' used in proper ATC/pilot radio phraseology. Greater emphasis needs to be placed in ATC and pilot training on correct radio phraseology.

Original NASA ASRS Text

Title: CPR PLT CONTINUES TO TAXI WITH COPLT OUT OF THE COCKPIT. RWY INCURSION WAS THE RESULT.

Narrative: COPLT LEFT FLT DECK AFTER RECEIVING CLRNC, PRIOR TO TAXI REQUEST, IN ORDER TO CLEAN HEADSET MIKE. CAPT COMPLETED TAXI CHKLIST AND REQUESTED TAXI CLRNC ALONE IN COCKPIT AND BEGAN TAXI. COPLT ENTERED COCKPIT AS ACFT WAS ENTERING ACTIVE RWY. AS WE HELD IN POS ON RWY, THE TWR CTLR ISSUED 'TAXI INTO POS AND HOLD' CLRNC TO US. THE CAPT HAD MISUNDERSTOOD THE TAXI INSTRUCTIONS TO INCLUDE 'TAXI INTO POS AND HOLD' (THOSE WORDS WERE NEVER USED FROM ATC). THE TAXI INSTRUCTIONS WERE: TAXI TO RWY XX VIA RWY YY MAKE A L TURN (ON RWY YY) YOU'RE #1. THIS EVENT WAS CAUSED BY THE CAPT OPERATING ALONE (SINGLE PLT), ATC USING POOR PHRASEOLOGY, THE CAPT MISINTERPING THE CLRNC AND NOT LOOKING FOR THE CORRECT 'KEY WORDS' USED IN PROPER ATC/PLT RADIO PHRASEOLOGY. GREATER EMPHASIS NEEDS TO BE PLACED IN ATC AND PLT TRAINING ON CORRECT RADIO PHRASEOLOGY.

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.