Document ID: chunk:federal_register_of_legislation:F2017L01427:body:0:p1
Version: federal_register_of_legislation:F2017L01427
Segment Type: other
Provision Reference: 
Character Range: 0–12235

AIRWORTHINESS DIRECTIVE
On the commencement date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below repeals Airworthiness Directive (AD) AD/OXY/6 and issues the following AD under subregulation 39.001 (1) of CASR 1998 and subsection 33 (3) of the Acts Interpretation Act 1901. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct an unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Oxygen Systems
AD/OXY/6 Amdt 1  Passenger Oxygen Masks  23/2017

Applicability:                                                                                                                                                                                                                     02 Corporation Oxygen Mask Presentation Unit Part Numbers as follows:
121-040-04                                                                                                                                                                                                                         150-004-03                                                                                                                                                                                                                                                                                                                                       151-020
150-002                                                                                                                                                                                                                            150-004-04                                                                                                                                                                                                                                                                                                                                       151-020-02
150-002-01                                                                                                                                                                                                                         150-004-05                                                                                                                                                                                                                                                                                                                                       151-020-04
150-002-02                                                                                                                                                                                                                         150-004-06                                                                                                                                                                                                                                                                                                                                       152-001
150-002-03                                                                                                                                                                                                                         150-004-07                                                                                                                                                                                                                                                                                                                                       l52-001-0l
150-002-04                                                                                                                                                                                                                         150-004-08                                                                                                                                                                                                                                                                                                                                       152-001-04
150-002-05                                                                                                                                                                                                                         150-004-12                                                                                                                                                                                                                                                                                                                                       152-001-05
150-002-08                                                                                                                                                                                                                         150-005                                                                                                                                                                                                                                                                                                                                          152-001-08
150-003T                                                                                                                                                                                                                           150-006                                                                                                                                                                                                                                                                                                                                          152-00l-13
150-003-04T                                                                                                                                                                                                                        150-022                                                                                                                                                                                                                                                                                                                                          152-003
150-004                                                                                                                                                                                                                            151-010                                                                                                                                                                                                                                                                                                                                          152-004
150-004-01                                                                                                                                                                                                                         151-010-02                                                                                                                                                                                                                                                                                                                                       152-004-05
150-004-02                                                                                                                                                                                                                         151-010-04
Note 1:  Aircraft known to be fitted with the above part number Oxygen Mask Presentation Units include but are not limited to, British Aerospace 125-800A; Challenger CL600-lAII, CL600‑2B16, and CL600-2A12; Gulfstream G-1159,
G-1159A, G-1159B, and G-IV and Falcon 20.
Note 2.  FAA AD 91-10-05 Amendment 39-6989 refers.
Requirement:                                                                                                                                                                                                                       To prevent malfunctioning of the lanyard release pin that could prevent the flow of oxygen to a passenger in an emergency situation, do the following:
                                                                                                                                                                                                                                        (a) With the oxygen system of the aircraft activated, perform a test of the lanyard release pins by doing the following:
                                                                                                                                                                                                                                           (1) Open the passenger mask presentation units and allow the mask assemblies to drop out.
                                                                                                                                                                                                                                           (2) Prepare a 3.4 kg (7.5 lbs) weight with an attached string and hook, (eg, spring, clip, etc).
                                                                                                                                                                                                                                           (3) Attach the hook to the lanyard attaching point of each mask actuator pin without dropping the weight and allow the weight to hang from the lanyard attaching point.
                                                                                                                                                                                                                                        (b) If the pin pulls free from the oxygen actuator valve at 3.4 kg or less hanging weight, then the pin is serviceable and the unit may be returned to service.
                                                                                                                                                                                                                                        (c) If the pin does not pull free from the oxygen actuator valve, prior to further flight do the following:
                                                                                                                                                                                                                                           (1) Replace the pin with either 02 Corporation part number 100-111-2 or 100-111-3, which has a 20-degree angle and a rounded nose.
                                                                                                                                                                                                                                           Note 3:  The replacement pin is available from Mr Burt Parry, O2 Corporation, 3522 N. Comotara, Wichita, Kansas 67226 USA; Telephone (316) 634-1240; Facsimile (316) 634-1061.
                                                                                                                                                                                                                                           (2) Test the replacement pin installation in accordance with the test requirements of paragraph