12.07.2015 Views

31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

31 July 2011 C1 CIVIL AVIATION DEPARTMENT HONG KONG ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

<strong>CIVIL</strong> <strong>AVIATION</strong> <strong>DEPARTMENT</strong><strong>HONG</strong> <strong>KONG</strong>, CHINAAirworthiness Notice1 ApplicabilityTHIS NOTICE GIVES DETAILS OF A MANDATORY ACTIONPUBLIC ADDRESS SYSTEMNo. 101CIssue 130 September 2008This Airworthiness Notice is applicable to all Hong Kong registered aircraft requiredto be equipped with public address systems under Article 13, Schedule 5, ScaleY2(iv)(a) of the Air Navigation (Hong Kong) Order 1995 as amended, for which it isthe first aircraft of the type receiving Hong Kong Type Certification or following anymajor modification to the cabin furnishings or layout resulting acoustical changes.2 Introduction2.1 This Airworthiness Notice is intended to supplement the Air Navigation(Hong Kong) Order 1995 as amended which requires a public addresssystem.2.2 The overall performance of the equipment and its installation shall be suchthat messages may be broadcast so as to be audible and intelligible at allpassenger seats, lavatories, and flight attendant seats and work stations.2.3 Rapid Speech Transmission Index (RASTI)The Rapid Speech Transmission Index (RASTI) is a condensed version of theSpeech Transmission Index method using a subset of the original 98 datapoints. The analysis is restricted to 4 or 5 modulation frequencies and onlytwo octave bands, with centre frequencies of 500 Hz and 2 kHz, giving 9 datapoints. The mean of the nine values obtained is normalised in the range 0 to1.0.3 ComplianceWith effect from 1 January 2009, all applicable aircraft identified in paragraph 1 ofthis Notice shall comply with the requirements in paragraph 4 of this Notice.AN-101C P.130 September 2008

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!