Instructor with spi on pattern entry has near midair collision with second aircraft making an improp...

Attributes
ACN	403662
Time
Date	199805
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : gai
State Reference	MD
Altitude	agl bound lower : 800 agl bound upper : 800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 30 flight time total : 3500 flight time type : 50
ASRS Report	403662
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : student
Events
Anomaly	conflict : nmac non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 300 vertical : 150
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While on downwind at 800 ft AGL, pilot being checked observed an aircraft over the landing numbers (runway 14), crossing from our left to right. Pilot questioned the crossing aircraft as to what they were doing. The crossing aircraft then started a climb to evade us and landed behind us. Comment: there seems to be a new pattern entry technique of crossing at midfield, pattern altitude, and then turning downwind. Some folks seem to like to cut corners and this aircraft treated midfield as over the numbers. At least a crosswind entry gives a greater margin for those so inclined to cut corners. No pattern entry is without certain concerns but I don't believe after 40 yrs of flying that this is a good one.

Original NASA ASRS Text

Title: INSTRUCTOR WITH SPI ON PATTERN ENTRY HAS NMAC WITH SECOND ACFT MAKING AN IMPROPER PATTERN ENTRY.

Narrative: WHILE ON DOWNWIND AT 800 FT AGL, PLT BEING CHKED OBSERVED AN ACFT OVER THE LNDG NUMBERS (RWY 14), XING FROM OUR L TO R. PLT QUESTIONED THE XING ACFT AS TO WHAT THEY WERE DOING. THE XING ACFT THEN STARTED A CLB TO EVADE US AND LANDED BEHIND US. COMMENT: THERE SEEMS TO BE A NEW PATTERN ENTRY TECHNIQUE OF XING AT MIDFIELD, PATTERN ALT, AND THEN TURNING DOWNWIND. SOME FOLKS SEEM TO LIKE TO CUT CORNERS AND THIS ACFT TREATED MIDFIELD AS OVER THE NUMBERS. AT LEAST A XWIND ENTRY GIVES A GREATER MARGIN FOR THOSE SO INCLINED TO CUT CORNERS. NO PATTERN ENTRY IS WITHOUT CERTAIN CONCERNS BUT I DON'T BELIEVE AFTER 40 YRS OF FLYING THAT THIS IS A GOOD ONE.

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.

Instructor with spi on pattern entry has near midair collision with second aircraft making an improper pattern entry.