Narrative:

Light snow prior to push; deice type-I 50/50. Anti-ice lyondell arctic shield type-iv 100%. Approximately 10 minutes prior to departure; snow intensity increased; estimated to be moderate. Holdover time 45 minutes to 1 hour 15 minutes. Departed 37 minutes after beginning of final application. All wing contamination was observed to shear prior to rotation during normal takeoff. After reaching cruises altitude; captain went to lavatory and happened to overhear flight attendant supervisor; who was on board as #4 flight attendant; mention her concerns relative to another airlines crash study. Captain felt it was prudent to file an as soon as possible for protection against any possible confusion or after the fact speculation; even though neither of us could determine any fault in our application of SOP. Supplemental information from acn 819421: in cruse one of the flight attendants commented that she: 1) thought we were returning to the gate to deice; 2) had concerns that we departed with snow on the wings; 3) had just come from recurrent where they showed aircraft crashes from aircraft holding out for takeoff in snowstorms too long and attempting the takeoff. I feel that we complied with our company procedures exactly as we have been trained and exactly as it is outlined in our manual. I do not believe we departed with ice/snow on the wings and further; the type iv worked as expected; shearing during the takeoff roll. End of statement. I feel I should have been clearer with the flight attendants as to my intentions regarding when we would return to the gate should we be unable to depart. I also feel (and I communicated this to the flight attendant) that if she was concerned; she should have said so immediately and brought this to my attention. In discussion with all the flight attendants; I told them to always bring their concerns to the attention of the cockpit crew as their input is valid and essential.

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Original NASA ASRS Text

Title: B737 flight crew reported a Flight Attendant concern that they departed with snow on their wings although aircraft was deiced and departed within the calculated hold over time.

Narrative: Light snow prior to push; Deice Type-I 50/50. Anti-ice Lyondell Arctic Shield Type-IV 100%. Approximately 10 minutes prior to departure; snow intensity increased; estimated to be moderate. Holdover time 45 minutes to 1 hour 15 minutes. Departed 37 minutes after beginning of final application. All wing contamination was observed to shear prior to rotation during normal takeoff. After reaching cruises altitude; Captain went to lavatory and happened to overhear Flight Attendant Supervisor; who was on board as #4 Flight Attendant; mention her concerns relative to another airlines crash study. Captain felt it was prudent to file an ASAP for protection against any possible confusion or after the fact speculation; even though neither of us could determine any fault in our application of SOP. Supplemental information from ACN 819421: In cruse one of the Flight Attendants commented that she: 1) Thought we were returning to the gate to deice; 2) Had concerns that we departed with snow on the wings; 3) Had just come from Recurrent where they showed aircraft crashes from aircraft holding out for takeoff in snowstorms too long and attempting the takeoff. I feel that we complied with our Company procedures exactly as we have been trained and exactly as it is outlined in our manual. I do not believe we departed with ice/snow on the wings and further; the Type IV worked as expected; shearing during the takeoff roll. End of statement. I feel I should have been clearer with the Flight Attendants as to my intentions regarding when we would return to the gate should we be unable to depart. I also feel (and I communicated this to the Flight Attendant) that if she was concerned; she should have said so immediately and brought this to my attention. In discussion with all the Flight Attendants; I told them to always bring their concerns to the attention of the cockpit Crew as their input is valid and essential.

Data retrieved from NASA's ASRS site as of April 2012 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.