Narrative:

I departed for a skydiving climb in class B airspace. I called approach twice and got ignored both times. I assumed the controller was busy and that he would see my permanent squawk code and reply since he asked if I would be back up and I told him that I would be back up in 10 minutes. We have a letter of agreement (LOA) with TRACON to operate in their class B as long as we stay on our designated squawk code; stay south east of the extended runway centerlines below 14;000 feet. It was my understanding that this LOA was authorized would act as our class B clearance in writing. I saw this LOA in person and felt that I was authorized to enter class B airspace so when the controller failed to respond to my two previous calls I did not keep calling him because I thought that he may have more pressing traffic to tend to and that he would see my discreet squawk code and know that I would be climbing to the west away from the airport as usual. This all happened during shift change. The male controller did notice me about a minute after my last call to him and he was then replaced by a lady controller that asked me to contact TRACON about a possible deviation. We are blessed to have the best controllers. I am not sure what was going on with this controller today but I will be more persistent in establishing contact from now on.

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Original NASA ASRS Text

Title: Skydiving pilot and TRACON Controller reported the skydiving aircraft entered Class B clearance without a clearance from ATC.

Narrative: I departed for a skydiving climb in Class B airspace. I called approach twice and got ignored both times. I assumed the controller was busy and that he would see my permanent squawk code and reply since he asked if I would be back up and I told him that I would be back up in 10 minutes. We have a Letter Of Agreement (LOA) with TRACON to operate in their Class B as long as we stay on our designated squawk code; stay south east of the extended runway centerlines below 14;000 feet. It was my understanding that this LOA was authorized would act as our Class B clearance in writing. I saw this LOA in person and felt that I was authorized to enter Class B airspace so when the controller failed to respond to my two previous calls I did not keep calling him because I thought that he may have more pressing traffic to tend to and that he would see my discreet squawk code and know that I would be climbing to the west away from the airport as usual. This all happened during shift change. The male controller did notice me about a minute after my last call to him and he was then replaced by a lady controller that asked me to contact TRACON about a possible deviation. We are blessed to have the best controllers. I am not sure what was going on with this controller today but I will be more persistent in establishing contact from now on.

Data retrieved from NASA's ASRS site 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.