A fokker 100 rolled when encountering wake turbulence from a preceding B757 5 mi ahead.

Attributes
ACN	288118
Time
Date	199411
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mco tower : lit
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
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 other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 19000 flight time type : 2800
ASRS Report	288118
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	inflight encounter other other anomaly
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : exited adverse environment flight crew : regained aircraft control
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 30000
Supplementary
Air Traffic Incident	other

Narrative:

On airport, mco, #2 autoplt on, altitude hold on, heading mode and first officer flying, 10 degree roll to right approximately 40 degree roll to left, autoplt disconnected, second hit approximately 18 degree roll to right. Asked controller what type aircraft we were following and found out it was a 757. The winds at 6000 ft were zero on our primary navigation display. Reported to controller and was vectored away from his track. Controller reported the 757 -- 5 mi ahead and that is what the TCASII showed. No loss of control.

Original NASA ASRS Text

Title: A FOKKER 100 ROLLED WHEN ENCOUNTERING WAKE TURB FROM A PRECEDING B757 5 MI AHEAD.

Narrative: ON ARPT, MCO, #2 AUTOPLT ON, ALT HOLD ON, HDG MODE AND FO FLYING, 10 DEG ROLL TO R APPROX 40 DEG ROLL TO L, AUTOPLT DISCONNECTED, SECOND HIT APPROX 18 DEG ROLL TO R. ASKED CTLR WHAT TYPE ACFT WE WERE FOLLOWING AND FOUND OUT IT WAS A 757. THE WINDS AT 6000 FT WERE ZERO ON OUR PRIMARY NAV DISPLAY. RPTED TO CTLR AND WAS VECTORED AWAY FROM HIS TRACK. CTLR RPTED THE 757 -- 5 MI AHEAD AND THAT IS WHAT THE TCASII SHOWED. NO LOSS OF CTL.

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.