DA20 katana flight crew lands at NOTAM closed grass airport, and aircraft sinks into mud.

Attributes
ACN	575857
Time
Date	200303
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : evy.airport
State Reference	DE
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : frg.tower
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 120 flight time total : 720 flight time type : 60
ASRS Report	575857
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	non adherence : published procedure non adherence : far non adherence other other anomaly other
Independent Detector	atc equipment : conflict alert atc equipment other atc equipment : 2 aircraft equipment : tcas aircraft equipment other aircraft equipment : 1
Resolutory Action	none taken : detected after the fact
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

On mar/sun/03, I was giving a private pilot a chkout in a DA20-C1 katana. After flying around the practice area, I decided to have him practice a soft field landing at summit airport. The first bad decision I made was telling the student to perform the landing on a runway that was grass after a large snow melt. The second mistake was not checking NOTAMS at summit to see if the runway was even open. The runway was closed. Not aware of the fact, we landed the plane on the grass strip and got the plane stuck in the mud. The plane had to be pushed out by a group of people, lessons learned are -- check NOTAMS for airports of intended landing, and don't land on grass runways that could be wet and muddy. The problem was caused by ignorance on my part, as a flight instructor, to not adequately check NOTAMS and a lack of situational awareness for runway conditions. I now plan on checking NOTAMS for each flight and stressing the checking of NOTAMS to my students. An additional way this could have been avoided is for a broadcast of closed runways over the AWOS. After the plane was pulled out of the mud and an excellent soft field takeoff performed, the plane was returned safely back to ZZZ with no damage, just a little dirty.

Original NASA ASRS Text

Title: DA20 KATANA FLT CREW LANDS AT NOTAM CLOSED GRASS ARPT, AND ACFT SINKS INTO MUD.

Narrative: ON MAR/SUN/03, I WAS GIVING A PVT PLT A CHKOUT IN A DA20-C1 KATANA. AFTER FLYING AROUND THE PRACTICE AREA, I DECIDED TO HAVE HIM PRACTICE A SOFT FIELD LNDG AT SUMMIT ARPT. THE FIRST BAD DECISION I MADE WAS TELLING THE STUDENT TO PERFORM THE LNDG ON A RWY THAT WAS GRASS AFTER A LARGE SNOW MELT. THE SECOND MISTAKE WAS NOT CHKING NOTAMS AT SUMMIT TO SEE IF THE RWY WAS EVEN OPEN. THE RWY WAS CLOSED. NOT AWARE OF THE FACT, WE LANDED THE PLANE ON THE GRASS STRIP AND GOT THE PLANE STUCK IN THE MUD. THE PLANE HAD TO BE PUSHED OUT BY A GROUP OF PEOPLE, LESSONS LEARNED ARE -- CHK NOTAMS FOR ARPTS OF INTENDED LNDG, AND DON'T LAND ON GRASS RWYS THAT COULD BE WET AND MUDDY. THE PROB WAS CAUSED BY IGNORANCE ON MY PART, AS A FLT INSTRUCTOR, TO NOT ADEQUATELY CHK NOTAMS AND A LACK OF SITUATIONAL AWARENESS FOR RWY CONDITIONS. I NOW PLAN ON CHKING NOTAMS FOR EACH FLT AND STRESSING THE CHKING OF NOTAMS TO MY STUDENTS. AN ADDITIONAL WAY THIS COULD HAVE BEEN AVOIDED IS FOR A BROADCAST OF CLOSED RWYS OVER THE AWOS. AFTER THE PLANE WAS PULLED OUT OF THE MUD AND AN EXCELLENT SOFT FIELD TKOF PERFORMED, THE PLANE WAS RETURNED SAFELY BACK TO ZZZ WITH NO DAMAGE, JUST A LITTLE DIRTY.

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.