 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Md-11 captain reported an air condition system 'dirty socks' odor in flight which resulted in a headache and request for maintenance. Three coalescent bags were replaced.
| Attributes | |
| ACN | 1368570 |
| Time | |
| Date | 201607 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization System |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Maintenance Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
As the flight progressed; I noticed an increasingly annoying 'dirty sock' smell from the air conditioning system. The first officer was not as aware of it; but told me his wife tells him he does not have a good sense of smell. By the end of the flight I had developed a headache. I wrote up the problem as a possible fume event. Maintenance was performed on the aircraft by changing the coalescent bag on all three packs. [Caused by] contaminants in the ventilation system that caused an irritating and potentially toxic odor.[recommend] vigilance on the part of our crews and maintenance to recognize and correct these problems earlier. In addition; we need the same filtration on our ventilation system as other aircraft.
Original NASA ASRS Text
Title: MD-11 Captain reported an air condition system 'dirty socks' odor in flight which resulted in a headache and request for Maintenance. Three coalescent bags were replaced.
Narrative: As the flight progressed; I noticed an increasingly annoying 'dirty sock' smell from the air conditioning system. The First Officer was not as aware of it; but told me his wife tells him he does not have a good sense of smell. By the end of the flight I had developed a headache. I wrote up the problem as a possible fume event. Maintenance was performed on the aircraft by changing the coalescent bag on all three packs. [Caused by] contaminants in the ventilation system that caused an irritating and potentially toxic odor.[Recommend] vigilance on the part of our crews and maintenance to recognize and correct these problems earlier. In addition; we need the same filtration on our ventilation system as other aircraft.
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.