An aeronca 7AC ground looped after landing; coming to rest in a ditch with damage to the aircraft.

Attributes
ACN	755353
Time
Date	200709
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Aeronca Champion
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 2.5 flight time total : 1842.6 flight time type : 80
ASRS Report	755353
Person 2
Affiliation	other
Function	observation : passenger
Qualification	pilot : instrument pilot : atp
Experience	flight time last 90 days : 7 flight time total : 19900 flight time type : 100
ASRS Report	755713
Events
Anomaly	aircraft equipment problem : less severe excursion : runway other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Ambiguous

Narrative:

Immediately after touching down aircraft veered uncontrollably to the right and ground looped; coming to rest in a 4 ft deep drainage ditch located parallel to and approximately 30 ft from the paved runway surface. There were no personal injuries. Aircraft sustained damage to left and right landing gear; 1 propeller blade and underbody. Mechanic examined aircraft after retrieval and disassembly; and suspects one of the brakes malfunctioned. The location of the full-length drainage ditches so close to the runway on both the east and west sides creates the likelihood of similar incidents.

Original NASA ASRS Text

Title: AN AERONCA 7AC GROUND LOOPED AFTER LANDING; COMING TO REST IN A DITCH WITH DAMAGE TO THE AIRCRAFT.

Narrative: IMMEDIATELY AFTER TOUCHING DOWN ACFT VEERED UNCONTROLLABLY TO THE R AND GND LOOPED; COMING TO REST IN A 4 FT DEEP DRAINAGE DITCH LOCATED PARALLEL TO AND APPROX 30 FT FROM THE PAVED RWY SURFACE. THERE WERE NO PERSONAL INJURIES. ACFT SUSTAINED DAMAGE TO L AND R LNDG GEAR; 1 PROP BLADE AND UNDERBODY. MECH EXAMINED ACFT AFTER RETRIEVAL AND DISASSEMBLY; AND SUSPECTS ONE OF THE BRAKES MALFUNCTIONED. THE LOCATION OF THE FULL-LENGTH DRAINAGE DITCHES SO CLOSE TO THE RWY ON BOTH THE E AND W SIDES CREATES THE LIKELIHOOD OF SIMILAR INCIDENTS.

Data retrieved from NASA's ASRS site as of January 2009 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.