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A B737-400 developed a burning oil; smelly socks odor from row 18 to row 23 at the overhead bin level for about 5-10 minutes; the smell dissipated when the initial descent began.
| Attributes | |
| ACN | 969662 |
| Time | |
| Date | 201109 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
Approximately 1 hour duration into flight; 'a' flight attendant notified me of a strong odor; burning oil or smelly socks; starting at row 18 and continuing to row 23. Odor was only noticeable at overhead bin level in cabin. Passenger sitting in that area did not notice an odor. Approximately 5 minutes after I was notified; we began our descent. We tried troubleshooting by isolating the left and right air conditioning packs; but results were inconclusive as it had dissipated and did not return. The duration of strong odor was about 5-10 minutes; after which it dissipated. Due to the short duration of the event it was not possible to conclude a cause of the incident.
Original NASA ASRS Text
Title: A B737-400 developed a burning oil; smelly socks odor from row 18 to row 23 at the overhead bin level for about 5-10 minutes; the smell dissipated when the initial descent began.
Narrative: Approximately 1 hour duration into flight; 'A' Flight Attendant notified me of a strong odor; burning oil or smelly socks; starting at row 18 and continuing to row 23. Odor was only noticeable at overhead bin level in cabin. Passenger sitting in that area did not notice an odor. Approximately 5 minutes after I was notified; we began our descent. We tried troubleshooting by isolating the left and right air conditioning packs; but results were inconclusive as it had dissipated and did not return. The duration of strong odor was about 5-10 minutes; after which it dissipated. Due to the short duration of the event it was not possible to conclude a cause of the incident.
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.