The engine operating limits are as follows:
| Speed, Temperature and Time Limits (PW4062) |
||||
|---|---|---|---|---|
| Operating Condition |
N1 | N2 | Max EGT | Time Limit |
| Ground Start | - | - | 535°C | Unrestricted |
| Max Cont (Amber Band) |
- | - | 625°C | Unrestricted |
| Takeoff (Red Line) |
- | - | 650°C | 5 mins |
| Max Overspeed | 111.4 | 105.5 | - | 20 sec |
| Max Overtemp | - | - | xxx°C | sec |
|
Boeing Maintenance Manual