Cpr small aircraft challenged for making takeoff from wvi without release.

Attributes
ACN	146389
Time
Date	199005
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : wvi
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : mry
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 60 flight time total : 9200 flight time type : 1000
ASRS Report	146389
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Events
Anomaly	non adherence : far
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

At watsonville I called mry approach while taxiing out for departure on runway 19 to receive prefiled IFR clearance to sck. Departure acknowledged and issued clearance. Clearance was read back and acknowledged. Clearance contained no departure restrictions, clearance void times, hold for release or release times. Switched to local CTAF, announced departure, and departed. Switch to departure approximately 800'. Departure was surprised and advised that while there was no conflict that we needed to have called for a release clearance. My interpretation of the aim is that at an uncontrolled remote field that if the clearance is issued with no restrictions that departure is approved with no further clearance needed. If in doubt verify.

Original NASA ASRS Text

Title: CPR SMA CHALLENGED FOR MAKING TKOF FROM WVI WITHOUT RELEASE.

Narrative: AT WATSONVILLE I CALLED MRY APCH WHILE TAXIING OUT FOR DEP ON RWY 19 TO RECEIVE PREFILED IFR CLRNC TO SCK. DEP ACKNOWLEDGED AND ISSUED CLRNC. CLRNC WAS READ BACK AND ACKNOWLEDGED. CLRNC CONTAINED NO DEP RESTRICTIONS, CLRNC VOID TIMES, HOLD FOR RELEASE OR RELEASE TIMES. SWITCHED TO LCL CTAF, ANNOUNCED DEP, AND DEPARTED. SWITCH TO DEP APPROX 800'. DEP WAS SURPRISED AND ADVISED THAT WHILE THERE WAS NO CONFLICT THAT WE NEEDED TO HAVE CALLED FOR A RELEASE CLRNC. MY INTERPRETATION OF THE AIM IS THAT AT AN UNCTLED REMOTE FIELD THAT IF THE CLRNC IS ISSUED WITH NO RESTRICTIONS THAT DEP IS APPROVED WITH NO FURTHER CLRNC NEEDED. IF IN DOUBT VERIFY.

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.