Narrative:

I was on routine offshore patrol. I fly for a state government agency. The purpose for the flight is to look for possible sources of oil leaks. We fly offshore and look for vessels. Normally the targets are spotted on radar, then a visual inspection is made to determine the type of ship and to note any violations. Near cape mendocino, the coastal ADIZ comes to within 9.0 NM of the coast. I was thinking about locating the sources of blips on my radar and not how far off shore I was. Filing DVFR flight plans wasn't even in the back of my mind. When I got back to base, I got the word that the air force had scrambled on an unidented airplane in the cape mendocino area. They were wondering if it had been me, so am I. I estimate I was 10 NM offshore in that area, about the time they saw an aircraft flying low level over the water. In the future I will be more conscious of my distance offshore relative to the continental united states ADIZ. I will file the appropriate flight plan before crossing the line.

Google
 

Original NASA ASRS Text

Title: AN SMA PLT FLYING PATROL OFFSHORE FOR A STATE AGENCY MAY HAVE DEPARTED AND PENETRATED THE COASTAL ADIZ.

Narrative: I WAS ON ROUTINE OFFSHORE PATROL. I FLY FOR A STATE GOV AGENCY. THE PURPOSE FOR THE FLT IS TO LOOK FOR POSSIBLE SOURCES OF OIL LEAKS. WE FLY OFFSHORE AND LOOK FOR VESSELS. NORMALLY THE TARGETS ARE SPOTTED ON RADAR, THEN A VISUAL INSPECTION IS MADE TO DETERMINE THE TYPE OF SHIP AND TO NOTE ANY VIOLATIONS. NEAR CAPE MENDOCINO, THE COASTAL ADIZ COMES TO WITHIN 9.0 NM OF THE COAST. I WAS THINKING ABOUT LOCATING THE SOURCES OF BLIPS ON MY RADAR AND NOT HOW FAR OFF SHORE I WAS. FILING DVFR FLT PLANS WASN'T EVEN IN THE BACK OF MY MIND. WHEN I GOT BACK TO BASE, I GOT THE WORD THAT THE AIR FORCE HAD SCRAMBLED ON AN UNIDENTED AIRPLANE IN THE CAPE MENDOCINO AREA. THEY WERE WONDERING IF IT HAD BEEN ME, SO AM I. I ESTIMATE I WAS 10 NM OFFSHORE IN THAT AREA, ABOUT THE TIME THEY SAW AN ACFT FLYING LOW LEVEL OVER THE WATER. IN THE FUTURE I WILL BE MORE CONSCIOUS OF MY DISTANCE OFFSHORE RELATIVE TO THE CONTINENTAL UNITED STATES ADIZ. I WILL FILE THE APPROPRIATE FLT PLAN BEFORE XING THE LINE.

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.