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Extended-Range Operations. However, the authorities may under certain conditions allow the
operator to conduct ETOPS flights with limited maximum diversion time (for example, 75 min
diversion time in a benign area of operation) without showing full compliance with these standards.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
EXTENDED RANGE OPERATIONS - GENERAL
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A330/A340 FLEET PRO-SPO-40A-10 P 2/2
FCOM 19 AUG 10
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
EXTENDED RANGE OPERATIONS - OPERATIONAL LIMITATIONS
A330/A340 FLEET PRO-SPO-40A-20 P 1/2
FCOM 19 AUG 10
OPERATIONAL LIMITATIONS
Applicable to: ,
DEFINITIONS
For the purpose of AC 120-42 A and IL N° 20 Extended-Range Operations are those intended to be
conducted over a route that contains a point more than 60 minutes from an adequate airport at the
selected one-engine-inoperative speed in still air and ISA (or prevailing delta ISA) conditions.
An adequate airport is an airport which satisfies the aircraft performance requirements applicable
at the expected landing weight, and sufficiently equipped to be safely used. In particular, at the
anticipated time of use, it should be available and equipped with the necessary services, including
ATC, weather information and at least one let down aid for an instrument approach.
A suitable airport is a confirmed adequate airport which satisfies the dispatch weather minima
requirements for ceiling and visibility within the required validity period. Airport conditions should also
ensure that a safe landing with one engine and/or airframe system inoperative is possible.
AREA OF OPERATION
Applicable to: ,
The maximum distance from an adequate airport must be determined for ISA (or prevailing delta ISA)
and no-wind conditions, taking into account aircraft performance with one engine inoperative and the
remaining engine operating at not more than MCT.
To determine the maximum distance from an adequate airport, the operator must define a diversion
speed strategy as well as an aircraft reference weight for performance computation.
The same diversion speed strategy (Refer to PER-CRZ-OEI-GEN-15 PROCEDURE) must be
considered for :
establishing ‐ the area of operation ;
‐ calculating the single-engine fuel planning,
‐ conducting the diversion in case of engine failure (conditions permitting).
The operator establishes the ETOPS reference gross weight for each route or area of operation. This
must be a representative but conservative value of the aircraft gross weight at the critical point of the
route or at the various critical points of all the routes included in the area of operation.
The-one-engine-inoperative descent and cruise speed law must be chosen so that the associated net
flight path clears the enroute obstacles with the regulatory margin.
Refer to PER-CRZ-OEI-GEN-15 PROCEDUREgives data for two speed schedules. The associated
approved net flight paths are published in the section 6 of the Flight Manual.
When the diversion strategy is chosen, the maximum distance from a diversion airport, can be
directly determined for different maximum diversion times, with the help of the tables provided in this
section. The area of possible ETOPS operation can then be drawn on plotting charts.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
EXTENDED RANGE OPERATIONS - OPERATIONAL LIMITATIONS
A330/A340 FLEET PRO-SPO-40A-20 P 2/2
FCOM 19 AUG 10
Another way to determine the maximum distance to a diversion airport is to read the
one-engine-inoperative cruise TAS (for the reference gross weight and at the FL for best TAS) in the
cruise tables Refer to PER-CRZ-OEI-GEN-15 PROCEDUREtaking into consideration the appropriate
speed strategy and the minimum altitude for clearing possible obstacles. The maximum distance the
aircraft can travel to a diversion airport is this one-engine-inoperative-TAS multiplied by the maximum
allowed diversion time granted to the operator.
Operators whose authorities require that an approved one-engine-inoperative speed be published in
the Flight Manual must use this approved speed.
A330/A340 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
EXTENDED RANGE OPERATIONS - DISPATCH CONSIDERATION
A330/A340 FLEET PRO-SPO-40A-30 P 1/6
FCOM 19 AUG 10
MMEL
Applicable to: ,
The MMEL has been approved taking into consideration the duration of the average ETOPS flight
and the maximum diversion time granted to the airframe/engine combination.
The MMEL published by Airbus Industrie and approved by the French DGAC can be used to
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A330/A340机组操作手册 FLIGHT CREW OPERATING MANUAL FCOM 11(43)
