BE58 taxied for departure at bos without appropriate ground control clearance.

Attributes
ACN	581679
Time
Date	200305
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos.airport
State Reference	MA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Baron 58/58TC
Operating Under FAR Part	Part 91
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 25 flight time total : 1850 flight time type : 800
ASRS Report	581679
Person 2
Affiliation	government : faa
Function	controller : ground
Events
Anomaly	incursion : taxiway 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	Airport Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Clearance delivery instructed to stay on frequency and notify when ready to taxi. Upon notification, I was instructed to monitor ground. I interpreted the instruction to commence taxi to the active and monitor ground. If clearance delivery had stated, 'hold position, monitor ground,' I would not have assumed or anticipated the clearance to taxi. In addition, since clearance stated, 'report back when ready to taxi,' instead of contacting ground, I made the wrong assumption that the controller was monitoring both frequencys. This was a human error and was aggravated by my desire to do 'everything right' at a major airport. I got caught in the trap of anticipating the taxi instruction and caught off mental guard when told to monitor clearance instead of what I would normally do -- contact ground when ready to taxi.

Original NASA ASRS Text

Title: BE58 TAXIED FOR DEP AT BOS WITHOUT APPROPRIATE GND CTL CLRNC.

Narrative: CLRNC DELIVERY INSTRUCTED TO STAY ON FREQ AND NOTIFY WHEN READY TO TAXI. UPON NOTIFICATION, I WAS INSTRUCTED TO MONITOR GND. I INTERPRETED THE INSTRUCTION TO COMMENCE TAXI TO THE ACTIVE AND MONITOR GND. IF CLRNC DELIVERY HAD STATED, 'HOLD POS, MONITOR GND,' I WOULD NOT HAVE ASSUMED OR ANTICIPATED THE CLRNC TO TAXI. IN ADDITION, SINCE CLRNC STATED, 'RPT BACK WHEN READY TO TAXI,' INSTEAD OF CONTACTING GND, I MADE THE WRONG ASSUMPTION THAT THE CTLR WAS MONITORING BOTH FREQS. THIS WAS A HUMAN ERROR AND WAS AGGRAVATED BY MY DESIRE TO DO 'EVERYTHING RIGHT' AT A MAJOR ARPT. I GOT CAUGHT IN THE TRAP OF ANTICIPATING THE TAXI INSTRUCTION AND CAUGHT OFF MENTAL GUARD WHEN TOLD TO MONITOR CLRNC INSTEAD OF WHAT I WOULD NORMALLY DO -- CONTACT GND WHEN READY TO TAXI.

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.