Time Between Overhauls (TBO) for Rotax Aircraft Engines
| |
Rotax 2-Stroke UL Engines |
Rotax 4-Stroke UL Engines |
| |
912UL |
912 ULS |
912 ULSFR |
914UL |
| 300h / 5 years |
All |
|
|
|
|
| 600h / 10 years |
|
≤ 4,152.666
SI-26-1994
to 1200h |
|
|
|
| 1000h / 10 years |
|
|
|
|
≤ 4,418.103
SB-914-027UL
to 1200h |
| 1200h / 10 years |
|
|
≤ 4,427.532
SB-912-041UL
to 1500h |
≤ 4,429.714
SB-912-041UL
to 1500h |
|
| 1200h / 12 years |
|
|
|
|
≥ 4,418.104 |
| 1200h / 15 years |
|
≥ 4,152.667
≤ 4,404.717
SB-912-041UL
to 1500h |
|
|
|
| 1500h / 12 years |
|
|
≥ 4,427.533 |
≥ 4,429.715 |
|
| 1500h / 15 years |
|
≥ 4,404.718 |
|
|
|
Example:
You have an 912 ULS engine with a serial number of 4,427.116.
In the 912 ULS column, you'll notice that the serial numbers
which are inferior or equal to 4,427.532 have a TBO of 1200h /
10 years. You will also notice that the TBO can be increased to
1500h when the instructions contained in service document
SB-912-041UL are followed. You can find these service documents
on
www.rotax-owner.com.
|
