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AD/PA-23/12 Amdt 2 - Empennage - Inspection
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AD/PA-23/12 Amdt 2 - Empennage - Inspection
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| AD/PA-23/12 Amdt 2 | Empennage - Inspection | 9/2008 |
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<table cellspacing="0" cellpadding="0" style="width:510.3pt; margin-top:0pt; margin-bottom:0pt; border-collapse:collapse"><tbody><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Applicability:</span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Models PA-23 and PA-23-160 with S/Nos. 23-1 to 23-1267.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Requirement:</span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p style="margin-left:21.3pt; text-indent:-21.3pt"><span>1.</span><span style="width:12.3pt; text-indent:0pt; display:inline-block"> </span><span>Remove the tail cone, covers and fairings, and visually inspect for cracks in the castings listed below.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span></span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><table cellspacing="0" cellpadding="0" style="margin-top:0pt; margin-bottom:0pt; border-collapse:collapse"><tbody><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span style="text-decoration:underline">Part</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span style="text-decoration:underline">Casting Part No.</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span style="text-decoration:underline">Forging Part No.</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Elevator Torque Tube Bracket</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17033-00 & 17033-01</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19407-00</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Front Stabiliser Attachment</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17049-00 & 19253-00</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19409-02</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Rudder Torque Tube Horn</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17060-00</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19405-00</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Elevator Torque Tube Horn</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17066-00</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19404-00</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Rudder Torque Tube Bracket</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17062-00</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19408-00</span></p></td></tr><tr><td style="width:152.3pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Fin Attachment Bracket</span></p></td><td style="width:116.9pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>17072-00</span></p></td><td style="width:111.5pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>19406-00 or 19406-02</span></p></td></tr></tbody></table><p></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span></span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p class="Note"><span>Note:</span><span> </span><span>All the forged parts listed have integral raised digit forging numbers.</span><span> </span><span>Therefore, absence of raised digits will serve to identify the part as a casting.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span></span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p style="margin-left:21.3pt; text-indent:-21.3pt"><span>2.</span><span style="width:12.3pt; text-indent:0pt; display:inline-block"> </span><span>Remove from the aircraft all castings listed in </span><span>Para</span><span>. 1, clean thoroughly removing all paint, and inspect for cracks using an approved fluorescent or dye penetrant method.</span><span> </span><span>Prior to reinstallation of airworthy castings, clean thoroughly, and apply zinc chromate primer.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span></span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Inspect and re-assemble in accordance with Piper SB No.</span><span> </span><span>155B.</span><span> </span><span>Replace cracked castings with a replacement forged or cast part.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span></span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p class="Note" style="margin-bottom:12pt"><span>Note 1:</span><span> </span><span>When any casting is replaced by its respective forging listed above, the repetitive inspections of Paras. 1 and 2 are no longer required for that part.</span></p><p class="Note" style="margin-top:12pt"><span>Note 2:</span><span> </span><span>FAA AD 63-26-03 refers.</span></p></td></tr><tr><td style="width:74.35pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>Compliance:</span></p></td><td style="width:414.55pt; padding-right:5.35pt; padding-left:5.35pt; vertical-align:top"><p><span>For </span><span>Para</span><span>. 1 - At each scheduled inspection for issue of a maintenance release.</span></p></td></tr></tbody></table>
| For Para. 2 - For castings with more than 1000 hours time in service, at the first scheduled inspection for issue of a maintenance release after achieving 1000 hours time in service, and thereafter at intervals not exceeding 500 hours time in service. | |
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| This Amendment becomes effective on 28 August 2008. | |
| Background: | The original issue of this AD specified 100 hourly inspection of the empennage in accordance with Piper SB Nos. 146B and 155B, and FAA AD 57-13-9.DCA/23/12A introduced a requirement for fluorescent or dye penetrant inspection at 500 hour intervals; divided the AD into a Compliance statement and a Requirement statement in a separate supplement; and deleted mention of SB No. 146B.AD/PA-23/12 Amdt 1 changed the title; and amalgamated the Requirement statement and Compliance statement.AD/PA-23/12 Amdt 2 clarified the serial number applicability and Compliance statement; identified FAA AD 63-26-03; and removed the inspections specified in SB No. 146B for transfer to AD/PA-23/91 “Elevator Butt Rib and Plate - Inspection”. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
18 July 2008