HS125 experienced confusion with IFR release off hwd during non tower operation(south).

Attributes
ACN	594116
Time
Date	200309
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : hwd.airport
State Reference	CA
Altitude	msl single value : 2000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : nct.tracon tower : oma.tower
Operator	general aviation : corporate
Make Model Name	HS 125 Series 700
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 110 flight time total : 20100 flight time type : 3200
ASRS Report	594116
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	airspace violation : entry non adherence : published procedure other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance ATC Facility Airspace Structure
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Intra Facility Coordination Failure

Narrative:

Departing on IFR clearance from hayward, ca, airport after tower had closed. My copilot obtained IFR clearance from oakland clearance. Very weak audio, but clearance read 'cleared to reno via V-6 sac, after takeoff turn left to 160 degree heading and climb to 2000 ft, expect FL210 in 10 mins, contact norcal departure on 124.5 and squawk xyzw.' clearance did not contain any clearance void time, hold for release or release time. We believed we had the authority/authorized at this time to depart and proceed with the clearance. The airfield was uncontrolled at this time, and the WX conditions were clear with visibility unlimited. After takeoff on runway 28L, turning left to 160 degree heading and climbing to 2000 ft, we contacted norcal departure. The controller acted surprised at our call. He stated he was not aware oakland tower had cleared us for takeoff and that he had no flight plan for us. Quickly, before we could reply, the controller said 'ok, so you're going to reno, turn left to 070 degrees and climb to 3000 ft.' continued vectors and routing were then supplied to reno. Since this confusion existed when we departed and called norcal departure, I felt we would be asked to telephone norcal departure en route or when we arrived at reno. No request was made. On sep/fri/03, I telephoned norcal approach and talked with the suvpr and described the situation and confusion. He stated that this approximately time at night is shift change at their location and some confusion is not unusual. He said that the clearance given to us was the normal routing out of hayward, and for us not to be concerned. Class B airspace over hayward is 3000 ft, and the direction we turned, it would eventually reduce to 2100 ft. No class B airspace was penetrated, and no close encounters happened. Upon later reflection, oakland clearance should have given us a clearance void time or hold for release instructions if they did not want us to depart at our own discretion, or we should have asked for specific takeoff clearance and instructions.

Original NASA ASRS Text

Title: HS125 EXPERIENCED CONFUSION WITH IFR RELEASE OFF HWD DURING NON TWR OP(S).

Narrative: DEPARTING ON IFR CLRNC FROM HAYWARD, CA, ARPT AFTER TWR HAD CLOSED. MY COPLT OBTAINED IFR CLRNC FROM OAKLAND CLRNC. VERY WEAK AUDIO, BUT CLRNC READ 'CLRED TO RENO VIA V-6 SAC, AFTER TKOF TURN L TO 160 DEG HDG AND CLB TO 2000 FT, EXPECT FL210 IN 10 MINS, CONTACT NORCAL DEP ON 124.5 AND SQUAWK XYZW.' CLRNC DID NOT CONTAIN ANY CLRNC VOID TIME, HOLD FOR RELEASE OR RELEASE TIME. WE BELIEVED WE HAD THE AUTH AT THIS TIME TO DEPART AND PROCEED WITH THE CLRNC. THE AIRFIELD WAS UNCTLED AT THIS TIME, AND THE WX CONDITIONS WERE CLR WITH VISIBILITY UNLIMITED. AFTER TKOF ON RWY 28L, TURNING L TO 160 DEG HDG AND CLBING TO 2000 FT, WE CONTACTED NORCAL DEP. THE CTLR ACTED SURPRISED AT OUR CALL. HE STATED HE WAS NOT AWARE OAKLAND TWR HAD CLRED US FOR TKOF AND THAT HE HAD NO FLT PLAN FOR US. QUICKLY, BEFORE WE COULD REPLY, THE CTLR SAID 'OK, SO YOU'RE GOING TO RENO, TURN L TO 070 DEGS AND CLB TO 3000 FT.' CONTINUED VECTORS AND ROUTING WERE THEN SUPPLIED TO RENO. SINCE THIS CONFUSION EXISTED WHEN WE DEPARTED AND CALLED NORCAL DEP, I FELT WE WOULD BE ASKED TO TELEPHONE NORCAL DEP ENRTE OR WHEN WE ARRIVED AT RENO. NO REQUEST WAS MADE. ON SEP/FRI/03, I TELEPHONED NORCAL APCH AND TALKED WITH THE SUVPR AND DESCRIBED THE SIT AND CONFUSION. HE STATED THAT THIS APPROX TIME AT NIGHT IS SHIFT CHANGE AT THEIR LOCATION AND SOME CONFUSION IS NOT UNUSUAL. HE SAID THAT THE CLRNC GIVEN TO US WAS THE NORMAL ROUTING OUT OF HAYWARD, AND FOR US NOT TO BE CONCERNED. CLASS B AIRSPACE OVER HAYWARD IS 3000 FT, AND THE DIRECTION WE TURNED, IT WOULD EVENTUALLY REDUCE TO 2100 FT. NO CLASS B AIRSPACE WAS PENETRATED, AND NO CLOSE ENCOUNTERS HAPPENED. UPON LATER REFLECTION, OAKLAND CLRNC SHOULD HAVE GIVEN US A CLRNC VOID TIME OR HOLD FOR RELEASE INSTRUCTIONS IF THEY DID NOT WANT US TO DEPART AT OUR OWN DISCRETION, OR WE SHOULD HAVE ASKED FOR SPECIFIC TKOF CLRNC AND INSTRUCTIONS.

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.