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B737 flight crew reported a 'foul stench' during taxi; takeoff which dissipated and returned on descent. Captain suggested the likely cause was a 'compressor wash' on the overnight layover.
| Attributes | |
| ACN | 1715653 |
| Time | |
| Date | 202001 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 96 Flight Crew Total 441 Flight Crew Type 441 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
Aircraft had engine wash [the] night before flight. During taxi and takeoff noticed foul stench from aircraft conditioned air. Went from bad during takeoff roll to worse on initial climb. Slowly dissipated but not without crew consideration of in flight return. Finally tolerable at about 6-10 thousand feet and didn't notice again until descent below 10 thousand feet. Odor was foul but not threatening.
Original NASA ASRS Text
Title: B737 flight crew reported a 'foul stench' during taxi; takeoff which dissipated and returned on descent. Captain suggested the likely cause was a 'compressor wash' on the overnight layover.
Narrative: Aircraft had engine wash [the] night before flight. During taxi and takeoff noticed foul stench from aircraft conditioned air. Went from bad during takeoff roll to worse on initial climb. Slowly dissipated but not without crew consideration of in flight return. Finally tolerable at about 6-10 thousand feet and didn't notice again until descent below 10 thousand feet. Odor was foul but not threatening.
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.