C210 became distraction and forgot to put the landing gear down.

Attributes
ACN	515919
Time
Date	200106
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : fnt.airport
State Reference	MI
Altitude	agl single value : 0
Aircraft 1
Controlling Facilities	tower : fnt.tower artcc : ztl.artcc
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Aircraft 2
Controlling Facilities	tower : fnt.tower
Operator	Other
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unk
Flight Phase	descent : approach
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : commercial pilot : cfi pilot : instrument
Experience	flight time last 90 days : 30 flight time total : 4500 flight time type : 500
ASRS Report	515919
Person 2
Affiliation	other
Function	flight crew : captain oversight : pic
Events
Anomaly	ground encounters : gear up landing other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While on the landing approach to fnt airport, runway 27, I was requested to report my indicated airspeed (100 KIAS). I did so, but was wary of the reasons for this, ie, was there an airplane gaining on me or was I gaining on another aircraft? I increased my outside scan but could see no other aircraft. Shortly thereafter, I was cleared to land following another aircraft on short final. I could not locate the other airplane. When I finally did locate the other aircraft it was nearing touchdown and I was on short final. I reported the aircraft in sight. At about this time the radar altimeter in my aircraft went off (an indicator light and sound). I normally do not use this but I did check it and tried to turn it off. After this, I was approaching the runway threshold and did my round-out and flare with eyes fixed well down the runway. Unfortunately, I neglected to extend the landing gear. I believe the cause of this incident was allowing myself to be distraction from my normal routine. Normally, I do several routine checks on the landing gear. These series of small distrs broke my normal routine leaving me vulnerable to this gear up landing.

Original NASA ASRS Text

Title: C210 BECAME DISTR AND FORGOT TO PUT THE LNDG GEAR DOWN.

Narrative: WHILE ON THE LNDG APCH TO FNT ARPT, RWY 27, I WAS REQUESTED TO RPT MY INDICATED AIRSPD (100 KIAS). I DID SO, BUT WAS WARY OF THE REASONS FOR THIS, IE, WAS THERE AN AIRPLANE GAINING ON ME OR WAS I GAINING ON ANOTHER ACFT? I INCREASED MY OUTSIDE SCAN BUT COULD SEE NO OTHER ACFT. SHORTLY THEREAFTER, I WAS CLRED TO LAND FOLLOWING ANOTHER ACFT ON SHORT FINAL. I COULD NOT LOCATE THE OTHER AIRPLANE. WHEN I FINALLY DID LOCATE THE OTHER ACFT IT WAS NEARING TOUCHDOWN AND I WAS ON SHORT FINAL. I RPTED THE ACFT IN SIGHT. AT ABOUT THIS TIME THE RADAR ALTIMETER IN MY ACFT WENT OFF (AN INDICATOR LIGHT AND SOUND). I NORMALLY DO NOT USE THIS BUT I DID CHK IT AND TRIED TO TURN IT OFF. AFTER THIS, I WAS APCHING THE RWY THRESHOLD AND DID MY ROUND-OUT AND FLARE WITH EYES FIXED WELL DOWN THE RWY. UNFORTUNATELY, I NEGLECTED TO EXTEND THE LNDG GEAR. I BELIEVE THE CAUSE OF THIS INCIDENT WAS ALLOWING MYSELF TO BE DISTR FROM MY NORMAL ROUTINE. NORMALLY, I DO SEVERAL ROUTINE CHKS ON THE LNDG GEAR. THESE SERIES OF SMALL DISTRS BROKE MY NORMAL ROUTINE LEAVING ME VULNERABLE TO THIS GEAR UP LNDG.

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.