Transcript Airbus policy on selection of thrust reversers

Presented by:
Michel DOCUS
Group Manager A320 Family Operational
Standards
Airbus policy on selection of thrust reversers
Following reverser failures
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 2
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 3
Background
• Runway excursion events at landing
due
to mishandling of thrust levers, following , for instance, a dispatch
with one thrust reverser deactivated
• Two main types of mishandling after touchdown:
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Both thrust levers in REV,
then one to CLB or TOGA
OR
One thrust lever remains in CLB
(Single Aisle thrust levers)
For both scenarios : potential runway excursion
16th Performance and Operations conference
May 2009
Page 4
Background
• MMEL with reverser deactivated:
Before April
2006 :
 Recommended NOT to select reverse thrust
on affected engine
 Since
April 2006:
For A320 family/A330/A340/A380
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Simplification of MMEL- procedure:
Select ALL reversers, unless all reversers deactivated
Since April 2006:
Since June 2006:
For A320 Family aircraft
Extended to all Airbus aircraft types
Symmetric selection of thrust reverser levers
16th Performance and Operations conference
May 2009
Page 5
Background
• MMEL with reverser deactivated (cont’d):
 Since
April 2006:
For A310/A300/600/B2/B4
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Simplification of MMEL- procedure:
Select First ALL reversers to Idle, then MAX REV only
on the operative side
Since April 2006:
Since June 2006:
For A320 Family aircraft
Extended to all Airbus aircraft types
(Due to failure cases* where the thrust lever cannot move beyond REV
IDLE )
*:Depends on Aircraft type
16th Performance and Operations conference
May 2009
Page 6
Background
Today’s presentation: Recall of the Airbus policy,
including in-flight failure impacting reverser status
for A320 Family/A330/A340/A380 *
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
ENG REVERSE UNLOCKED
ENG FAIL
A320
examples HYD G+B SYS LO PR
ELEC DC BUS 1+2 FAULT
* : Most of the examples are A320 examples, but principle also valid for LR and A380
16th Performance and Operations conference
May 2009
Page 7
Background
• For A300/A310/A300-600:
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Specific presentation during the dedicated
A300/A310/A300-600 session :
“Landing Procedure Enhancement “
16th Performance and Operations conference
May 2009
Page 8
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 9
Reverser Selection Policy
• A simple and common policy
Same
procedure for
– MMEL dispatch, and
– In-flight failures
Same
procedure for Rejected Take Off (RTO) and for landing
 Airbus general recommendation is:
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
All reversers inoperative and/or de-activated:
Do NOT select thrust reversers
At least one reverser operative:
Select ALL thrust reversers
 Always symmetric selection of thrust reverser levers
16th Performance and Operations conference
May 2009
Page 10
Reverser Selection Policy
All reversers inoperative and/or de-activated:
Do NOT select thrust reversers
 Common
sense: no benefit of selecting the reversers
 Be prepared (dedicated briefing for RTO)
 Retard thrust levers to Idle
 Importance of arming the ground spoilers
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
– To ensure extension of ground spoilers and autobrake activation
At least one reverser operative:
Select ALL thrust reversers
Procedure
16th Performance and Operations conference
consistent with Standard Operating Procedure
May 2009
Page 11
Reverser Selection Policy
• Today : MMEL exception for A320 Family with CFM and IAE
IF
– MEL dispatch : ENG x REV deactivated
AND
– Then in flight on the same engine: ENG x REVERSE UNLOCKED
caution
Do NOT select thrust reverser
On the affected engine at landing
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
 APPROACH BRIEFING: Apply MMEL (o) procedure
• But Tomorrow…
16th Performance and Operations conference
May 2009
Page 12
Reverser Selection Policy
• ...MMEL update to cancel these exceptions for CFM and IAE
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
– Following latest results from CFM and IAE
Dispatch with one
Reverser deactivated
16th Performance and Operations conference
select ALL thrust
reversers
May 2009
Page 13
Reverser Selection Policy
• FCTM revision in 2008 (SA/LR:July 2008 ; A380:October 2008)
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
recommendation on the reverser selection when reverser(s) is inoperative
(covering in-flight failures and MEL dispatch)
16th Performance and Operations conference
May 2009
Page 14
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 15
Reminder on operational impacts
• What are the operational consequences if you select all reversers
while one reverser is inoperative ?
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
 Reminder of operational impacts:
1 - ECAM effect at reverser selection
2 - Landing distance impacted
3 - Lateral control considerations
4 - Maintenance action or MEL entry for next flight
16th Performance and Operations conference
May 2009
Page 16
Reminder on operational impacts
1 - ECAM effect at reverser selection
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
– “ENG x REV FAULT” alert may appear
ENG 2 REV FAULT
As reminder only, no further action required
– No green “REV” indication
(amber or no indication)
Callout “NO REVERSE ENGINE x”
16th Performance and Operations conference
May 2009
Page 17
Reminder on operational impacts
2 - Landing distance impacted
Apply
the landing distance factor provided in the QRH
50ft
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Refer to : “APPROACH WITH FAILURES” - OLM 2008
« LANDING DISTANCE WITH FAILURES » - PARIS 2009
Session 9 A320 Family/A330/A340
Landing Distance with failures
New Landing Distance Factors
16th Performance and Operations conference
May 2009
Page 18
Reminder on operational impacts
3 – Be prepared for lateral control
– Apply the usual FCTM and FCOM-SOP techniques for lateral
control:
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
FCOM – SOP:
– Crosswind limitations for automatic rollout (depending on aircraft
type) remain applicable:
Example : A320 FCOM 3.01.22:
16th Performance and Operations conference
May 2009
Page 19
Reminder on operational impacts
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
4 - Maintenance action or MMEL entry for next flight
16th Performance and Operations conference
May 2009
Page 20
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 21
Training recommendations
• BRIEFING:
Highlight
importance of briefing: Focus the unusual => not a
litany
– Review the reversers status
– Brief the thrust reverser selection and associated display
Guidelines
for Flight Crew Training Centers
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
In case of One reverser inoperative:
16th Performance and Operations conference
May 2009
Page 22
Training recommendations
• TRAINING :
FOT
(10 Oct 2007): “Training recommendation on Dispatch with One
Thrust Reverser Deactivated” :
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
– Airbus recommends to reinforce flight crew training (initial and recurrent)
for situations of dispatch with one thrust reverser deactivated and/or
for situations with failure leading to inoperative thrust reverser.
16th Performance and Operations conference
May 2009
Page 23
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
Contents
1
Background
2
Reverse thrust selection policy
3
Reminder on operational impacts
4
Training recommendations
5
Conclusion
16th Performance and Operations conference
May 2009
Page 24
Conclusion
Airbus wants to PROMOTE SYMMETRIC USE of the thrust
levers on A320 Family/A330/A340/A380 to avoid risk of
runway excursions
© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.
WHEN AT LEAST ONE
REVERSER
OPERATIVE
Select ALL thrust
reversers
 TRAINING and CREW BRIEFING are KEY FACTORS
for correct thrust lever management in unusual situations.
16th Performance and Operations conference
May 2009
Page 25
Proprietary document.
By taking delivery of this Presentation (hereafter “Presentation”), you accept on behalf of your company to comply with the following. No
other property rights are granted by the delivery of this Presentation than the right to read it, for the sole purpose of information. This
Presentation, its content, illustrations and photos shall not be modified nor reproduced without prior written consent of Airbus S.A.S. This
Presentation and the materials it contains shall not, in whole or in part, be sold, rented, or licensed to any third party subject to payment or
not. This Presentation may contain market-sensitive or other information that is correct at the time of going to press. This information
involves a number of factors which could change over time, affecting the true public representation. Airbus assumes no obligation to
update any information contained in this document or with respect to the information described herein.
The statements made herein do
not constitute an offer or form part of any contract. They are based on Airbus information and are expressed in good faith but no warranty
or representation is given as to their accuracy. When additional information is required, Airbus S.A.S can be contacted to provide further
details. Airbus S.A.S shall assume no liability for any damage in connection with the use of this Presentation and the materials it contains,
even if Airbus S.A.S has been advised of the likelihood of such damages. This licence is governed by French law and exclusive jurisdiction
is given to the courts and tribunals of Toulouse (France) without prejudice to the right of Airbus to bring proceedings for infringement of
copyright or any other intellectual property right in any other court of competent jurisdiction.