Narrative:

We were cleared to land on runway 4L. While on the base leg, the tower changed our instructions to land on runway 4R. A B737 had landed about 1-2 mins ago on runway 4R. At 500 ft, we entered a modified base for runway 4R and encountered either the B737's wake turbulence or possibly windshear. Our aircraft tipped nearly 60 degrees before I could bring it back to wings level. The landing was successful and uneventful. Windshear advisories were not provided, however, the winds were just starting to pick up in velocity.

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Original NASA ASRS Text

Title: A PARTENAVIA P68C-TC PLT HIT LOW LEVEL WINDSHEAR OR POSSIBLY B737 WAKE TURB IN THE HNL TFC PATTERN.

Narrative: WE WERE CLRED TO LAND ON RWY 4L. WHILE ON THE BASE LEG, THE TWR CHANGED OUR INSTRUCTIONS TO LAND ON RWY 4R. A B737 HAD LANDED ABOUT 1-2 MINS AGO ON RWY 4R. AT 500 FT, WE ENTERED A MODIFIED BASE FOR RWY 4R AND ENCOUNTERED EITHER THE B737'S WAKE TURB OR POSSIBLY WINDSHEAR. OUR ACFT TIPPED NEARLY 60 DEGS BEFORE I COULD BRING IT BACK TO WINGS LEVEL. THE LNDG WAS SUCCESSFUL AND UNEVENTFUL. WINDSHEAR ADVISORIES WERE NOT PROVIDED, HOWEVER, THE WINDS WERE JUST STARTING TO PICK UP IN VELOCITY.

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.