A B757 flight crew received a GPWS warning for confign versus ht above the ground. The flight crew had been distracted by a windshear advisory and failed to run the before landing checklist at the normal point. Aircraft confign late for landing.

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Attributes
ACN	330282
Time
Date	199603
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 : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : atl
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 6500 flight time type : 2500
ASRS Report	330282
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument pilot : private
Experience	flight time last 90 days : 210 flight time total : 15000 flight time type : 3000
ASRS Report	330278
Events
Anomaly	non adherence : far
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Routine approach until point where flaps are normally lowered to 30 degrees and before landing checklist is accomplished. At that point tower reported strong gusty winds and reports of 20 KT loss at 200 ft AGL, so we were distracted to recalculate bug speed and actual speed to be flown. Flaps remained at 20 degrees and the before landing checklist was not accomplished at the normal point. At 500 ft AGL the GPWS alerted us to the confign deviation. Flaps were immediately lowered and the checklist accomplished. A significant contributing factor was that I had been off this aircraft type for 5 months and this was the second approach and landing since requalifying with 3 lndgs in the simulator 2 weeks before this incident. Supplemental information from acn 330278: GPWS sounded a 'too low terrain' warning. An unusual situation caused us to forget to perform routine duties.

Original NASA ASRS Text

Title: A B757 FLC RECEIVED A GPWS WARNING FOR CONFIGN VERSUS HT ABOVE THE GND. THE FLC HAD BEEN DISTRACTED BY A WINDSHEAR ADVISORY AND FAILED TO RUN THE BEFORE LNDG CHKLIST AT THE NORMAL POINT. ACFT CONFIGN LATE FOR LNDG.

Narrative: ROUTINE APCH UNTIL POINT WHERE FLAPS ARE NORMALLY LOWERED TO 30 DEGS AND BEFORE LNDG CHKLIST IS ACCOMPLISHED. AT THAT POINT TWR RPTED STRONG GUSTY WINDS AND RPTS OF 20 KT LOSS AT 200 FT AGL, SO WE WERE DISTRACTED TO RECALCULATE BUG SPD AND ACTUAL SPD TO BE FLOWN. FLAPS REMAINED AT 20 DEGS AND THE BEFORE LNDG CHKLIST WAS NOT ACCOMPLISHED AT THE NORMAL POINT. AT 500 FT AGL THE GPWS ALERTED US TO THE CONFIGN DEV. FLAPS WERE IMMEDIATELY LOWERED AND THE CHKLIST ACCOMPLISHED. A SIGNIFICANT CONTRIBUTING FACTOR WAS THAT I HAD BEEN OFF THIS ACFT TYPE FOR 5 MONTHS AND THIS WAS THE SECOND APCH AND LNDG SINCE REQUALIFYING WITH 3 LNDGS IN THE SIMULATOR 2 WKS BEFORE THIS INCIDENT. SUPPLEMENTAL INFO FROM ACN 330278: GPWS SOUNDED A 'TOO LOW TERRAIN' WARNING. AN UNUSUAL SIT CAUSED US TO FORGET TO PERFORM ROUTINE DUTIES.

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.