<< >> NASA ASRS Report 200251, January 1992

Surface wind conditions creates a wind shear situation and subsequent air speed deviations for air carrier large transport in landing procedure.

Attributes
ACN	200251
Time
Date	199201
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : atl
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 15000 flight time type : 6000
ASRS Report	200251
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	inflight encounter other other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	other

Narrative:

Gusty wind scattered clouds, no airspeed deviation broadcast. IOE first officer, so captain landed aircraft. On short final, over runway aircraft got a good gust of wind, captain did not see amount of airspeed deviation. Made normal landing, no problems. Turned off at usual highspd exit at normal speed. Asked first officer if he noticed amount of airspeed deviation. He thought it was about plus 15/20 KTS. A GA was not considered prudent or necessary because aircraft was already in landing phase and was obviously in no danger. Tower was advised of plus airspeed deviation on final for safety of following aircraft.

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Original NASA ASRS Text

Title: SURFACE WIND CONDITIONS CREATES A WIND SHEAR SITUATION AND SUBSEQUENT AIR SPD DEVS FOR ACR LGT IN LNDG PROC.

Narrative: GUSTY WIND SCATTERED CLOUDS, NO AIRSPD DEV BROADCAST. IOE FO, SO CAPT LANDED ACFT. ON SHORT FINAL, OVER RWY ACFT GOT A GOOD GUST OF WIND, CAPT DID NOT SEE AMOUNT OF AIRSPD DEV. MADE NORMAL LNDG, NO PROBLEMS. TURNED OFF AT USUAL HIGHSPD EXIT AT NORMAL SPD. ASKED FO IF HE NOTICED AMOUNT OF AIRSPD DEV. HE THOUGHT IT WAS ABOUT PLUS 15/20 KTS. A GA WAS NOT CONSIDERED PRUDENT OR NECESSARY BECAUSE ACFT WAS ALREADY IN LNDG PHASE AND WAS OBVIOUSLY IN NO DANGER. TWR WAS ADVISED OF PLUS AIRSPD DEV ON FINAL FOR SAFETY OF FOLLOWING ACFT.

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.