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A VFR pilot inadvertently descends from his cruise altitude and has an near midair collision with another aircraft below him.
| Attributes | |
| ACN | 332688 |
| Time | |
| Date | 199604 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mys |
| State Reference | KY |
| Altitude | msl bound lower : 4700 msl bound upper : 5500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : tvc |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other descent other |
| Flight Plan | None |
| Aircraft 2 | |
| Make Model Name | Champion Citabria |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 28 flight time total : 447 flight time type : 249 |
| ASRS Report | 332688 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Events | |
| Anomaly | conflict : nmac inflight encounter other non adherence : far other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 100 vertical : 75 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Took off from bmg at XA56Z after refueling stop and climbed to 5500 ft MSL. Air was moderately turbulent from wind and thermal activity and aircraft tended to rise and settle in waves. I saw the citabria to my left and below me. He appeared to be at the correct cruising altitude. He passed in front and below me so no evasive action was necessary. I climbed back to 5500 ft and attempted to maintain that level with greater diligence.
Original NASA ASRS Text
Title: A VFR PLT INADVERTENTLY DSNDS FROM HIS CRUISE ALT AND HAS AN NMAC WITH ANOTHER ACFT BELOW HIM.
Narrative: TOOK OFF FROM BMG AT XA56Z AFTER REFUELING STOP AND CLBED TO 5500 FT MSL. AIR WAS MODERATELY TURBULENT FROM WIND AND THERMAL ACTIVITY AND ACFT TENDED TO RISE AND SETTLE IN WAVES. I SAW THE CITABRIA TO MY L AND BELOW ME. HE APPEARED TO BE AT THE CORRECT CRUISING ALT. HE PASSED IN FRONT AND BELOW ME SO NO EVASIVE ACTION WAS NECESSARY. I CLBED BACK TO 5500 FT AND ATTEMPTED TO MAINTAIN THAT LEVEL WITH GREATER DILIGENCE.
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.