CASA has conducted a preliminary review of Civil Aviation Order
(CAO) 20.18 and examined the history of changes as they relate to
fitment of autopilot equipment. The relevant current
provisions in CAO 20.18 have existed since about 1960 and are
consistent with current provisions of the US Federal Aviation
Administration (FAA) and the European Joint Aviation Authorities
(JAA).
A review of CASA data to identify the 'population' of RPT
Operators and aircraft that are affected revealed a total of 52
aircraft, 80% of which are the Metro SA227. Some feedback
indicates that the standard autopilot approved for this aircraft
type is widely known within the aviation industry to be unreliable
old technology and expensive. This may account for the fact
that few Metro SA227 aircraft are fitted with autopilots. All
Australian aircraft operating in high capacity regular public
transport operations have approved autopilots fitted.
CASA will consult industry through the Standards Consultative
Committee (SCC) before deriving a conclusion on the matter.
Furthermore, CASA has extracted relevant Crew Resource
Management/training and Human Factors material out of draft Civil
Aviation Safety Regulation Part 121A and is developing a Civil
Aviation Advisory Publication. This material is currently
with CASA senior managers for comment.