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B767-300 flight crew experiences an electrical odor in the cockpit shortly after level off at FL320. An emergency is declared; fuel is dumped; and flight returns to departure airport.
| Attributes | |
| ACN | 963990 |
| Time | |
| Date | 201108 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Electrical Wiring & Connectors |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
After level off at FL320; an odor of burning electric or plastic was noticed in the cockpit. After bringing the relief pilot and the first flight attendant back to the cockpit; they both confirmed the odor and an emergency was declared with a return to [departure airport] for landing. The emergency checklist was completed and fuel was dumped at FL320. An overweight landing was accomplished with the fire department confirming that we had no overheated brakes or signs of smoke or fire. It was later determined that the wiring bundle leading to the captain's window heater was exposed and melted the plastic/rubber wiring harness on the bottom of the captain's glareshield.
Original NASA ASRS Text
Title: B767-300 flight crew experiences an electrical odor in the cockpit shortly after level off at FL320. An emergency is declared; fuel is dumped; and flight returns to departure airport.
Narrative: After level off at FL320; an odor of burning electric or plastic was noticed in the cockpit. After bringing the Relief Pilot and the First Flight Attendant back to the cockpit; they both confirmed the odor and an emergency was declared with a return to [departure airport] for landing. The emergency checklist was completed and fuel was dumped at FL320. An overweight landing was accomplished with the Fire Department confirming that we had no overheated brakes or signs of smoke or fire. It was later determined that the wiring bundle leading to the Captain's window heater was exposed and melted the plastic/rubber wiring harness on the bottom of the Captain's glareshield.
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.