Narrative:

On final approach when selecting flaps 25 degrees; we had a trailing edge flap disagreement warning. Performed go around and followed QRH procedure. Set up on a very long final for runway 27R in atl. Flight director captured GS and localizer. At 800 ft; received aural warning 'too low gear.' extended gear and landed uneventfully. I believe fatigue was the major factor. Last leg of a 4 day trip. All-nighter flown in the middle. Last day of trip had 8 hours 53 mins of block time. I also believe our company's recent concerns about fuel consumption played a minor role. We intercepted the GS well outside the marker and I thought 'no need to put the gear down this early' because of fuel burn; even though I should have in any abnormal situation. Just a carryover of my thinking in a normal approach. Do not get the airplane dirty until necessary. I always check the gear at 500 ft AGL on every approach so probably would have caught it then if the aural warning had not sounded but don't like to let the situation progress to that point.

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Original NASA ASRS Text

Title: FOLLOWING A GAR DUE TO A FLAP DISAGREEMENT EICAS WARNING; FLT CREW OF B757 FAIL TO EXTEND GEAR PRIOR TO SELECTING LNDG FLAPS. CITE FATIGUE AND MINDSET REGARDING MINIMIZING FUEL BURN FOR ECONOMIC REASONS.

Narrative: ON FINAL APCH WHEN SELECTING FLAPS 25 DEGS; WE HAD A TRAILING EDGE FLAP DISAGREEMENT WARNING. PERFORMED GAR AND FOLLOWED QRH PROC. SET UP ON A VERY LONG FINAL FOR RWY 27R IN ATL. FLT DIRECTOR CAPTURED GS AND LOC. AT 800 FT; RECEIVED AURAL WARNING 'TOO LOW GEAR.' EXTENDED GEAR AND LANDED UNEVENTFULLY. I BELIEVE FATIGUE WAS THE MAJOR FACTOR. LAST LEG OF A 4 DAY TRIP. ALL-NIGHTER FLOWN IN THE MIDDLE. LAST DAY OF TRIP HAD 8 HRS 53 MINS OF BLOCK TIME. I ALSO BELIEVE OUR COMPANY'S RECENT CONCERNS ABOUT FUEL CONSUMPTION PLAYED A MINOR ROLE. WE INTERCEPTED THE GS WELL OUTSIDE THE MARKER AND I THOUGHT 'NO NEED TO PUT THE GEAR DOWN THIS EARLY' BECAUSE OF FUEL BURN; EVEN THOUGH I SHOULD HAVE IN ANY ABNORMAL SITUATION. JUST A CARRYOVER OF MY THINKING IN A NORMAL APCH. DO NOT GET THE AIRPLANE DIRTY UNTIL NECESSARY. I ALWAYS CHK THE GEAR AT 500 FT AGL ON EVERY APCH SO PROBABLY WOULD HAVE CAUGHT IT THEN IF THE AURAL WARNING HAD NOT SOUNDED BUT DON'T LIKE TO LET THE SITUATION PROGRESS TO THAT POINT.

Data retrieved from NASA's ASRS site as of January 2009 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.