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Pilot of an atx helicopter inadvertently entered a military alert training area using GPS type navigation resulting in an near midair collision between him and a military T38. Both aircraft took evasive action.
| Attributes | |
| ACN | 439877 |
| Time | |
| Date | 199906 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : rnd.airport |
| State Reference | TX |
| Altitude | agl single value : 1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : rnd.tower |
| Operator | common carrier : air taxi |
| Make Model Name | Helicopter |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other other |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| Aircraft 2 | |
| Controlling Facilities | tower : rnd.tower |
| Operator | other |
| Make Model Name | Talon |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 15 flight time total : 7000 flight time type : 5 |
| ASRS Report | 39877 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : captain instruction : instructor oversight : pic |
| Qualification | pilot : military |
| Events | |
| Anomaly | airspace violation : entry conflict : nmac non adherence : far |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : exited penetrated airspace flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 0 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Inbound to san antonio from houston, navigating via GPS and VFR sectional, I fixed my location as being approximately 5 mi east of new braunfels airport. I discovered that I was actually 5 NM east of randolph AFB and just within their MOA. I dialed in san antonio approach to monitor and turned right to pass as far north of the field as possible. When north of the airfield approximately 4 NM and while traveling about 290 degrees, I saw a T38 at my altitude and within 300 yards. I turned right and he did likewise to avoid me. Passed within 100 ft. This event occurred due to my incorrectly fixing my position over the ground.
Original NASA ASRS Text
Title: PLT OF AN ATX HELI INADVERTENTLY ENTERED A MIL ALERT TRAINING AREA USING GPS TYPE NAV RESULTING IN AN NMAC BTWN HIM AND A MIL T38. BOTH ACFT TOOK EVASIVE ACTION.
Narrative: INBOUND TO SAN ANTONIO FROM HOUSTON, NAVING VIA GPS AND VFR SECTIONAL, I FIXED MY LOCATION AS BEING APPROX 5 MI E OF NEW BRAUNFELS ARPT. I DISCOVERED THAT I WAS ACTUALLY 5 NM E OF RANDOLPH AFB AND JUST WITHIN THEIR MOA. I DIALED IN SAN ANTONIO APCH TO MONITOR AND TURNED R TO PASS AS FAR N OF THE FIELD AS POSSIBLE. WHEN N OF THE AIRFIELD APPROX 4 NM AND WHILE TRAVELING ABOUT 290 DEGS, I SAW A T38 AT MY ALT AND WITHIN 300 YARDS. I TURNED R AND HE DID LIKEWISE TO AVOID ME. PASSED WITHIN 100 FT. THIS EVENT OCCURRED DUE TO MY INCORRECTLY FIXING MY POS OVER THE GND.
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.