ASRS 2001065
ACN 2001065 · 2023-05 · B737 Undifferentiated or Other Model
B737NG Captain reported encountering wake turbulence departing LAS in trail of a B757.
Pilot narrative
Verbatim, de-identified by NASA. Placeholders: ZZZ,
X, Y.
Departure from Runway 26R LAS. It is common practice at LAS for ATC to ask crews to report departing aircraft in sight and upon acknowledgement clear following aircraft for takeoff. We were following a B757 and received takeoff clearance reference above criteria. Upon liftoff we flew through prior departing aircraft's wake and began numerous uncommanded rolling motions. Several corrective actions took large control movements and forward pressure (even verbally stating, "I'm pushing") to counter the wake induced roll. None of the prescribed parameters for an upset were ever breached, but I feel had not taking aggressive actions could have led to an undesired aircraft state. At the time of the event our aircraft was configured for a Flaps 1, Bleeds on, Reduced Thrust Take Off.
NASA classification · Anomalies
- Inflight Event / Encounter
NASA classification · Assessments
- Contributing Factors / Situations
- Environment - Non Weather Related · Procedure
- Primary Problem
- Ambiguous
ASRS reports are voluntary, de-identified by NASA, and represent the reporter's perspective; they are not investigated and cannot be used to infer prevalence. Authoritative source: asrs.arc.nasa.gov ↗