Rotax MML-912 Maintenance Manual page 43

Type description
For the TBO of the specific engine type/version refer to the table below.
(1
Extension of the TBO is possible and will be specified by a Service Bul-
letin (SB) for the respective engine type. For extensions already effective
refer to the engine log book or release certificate.
Extension or exceeding of the TBO by 5 % or 6 months is allowed which-
Authorized ex-
ceeding
ever comes first.
The shipment to an authorized ROTAX overhaul facility must include the
Shipment
following:
1
2
3
4
5
6
Effectivity: 912 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Engine engine affected
engine S/N
912 ULS from 6,775.790
912 ULSFR up to and incl. 4,429.714
912 ULSFR from 4,429.715 up to and
incl. 6,775.789
912 ULSFR from 6,775.790
Engine log book.
Maintenance records of the engine (i.e. all maintenance check lists, and reports
of operation, of maintenance, of findings and of oil analyses).
The engine assembly as per supply volume. Additionally all added-on parts as
in the supply volume such as carburetors, filters, fuel pump, external generator,
sensors, ignition unit, electric starter, oil tank.
Indication of total engine operating hours (TSN) and where applicable, engine
operating hours since a previous overhoul (TSO).
NOTE: This information must be supplied to allow the service his-
tory of components to be traced.
Data about the type of aircraft used.
Useful remarks and observations concerning the engine.
TBO
Time Between Overhaul
2000 hr. or 15 years,
(1
whichever comes first
1200 hr. or 10 years,
(1
whichever comes first
1500 hr. or 12 years,
whichever comes first
2000 hr. or 15 years,
(1
whichever comes first
05-10-00
October 01/2009
page 7