Flight Manual STEMME S6
Doc.-No.:P400-006.000 E Page: 3-30 Revision: ---
Date of Issue: 07. October 2008 Agency approved Date of Rev.: --.--.----
3.12.1.9 Loss of Electrical Energy for the Turbo-Control-Unit (TCU)
When the TCU has no energy, because of
- master-switch OFF
- engine-master-switch OFF
- or the corresponding circuit-breakers have popped-out.
the following procedure is recommended:
1.
Turn OFF the waste-gate-actuator with TCU-isolation-switch in the
ACTIVATED position (the switch is UP).
2. Restore electrical-power-supply to the TCU (master-switch ON,
engine-master-switch ON, CHECK the corresponding circuit-breakers)
WAIT for about 10 seconds (TCU-self-test)
4. Turn ON the waste-gate-actuator with TCU-isolation-switch in the
DEACTIVATED position (the switch is DOWN).
5. If it is not possible to restore the electric-power-supply, the RPM and
manifold-air-pressure must be controlled by hand.
Recommended operating limits:
75% MCP
(MAP :
31 inHg, engine speed
5000 RPM).
Lower engine-power must be expected.
Caution: Switch the waste-gate-actuator OFF before restoring the
electrical-power-supply. Otherwise the waste-gate-actuator
will also perform the TCU-self-test.
Caution: If the allowed engine-limits are exceeded, this must be
documented by the pilot in the A/C-logbook with details like:
nature of incident, date, duration and the degree of
exceeding.
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