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Md-11 flight crew reported smoke odor during cruise resulting in a diversion.
| Attributes | |
| ACN | 1522760 |
| Time | |
| Date | 201802 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | MD-11 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 83 Flight Crew Total 11800 Flight Crew Type 3950 |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Ground Event / Encounter Other / Unknown |
Narrative:
While cruising at FL320 the relief officer and I heard a very strange noise coming from the aft; right side of the flight deck; near the library. We looked at each other with a bewildered stare; then attempted to ascertain the source of the noise. We were not able to identify anything that would have produced the noise; and joked it was rats or a haunted plane. Within a minute; the relief officer stated he smelled smoke and I immediately confirmed it. The relief officer donned the oxygen mask while I left my seat to retrieve the captain from the bunk. When I returned I buckled the seat belt and donned oxygen. As I was doing this; the relief officer [advised ATC] we were diverting. The captain took his seat and assumed pilot flying duties.during the divert the relief officer stowed the bunk so we could egress the left side if necessary; searched for the source of the smoke; checked for open circuit breakers; [and] retrieved a fire extinguisher. [We] performed the smoke/fire/fumes checklist; dumped approximately 50;000 pounds of fuel to bring the aircraft below maximum landing weight; sent a divert message via ACARS; retrieved ATIS; retrieved flight data and performance; and backed up the captain and first officer with the arrival and visual approach to runway xx. After landing; the taxi to parking was delayed by ramp construction and barricaded taxiways. Ground crews eventually removed the barricades and led us to the cargo ramp; on the west side of the runway; which is not depicted on the taxi diagram.
Original NASA ASRS Text
Title: MD-11 flight crew reported smoke odor during cruise resulting in a diversion.
Narrative: While cruising at FL320 the Relief Officer and I heard a very strange noise coming from the aft; right side of the flight deck; near the library. We looked at each other with a bewildered stare; then attempted to ascertain the source of the noise. We were not able to identify anything that would have produced the noise; and joked it was rats or a haunted plane. Within a minute; the Relief Officer stated he smelled smoke and I immediately confirmed it. The Relief Officer donned the oxygen mask while I left my seat to retrieve the Captain from the bunk. When I returned I buckled the seat belt and donned oxygen. As I was doing this; the Relief Officer [advised ATC] we were diverting. The Captain took his seat and assumed pilot flying duties.During the divert the Relief Officer stowed the bunk so we could egress the left side if necessary; searched for the source of the smoke; checked for open circuit breakers; [and] retrieved a fire extinguisher. [We] performed the smoke/fire/fumes checklist; dumped approximately 50;000 pounds of fuel to bring the aircraft below maximum landing weight; sent a divert message via ACARS; retrieved ATIS; retrieved flight data and performance; and backed up the Captain and First Officer with the arrival and visual approach to Runway XX. After landing; the taxi to parking was delayed by ramp construction and barricaded taxiways. Ground crews eventually removed the barricades and led us to the cargo ramp; on the west side of the runway; which is not depicted on the taxi diagram.
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.