Comanche pilot alleged to have crossed ADIZ on VFR flight.

Attributes
ACN	321703
Time
Date	199511
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pie
State Reference	FL
Altitude	msl bound lower : 1500 msl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : pam
Operator	general aviation : personal
Make Model Name	PA-24 Comanche
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 7000 flight time type : 7
ASRS Report	321703
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	other anomaly other other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

A flew a comanche 400 from dallas, tx, to miami, fl, with a fuel stop in pensacola, fl. I was not on a flight plan, flying VFR, VMC, and with an inoperative transponder. I did not know about the transponder until just before leaving, or that there was a problem also with the LORAN that I did not discover until in-flight. I took off from pensacola and flew east along the coast at 1500 ft MSL. I contacted applicable approach controls en route: pensacola, hurlbert, tyndall AFB. I requested to know the 'hot' whiskey areas, and was advised by tyndall that W151 was the only one that was hot. When I was well east of W151, I turned slightly to the southeast. At this time I was using ground references. I now also started to use LORAN for headings but believe that this is where the erroneous information began. As I turned to the southeast, I had visual contact with the lights from west florida and used LORAN to navigation to st petersburg. I also had to climb to maintain ground contact, I climbed to 7500 ft MSL. I then proceeded just west of the florida coast to north of sarasota and proceeded east with eventual landing at tamiami airport. Upon landing and going to the FBO, I received a call from oak grove (gci at tyndall AFB) they said that they tracked a target, to within 5 mins of my landing, to the vicinity of tamiami, that had gone inside the ADIZ off the florida coast, and wanted to know my name, tail number, etc. My LORAN had been giving erroneous information, and was off by about 50 mi by the time that I had landed. However, I believe that I was navigating visually close enough to the coast to avoid the ADIZ. Also, I had been in contact with tyndall approach, which is where oak grove is located, so I would think that I would not be technically an unknown if I did cross the ADIZ. I was also monitoring 121.0 and did not hear an 'unk rider' call, which I have heard broadcast before by gci to other unk traffic.

Original NASA ASRS Text

Title: COMANCHE PLT ALLEGED TO HAVE CROSSED ADIZ ON VFR FLT.

Narrative: A FLEW A COMANCHE 400 FROM DALLAS, TX, TO MIAMI, FL, WITH A FUEL STOP IN PENSACOLA, FL. I WAS NOT ON A FLT PLAN, FLYING VFR, VMC, AND WITH AN INOP XPONDER. I DID NOT KNOW ABOUT THE XPONDER UNTIL JUST BEFORE LEAVING, OR THAT THERE WAS A PROB ALSO WITH THE LORAN THAT I DID NOT DISCOVER UNTIL INFLT. I TOOK OFF FROM PENSACOLA AND FLEW E ALONG THE COAST AT 1500 FT MSL. I CONTACTED APPLICABLE APCH CTLS ENRTE: PENSACOLA, HURLBERT, TYNDALL AFB. I REQUESTED TO KNOW THE 'HOT' WHISKEY AREAS, AND WAS ADVISED BY TYNDALL THAT W151 WAS THE ONLY ONE THAT WAS HOT. WHEN I WAS WELL E OF W151, I TURNED SLIGHTLY TO THE SE. AT THIS TIME I WAS USING GND REFS. I NOW ALSO STARTED TO USE LORAN FOR HDGS BUT BELIEVE THAT THIS IS WHERE THE ERRONEOUS INFO BEGAN. AS I TURNED TO THE SE, I HAD VISUAL CONTACT WITH THE LIGHTS FROM WEST FLORIDA AND USED LORAN TO NAV TO ST PETERSBURG. I ALSO HAD TO CLB TO MAINTAIN GND CONTACT, I CLBED TO 7500 FT MSL. I THEN PROCEEDED JUST W OF THE FLORIDA COAST TO N OF SARASOTA AND PROCEEDED E WITH EVENTUAL LNDG AT TAMIAMI ARPT. UPON LNDG AND GOING TO THE FBO, I RECEIVED A CALL FROM OAK GROVE (GCI AT TYNDALL AFB) THEY SAID THAT THEY TRACKED A TARGET, TO WITHIN 5 MINS OF MY LNDG, TO THE VICINITY OF TAMIAMI, THAT HAD GONE INSIDE THE ADIZ OFF THE FLORIDA COAST, AND WANTED TO KNOW MY NAME, TAIL NUMBER, ETC. MY LORAN HAD BEEN GIVING ERRONEOUS INFO, AND WAS OFF BY ABOUT 50 MI BY THE TIME THAT I HAD LANDED. HOWEVER, I BELIEVE THAT I WAS NAVING VISUALLY CLOSE ENOUGH TO THE COAST TO AVOID THE ADIZ. ALSO, I HAD BEEN IN CONTACT WITH TYNDALL APCH, WHICH IS WHERE OAK GROVE IS LOCATED, SO I WOULD THINK THAT I WOULD NOT BE TECHNICALLY AN UNKNOWN IF I DID CROSS THE ADIZ. I WAS ALSO MONITORING 121.0 AND DID NOT HEAR AN 'UNK RIDER' CALL, WHICH I HAVE HEARD BROADCAST BEFORE BY GCI TO OTHER UNK TFC.

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.