Small aircraft pilot misjudges non standard marked displaced threshold and lands short of displaced ...

Attributes
ACN	141774
Time
Date	199004
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lbb
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	descent : approach landing other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 35 flight time total : 385
ASRS Report	141774
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	incursion : runway non adherence : far non adherence : clearance
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Airport
Air Traffic Incident	Operational Deviation Pilot Deviation
Situations
Airport	other physical facility procedure or policy : unspecified

Narrative:

Approaching lbb for landing, I was advised by ATC that the threshold at 17R was displaced 3800'. I was unable to determine the exact location at the threshold, so I estimated 4000' and landed. As soon as I touched down, I saw the markings which consisted of 4 barrels on each side of the runway. This did not resemble any displaced threshold markings I had ever seen. After T/D, tower informed me I had landed in a portion of a closed runway. I replied, 'yes, I see it now. Sorry!' I think this could have been prevented if the threshold had been clearly idented with approved markings. No damage.

Original NASA ASRS Text

Title: SMA PLT MISJUDGES NON STANDARD MARKED DISPLACED THRESHOLD AND LANDS SHORT OF DISPLACED AREA.

Narrative: APCHING LBB FOR LNDG, I WAS ADVISED BY ATC THAT THE THRESHOLD AT 17R WAS DISPLACED 3800'. I WAS UNABLE TO DETERMINE THE EXACT LOCATION AT THE THRESHOLD, SO I ESTIMATED 4000' AND LANDED. AS SOON AS I TOUCHED DOWN, I SAW THE MARKINGS WHICH CONSISTED OF 4 BARRELS ON EACH SIDE OF THE RWY. THIS DID NOT RESEMBLE ANY DISPLACED THRESHOLD MARKINGS I HAD EVER SEEN. AFTER T/D, TWR INFORMED ME I HAD LANDED IN A PORTION OF A CLOSED RWY. I REPLIED, 'YES, I SEE IT NOW. SORRY!' I THINK THIS COULD HAVE BEEN PREVENTED IF THE THRESHOLD HAD BEEN CLEARLY IDENTED WITH APPROVED MARKINGS. NO DAMAGE.

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.

Small aircraft pilot misjudges non standard marked displaced threshold and lands short of displaced area.