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Where available by helicopter model, externally mounted life rafts are preferred over those inter-nally mounted. The OGP recommends a helicopter installation whereby:
. Primary deployment is by single action from the normal crew positions
. Secondary deployment is from the passenger compartment with the cabin in an upright atti-tude, and
. Deployment is possible from outside the helicopter when in either an upright or inverted atti-tude. In this case the life raft is mounted externally on the helicopter. This is the preferred installation on long-term contracts.
10.3.3 Helicopter flotation gear
If helicopters are to be operated over the water, they should be capable of alighting on the surface of the water, either by virtue of inherent design features, e.g. boat hull, fixed floats, etc. or with the aid of flotation gear. It is a requirement that all offshore helicopters be fitted with flotation gear and it is recommended that this be automatically inflated on contact with water. For all new long-term contracts, automatically operated flotation gear is mandatory where a suitable modification is avail-able for the helicopter type on contract.
10.3.4 Cabin push-out windows, emergency lighting & seating layout
As a result of a series of underwater egress trials conducted on representative offshore helicopters, OGP has identified additional requirements on all offshore helicopters:
. All apertures in passenger compartments suitable for the purpose of underwater escape shall be able to be opened in such an emergency. Push-out rubber mounted windows are the preferred standard where available for the aircraft model.
. Emergency exit marking systems (ie EXIS or HEEL path lighting) should be available on night flights and be automatically activated following the flooding of the cabin.
. Seat rows should be aligned with windows.
10.4 Fixed-wing equipment
See Appendix 7.
11.Airbases
11.1 Definition
An Airbase is an airport or airstrip (unpaved) used for aeroplanes and or helicopters, and heliport (onshore) or helideck (offshore) only for use by helicopters.
11.2 Airbase design reference
ICAO Annex 14 titled Aerodromes, Volumes I & II, should be used as the basic reference docu-ments in all new airbase design considerations, construction or major rework of existing airbases where no local guidance is available.
Additional details are listed in the helideck, heliport and airstrip sections below.
11.3 Airbase design reviews
In all cases a qualified OGP Member’s Aviation Advisor should participate in all preliminary and critical design reviews for Company airbase construction or modification.
The airbase should in the design phase be planned to provide a clear area for a safe approach/depar-ture path into prevailing winds.
All airbases and supporting facilities (fuel systems, hangars, fire suppression, passenger handling areas, etc.) should have periodic (minimum of annual) safety, operational and quality assurance reviews by appropriate regulatory authority or a qualified Aviation Advisor, and by the Operator, and records of such reviews and any remedial actions taken should be maintained. UK CAA CAP437 contains fuel system inspection guidelines.
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飞机管理指导方针 Aircraft management guidelines(58)
