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B757 aircraft on short final approach encountered what appeared to be wake turbulence, strong rolling moment. Flight crew corrected the roll, but touched firmly on the runway and bounced. Captain took control of aircraft. An aircraft waiting takeoff thought they saw the aircraft's left engine hit the ground. Postflt inspection revealed no damage. Aircraft that had preceded reporter were a B1900 and before that a B737.
| Attributes | |
| ACN | 376298 |
| Time | |
| Date | 199708 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mco |
| State Reference | FL |
| Altitude | agl bound lower : 20 agl bound upper : 40 |
| Aircraft 1 | |
| Controlling Facilities | tower : mco |
| 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 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 376298 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 376034 |
| Events | |
| Anomaly | inflight encounter other other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : regained aircraft control |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Making visual approach into mco runway 18L encountered strong rolling moment just prior to touchdown. Felt like strong wake turbulence but we were only following a B1900 who was following a B737. The WX was good but there were thunderstorms building south of field. About 20-40 ft above runway had strong rolling force, corrected the roll and firmly touched while adding power. Then bounced and captain took control and completed landing. Airplane holding short of runway reported that possible damage to airplane. Both the captain and I did thorough walkarounds and saw no damage. It felt like wake turbulence but since there were, as far as I know, no heavy planes around, I wonder if it wasn't something associated with a dry microburst. However, there was also no noticeable windshear.
Original NASA ASRS Text
Title: B757 ACFT ON SHORT FINAL APCH ENCOUNTERED WHAT APPEARED TO BE WAKE TURB, STRONG ROLLING MOMENT. FLC CORRECTED THE ROLL, BUT TOUCHED FIRMLY ON THE RWY AND BOUNCED. CAPT TOOK CTL OF ACFT. AN ACFT WAITING TKOF THOUGHT THEY SAW THE ACFT'S L ENG HIT THE GND. POSTFLT INSPECTION REVEALED NO DAMAGE. ACFT THAT HAD PRECEDED RPTR WERE A B1900 AND BEFORE THAT A B737.
Narrative: MAKING VISUAL APCH INTO MCO RWY 18L ENCOUNTERED STRONG ROLLING MOMENT JUST PRIOR TO TOUCHDOWN. FELT LIKE STRONG WAKE TURB BUT WE WERE ONLY FOLLOWING A B1900 WHO WAS FOLLOWING A B737. THE WX WAS GOOD BUT THERE WERE TSTMS BUILDING S OF FIELD. ABOUT 20-40 FT ABOVE RWY HAD STRONG ROLLING FORCE, CORRECTED THE ROLL AND FIRMLY TOUCHED WHILE ADDING PWR. THEN BOUNCED AND CAPT TOOK CTL AND COMPLETED LNDG. AIRPLANE HOLDING SHORT OF RWY RPTED THAT POSSIBLE DAMAGE TO AIRPLANE. BOTH THE CAPT AND I DID THOROUGH WALKAROUNDS AND SAW NO DAMAGE. IT FELT LIKE WAKE TURB BUT SINCE THERE WERE, AS FAR AS I KNOW, NO HVY PLANES AROUND, I WONDER IF IT WASN'T SOMETHING ASSOCIATED WITH A DRY MICROBURST. HOWEVER, THERE WAS ALSO NO NOTICEABLE WINDSHEAR.
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.