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OFF.
(6) Select both L PACK and R PACK switches to OFF.
Continued on next page →
Quick Reference Handbook
REVISION 7 NORMAL PROCEDURES
May 30/02 Page NG -17
Engine Start - Manual Operation Of Start Valve, ctd… OM 09-03-40
(7) On appropriate engine cowl, open start valve access panel.
(8) Using socket, extension and breaker bar on start valve
manual wrenching feature, position valve to OPEN and
hold.
(9) Start engine using cross bleed starting technique as
follows:
(a) Notify outside crewmember that engine is to be
started.
(b) Increase opposite engine RPM to approximately 75%
HP RPM. This will provide a bleed air manifold
pressure of approximately 30 psi.
(c) Select ISOLATION valve to OPEN.
(d) Select ENG START switch to ON for engine to be
started.
(e) Select BLEED AIR switch to ON for operating engine.
Continue with normal engine start. Using power lever,
maintain 25-30 psi bleed air manifold pressure
throughout engine start cycle.
(f) Upon attaining 40% HP RPM, select both BLEED AIR
switches to OFF. Remove pressure from manifold.
Notify outside crewmember to position valve to
CLOSED.
(g) Select ENG START switch to OFF.
(10) Remove tools, check for presence of foreign objects then
close engine cowl start valve access panel.
(11) Close and secure start valve access door.
END
Quick Reference Handbook
NORMAL PROCEDURES REVISION 7
Page NG - 18 May 30/02
Figure 1: Rolls Royce Tay Engine Start Valve
Quick Reference Handbook
REVISION 7 NORMAL PROCEDURES
May 30/02 Page NG -19
Operational Procedures With Cowl Anti-Ice
Valve Locked Open OM 09-03-50
THIS PROCEDURE IS TO BE USED IN ACCORDANCE WITH GIV
MMEL “M” AND “O” PROCEDURES.
1. Procedure:
A. General:
If a cowl anti-ice valve fails to operate during preflight checkout
and icing conditions are expected during flight, the airplane
may be dispatched with that cowl anti-ice valve manually
locked open.
NOTE: Use of this procedure is intended for extreme circumstances,
where dispatch of the airplane is essential. It is not intended for
routine operation.
B. References:
• GIV Master Minimum Equipment List, System 30
• GIV Airplane Flight Manual, Limitations, Section 01-30-20:
Cowl Anti-Icing
• GIV Aircraft Maintenance Manual, Chapter 30
C. Procedure:
(1) Start engine having operative cowl anti-ice valve using
either APU BLEED AIR or an external air source.
(2) After engine is started, select APU BLEED AIR (or external
air source) OFF. Also select ENG BLEED AIR of that
running engine to OFF. DO NOT RESELECT APU BLEED
AIR ON FOR REMAINDER OF OPERATIONS. APU
BLEED AIR MUST NOT BE SELECTED ON WITH COWL
ANTI-ICE VALVE IN OPEN POSITION.
(3) Manually lock the inoperative cowl anti-ice valve OPEN.
Refer to GIV Aircraft Maintenance Manual, Chapter 30.
(4) Select ENG BLEED AIR of running engine to ON. Ensure
the ISOLATION valve is OPEN by either selecting the
START MASTER switch to ON or the ISOLATION valve
switch to OPEN.
(5) Ensure area behind airplane is clear.
Continued on next page →
Quick Reference Handbook
NORMAL PROCEDURES REVISION 7
Page NG - 20 May 30/02
Operational Procedures With Cowl Anti-Ice Valve
Locked Open, ctd… OM 09-03-50
(6) Increase running engine RPM to approximately 80% HP
RPM. This will provide a bleed air manifold pressure of
approximately 30 psi.
NOTE: Time with bleed air manifold pressure at 30 psi before
starting the remaining engine should be kept to a minimum.
(7) Start engine having inoperative cowl anti-ice valve using
normal procedures.
(8) After engine start is complete, retard power lever to idle,
close ISOLATION valve and complete the After Starting
Engines checklist.
(9) The autothrottle will operate normally. With the cowl antiice
valve locked OPEN and pressurized, the respective
COWL ANTI ICE switch must be selected ON to ensure
the autothrottle computes proper EPR settings.
(10) For takeoff operations using autothrottle, Takeoff
Initialization (TAKEOFF INIT) must be properly addressed.
COWL ANTI-ICE must be initialized as “ON” for TAKEOFF
INIT and both COWL ANTI ICE switches must be selected
ON whenever the cowl anti-ice valve is locked OPEN for
takeoff. This also applies to Landing Initialization
(LANDING INIT).
(11) With the cowl anti-ice valve locked OPEN and pressurized,
expect COWL ANTI ICE pressure to be approximately 5
psi less than the BLEED AIR pressure supplying the valve.
　
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