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After previously diverting en route for an odor and with the cargo fan meled; the flight continued to the filed destination where on approach the odor returned. So an emergency was declared and the crew donned oxygen masks for a short approach. Several flight attendants reported being ill.
| Attributes | |
| ACN | 1035755 |
| Time | |
| Date | 201209 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Conditioning Distribution System |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 125 Flight Crew Total 18000 Flight Crew Type 4000 |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Experience | Flight Crew Last 90 Days 235 Flight Crew Total 18000 Flight Crew Type 4925 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural MEL Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
Had diverted enroute on the previous leg due to electrical odor on the aircraft. Had a status message for cargo vent fan. Maintenance determined it was an overheated cargo fan causing our electrical odor. Maintenance deferred fan unit and we continued flight to our filed destination. On approach purser called cockpit to report electrical odor again in first class cabin area. We declared [an] emergency and made normal landing. Proceeded to gate after fire rescue again checked the aircraft and odor dissipated and offloaded passengers. Three flight attendants complain of headache; nausea; and scratchy throat. All three were treated by paramedics.
Original NASA ASRS Text
Title: After previously diverting en route for an odor and with the Cargo Fan MELed; the flight continued to the filed destination where on approach the odor returned. So an emergency was declared and the crew donned oxygen masks for a short approach. Several flight attendants reported being ill.
Narrative: Had diverted enroute on the previous leg due to electrical odor on the aircraft. Had a STATUS MSG for CARGO VENT FAN. Maintenance determined it was an overheated cargo fan causing our electrical odor. Maintenance deferred fan unit and we continued flight to our filed destination. On approach Purser called cockpit to report electrical odor again in first class cabin area. We declared [an] emergency and made normal landing. Proceeded to gate after fire rescue again checked the aircraft and odor dissipated and offloaded passengers. Three flight attendants complain of headache; nausea; and scratchy throat. All three were treated by paramedics.
Data retrieved from NASA's ASRS site as of July 2013 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.