Commonwealth legislation

AD/PHS/20 Amdt 2 - Propeller Blade Shanks

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

Mandates owners/operators of Hamilton Standard model 14RF-9 propellers (blade serial numbers below 885751), commonly fitted to Embraer 120 and other types, to perform inspections and corrective work specified in particular Hamilton Standard Service/Alert Bulletins. Operators must arrange and pay for compliance by the stated deadlines to address reported in‑flight loss of propeller blade parts. The directive references multiple bulletin revisions and cross‑references to FAA/Brazilian ADs, with two separate compliance deadlines (22 May 1996 and 31 August 1996).

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AD/PHS/20 Amdt 2 - Propeller Blade Shanks

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Propellers - Variable Pitch - Hamilton Standard

AD/PHS/20

Amdt 2

Propeller Blade Shanks 7/96 DM

Applicability: All model 14RF-9 propellers with blade serial number below 885751. These propellers are installed on but not limited to Embraer 120 aircraft.

Requirement: 1. Action in accordance with Hamilton Standard Service Bulletin No 14RF-9-61-86 Revision 4 or Hamilton Standard Alert Service Bulletin 14RF-9-61-A90, as applicable.

Action in accordance with Hamilton Standard Alert Service Bulletin 14RF-9-61- A92 Revision 2 and is applicable to all propeller blades including those blades which failed the inspection called up in Requirement 1.

Note 1: FAA AD 96-08-01 Amdt 39-9567 refers.

Note 2: FAA AD 96-08-01 Amdt 39-9567 supersedes FAA Priority Letter AD 95-24-09.

Note 3: FAA Priority letter AD 95-24-09 and Brazilian AD EAD NR T95-11-03 HS Amdt 39-752 refer to the initial issue of this Directive.

Compliance: Requirement 1: Unless previously carried out, prior to 22 May 1996.

Requirement 2: Unless previously carried out, prior to 31 August 1996.

Background: The manufacturer has advised that the in-flight loss of part of a propeller blade has occurred. Amendment 1 raised to mandate compliance with SB 14RF-9-61-A92 Revision 1 and to delete Note 1 in the original issue of this Directive. Amendment 2 makes reference to FAA AD 96-08-01 and Revision 2 of Hamilton Standard ASB 14RF-9-61-92.

The original issue of this Airworthiness Directive became effective 30 November 1995.

Amendment 1 of this Airworthiness Directive became effective 2 February 1996.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/PHS/20 Amdt 2 - Propeller Blade Shanks