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Recommendation issued to: Civil Aviation Authority (UK)

Recommendation details
Output No: R20020105
Date issued: 03 July 2002
Safety action status:
Background: Why this Recommendation was developed

Output text

The Australian Transport Safety Bureau recommends that the UK Civil Aviation Authority ensure the adequacy of the maintenance requirements for calibration, functional test and return to service of barometric pressure switches used to activate cabin altitude alerting systems in low capacity pressurised aircraft engaged in the carriage of fare paying passengers and type certificated in the United Kingdom.

Initial response
Date issued: 12 September 2002
Response from: Civil Aviation Authority (UK)
Action status: Closed - Accepted
Response text:

The UK CAA has identified two aircraft types in the category of low capacity pressurised aircraft engaged in the carriage of fare paying passengers and type certificated in the UK: these are the HS125 series aircraft and the BAe Jetstream family. Responsibility for the design and manufacture of the HS125 series aircraft was transferred from the UK to the USA on 1 st August 1995. ATSB has confirmed that the Jetstream was the aircraft sampled in its investigation and that, tile ATS-D considers that the Jetstream has adequate maintenance procedures.

As a general statement, it is UK CAA policy that UK registered aircraft be regularly flight tested in accordance with BCAR Section A or B as appropriate, Sub-section 3-5 (Flight Testing for Renewal of Certificates of Airworthiness or Permits to Fly). Aircraft are tested in accordance with airworthiness flight test schedules for the type and where appropriate these include functional testing of the cabin low pressure warning system and passenger oxygen mask deployment. This policy of periodic flight testing provides UK CAA with a direct means of monitoring and if necessary improving the effectiveness of the continued airworthiness system.

It is therefore concluded that no further action is required from the UK CAA in respect of this Safety Recommendation.

 
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Last update 03 April 2012