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Following a delayed taxi out due to weather and field conditions the B737 was deiced and configured for takeoff with the engine bleeds off and the APU utilized for aircraft pressurization per SOP. As they approached V1; vapor (clearly identified as from deicing fluid) began to exit the air vents. The takeoff was continued and after configuring to normal bleeds/APU off the vapor/fumes dissipated and the flight continued. The first officer; the pilot flying; considered but did not suggest a rejected takeoff. Runway heading was maintained until the bleed reconfiguration was completed at which time they complied with their cleared departure.
| Attributes | |
| ACN | 1243725 |
| Time | |
| Date | 201503 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 12500 Flight Crew Type 6000 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
After a lengthy taxi delay; deicing; and runway closures for poor braking; we departed after the snow removal on 4L with a bleeds off takeoff. At 123 knots; smoke with an associated deicing fluid odor was expelling from the air vents in the flight deck. We continued the takeoff flying runway heading until conditions improved; then continued on the SID. The smoke quickly dissipated and we made a safe continuation to the destination. We notified dispatch and maintenance of the situation; verifying the smoke was associated with improper deicing applications into the APU intake.
Original NASA ASRS Text
Title: Following a delayed taxi out due to weather and field conditions the B737 was deiced and configured for takeoff with the engine bleeds off and the APU utilized for aircraft pressurization per SOP. As they approached V1; vapor (clearly identified as from deicing fluid) began to exit the air vents. The takeoff was continued and after configuring to normal bleeds/APU off the vapor/fumes dissipated and the flight continued. The First Officer; the pilot flying; considered but did not suggest a rejected takeoff. Runway heading was maintained until the bleed reconfiguration was completed at which time they complied with their cleared departure.
Narrative: After a lengthy taxi delay; deicing; and runway closures for poor braking; we departed after the snow removal on 4L with a bleeds off takeoff. At 123 knots; smoke with an associated deicing fluid odor was expelling from the air vents in the flight deck. We continued the takeoff flying runway heading until conditions improved; then continued on the SID. The smoke quickly dissipated and we made a safe continuation to the destination. We notified dispatch and maintenance of the situation; verifying the smoke was associated with improper deicing applications into the APU intake.
Data retrieved from NASA's ASRS site 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.