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An B767-300 captain instrument transfer bus status message alerted while in cruise so an emergency was declared and the flight returned to the departure airport.
| Attributes | |
| ACN | 991939 |
| Time | |
| Date | 201201 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| 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 Distribution Busbar |
| Person 1 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
About 1 hour after takeoff; received status message 'ca instrument txfer bus'. Elected to return to the departure airport. Declared emergency due to overweight landing. Landed without incident at approximately 332;500 pounds gross weight. Swapped into different aircraft and flew to the planned destination.
Original NASA ASRS Text
Title: An B767-300 CAPT INST TRANSFER BUS status message alerted while in cruise so an emergency was declared and the flight returned to the departure airport.
Narrative: About 1 hour after takeoff; received status message 'CA INST TXFER BUS'. Elected to return to the departure airport. Declared emergency due to overweight landing. Landed without incident at approximately 332;500 LBS gross weight. Swapped into different aircraft and flew to the planned destination.
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.