Instructor with commercial student lands gear up. Non response to alarm warning system.

Attributes
ACN	205963
Time
Date	199203
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : c56
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : atl
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 143 flight time total : 2056 flight time type : 53
ASRS Report	205963
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : instrument pilot : private
Events
Anomaly	conflict : ground critical non adherence : published procedure other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Landed gear up. Didn't acknowledge gear warning horn following extended horn sounding during training.

Original NASA ASRS Text

Title: INSTRUCTOR WITH COMMERCIAL STUDENT LANDS GEAR UP. NON RESPONSE TO ALARM WARNING SYS.

Narrative: LANDED GEAR UP. DIDN'T ACKNOWLEDGE GEAR WARNING HORN FOLLOWING EXTENDED HORN SOUNDING DURING TRAINING.

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.