Hawker Beechcraft Hawker 800XP, Руководство по эксплуатации для пилотов

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Page 7-8
Pilot’s Operating Manual
Revision A2: Nov, 2004
Sub-section 7
STALL WARNING/IDENTIFICATION
Hawker 800XP Pro Line 21
Section III - SYSTEMS DESCRIPTION
SYSTEM FAULTS and ANNUNCIATIONS
The duplication of the stall warning system makes sure a single passive fault cannot prevent a stick
shake occurring. Should an active fault develop, the faulty system can be isolated via the appropriate
circuit breaker.
The remaining good system will still operate both stick shaker motors. The stall identification system is
designed that a single active fault cannot give an inadvertent stick push, while making sure a single
passive fault would not prevent a push operation occurring, when required.
All annunciator warnings in the stall warning and identification system will also cause a repeater STALL
IDENT annunciator on the MWS panel to illuminate (reference Figure 5). The power to energize a stall
valve is routed via the identification relay of one channel and the warning relay of the other channel.
A monitoring circuit will cause an IDENT 1 or IDENT 2 annunciator (depending on the channel at fault)
to be illuminated after a 4 second time delay, if an identification signal from one SSU has been triggered
without a warning signal from the other SSU.
The IDENT 1 or IDENT 2 annunciators are part of the IDENT/INHIB switches provided for both pilots.
When an IDENT annunciator illuminates, either pilot can push the associated switch to inhibit the faulty
channel. The INHIB annunciator part of the switch will then illuminate. The third channel sensor,
together with the remaining SSU would provide a stick push operation when required.
The pilots may attempt to reset the failed channel by operating an INHIBIT RESET switch located on
the stall diagnostic panel (forward side of the Pilot’s bulkhead).
Should the channel fail again after reset, it should be inhibited and left in that condition for the remainder
of the flight.
M6949_0
HA00C
017044AA.AI
Figure 5
System Fault Annunciators
MWS Panel