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Near midair collision between an EMS helicopter en route at 2000 ft MSL and a C172 in level flight crossing in front from left to right.
| Attributes | |
| ACN | 500863 |
| Time | |
| Date | 200102 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 2000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | SA 365 Dauphin 2 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : atp pilot : cfi pilot : commercial pilot : multi engine |
| Experience | flight time last 90 days : 90 flight time total : 7800 flight time type : 1200 |
| ASRS Report | 500863 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : airborne critical conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 10 vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
After dropping off patient and returning to home base in ZZZ, I noticed a C172 crossing in front of me from left to right at same altitude about 50 ft away. I banked aircraft heavily and watched my main rotor system pass over the tail of the other aircraft. I turned around and contacted other pilot on 122.8, got his tail number and phone number. Later, during telephone conversation, he said he never saw me, he only 'heard and felt vibration' off of my helicopter as it passed over him. If I had not taken evasive action, we would have collided. Today was our 'lucky' day.
Original NASA ASRS Text
Title: NMAC BTWN AN EMS HELI ENRTE AT 2000 FT MSL AND A C172 IN LEVEL FLT XING IN FRONT FROM L TO R.
Narrative: AFTER DROPPING OFF PATIENT AND RETURNING TO HOME BASE IN ZZZ, I NOTICED A C172 XING IN FRONT OF ME FROM L TO R AT SAME ALT ABOUT 50 FT AWAY. I BANKED ACFT HEAVILY AND WATCHED MY MAIN ROTOR SYS PASS OVER THE TAIL OF THE OTHER ACFT. I TURNED AROUND AND CONTACTED OTHER PLT ON 122.8, GOT HIS TAIL NUMBER AND PHONE NUMBER. LATER, DURING TELEPHONE CONVERSATION, HE SAID HE NEVER SAW ME, HE ONLY 'HEARD AND FELT VIBRATION' OFF OF MY HELI AS IT PASSED OVER HIM. IF I HAD NOT TAKEN EVASIVE ACTION, WE WOULD HAVE COLLIDED. TODAY WAS OUR 'LUCKY' DAY.
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.