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B767-200 captain reported left pack failed after reaching cruise altitude on a transoceanic flight. Aircraft diverted to nearby airport to plan a different route in compliance with MEL.
| Attributes | |
| ACN | 1057860 |
| Time | |
| Date | 201212 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B767-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After take off and approximately arriving at cruise; EICAS displayed 'left pack temperature.' while performing the QRH procedure the EICAS displayed 'left pack off.' the QRH procedure did not restore the left pack. Via satcom we spoke in conference with our dispatcher and maintenance. Under maintenance direction we attempted to restore the left pack. The left pack came back on briefly but then quickly displayed 'left pack temperature' followed by 'left pack off.' due to the requirement to remain within 1 hour of an airport during single pack operation; ETOPS was no longer possible. Dispatch suggested [a nearby airport] as the best airport to land. After burning fuel to below the maximum landing weight we landed without incident. Maintenance applied the proper MEL and we were dispatched on a route to keep us within 1 hour of an airport.
Original NASA ASRS Text
Title: B767-200 Captain reported left pack failed after reaching cruise altitude on a transoceanic flight. Aircraft diverted to nearby airport to plan a different route in compliance with MEL.
Narrative: After take off and approximately arriving at cruise; EICAS displayed 'L PACK TEMP.' While performing the QRH procedure the EICAS displayed 'L PACK OFF.' The QRH procedure did not restore the left pack. Via SATCOM we spoke in conference with our Dispatcher and Maintenance. Under Maintenance direction we attempted to restore the left pack. The left pack came back on briefly but then quickly displayed 'L PACK TEMP' followed by 'L PACK OFF.' Due to the requirement to remain within 1 hour of an airport during single pack operation; ETOPS was no longer possible. Dispatch suggested [a nearby airport] as the best airport to land. After burning fuel to below the maximum landing weight we landed without incident. Maintenance applied the proper MEL and we were dispatched on a route to keep us within 1 hour of an airport.
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.