Division General Electric Turbine Engines - CF34 - AD/CF34/8 Amdt 1 - B Sump Screen - General Electric Turbine Engines - CF34 Series

General Electric Turbine Engines - CF34 Series

AD/CF34/8 Amdt 1	B Sump Screen	4/2005

Applicability:	General Electric Company (GE) CF34-3Al, -3B and -3B1 turbofan engines with scavenge screens part numbers (P/Ns) 4047T95P01 and 5054T86G02 installed in the B-sump oil scavenge system.Note 1: These engines are installed on, but not limited to, Bombardier Inc. (Canadair) Model CL-600-2A12, CL-600-2B16 and CL-600-2B19 aeroplanes.
Requirement:	1. Initial Inspection and Cleaning of B-Sump ScreensPerform an initial visual inspection and cleaning of scavenge screens, P/Ns 4047T95P01 and 5054T86G02, installed in the B-sump oil scavenge system, in accordance with Paragraphs 3A through 3B of the Accomplishment Instructions of General Electric Aircraft Engines (GE) Alert Service Bulletin (ASB) CF34-AL S/B 79-A0014, Revision 3, dated 31 January 2003; or ASB CF34-BJ S/B 79- A00l5, Revision 3, dated 31 January 2003.2. Repetitive Inspections and CleaningPerform repetitive visual inspections and cleaning of scavenge screens, P/Ns 4047T95P01 and 5054T86G02, installed in the B-sump oil scavenge system, in accordance with Paragraphs 3A through 3B of the Accomplishment instructions of GE ASB CF34-AL S/B 79-A00 14, Revision 3; and ASB CF34-BJ S/B 79-A00l5, Revision 3.3. Terminating ActionsInstall new screenless fittings or fittings that have been reworked to remove the screens, in the B-sump oil scavenge system, in accordance with GE ASB CF34-AL S/B 79-A00l6, dated 17 June 2002; or ASB CF34-BJ S/B 79-A0017, dated 17 June 2002.Completion of Requirement 3 of this Directive provides terminating action to this Directive.Note 2: FAA AD 2003-05-10R1 Amdt 39-13337 refers.

Applicability:

General Electric Company (GE) CF34-3Al, -3B and -3B1 turbofan engines with scavenge screens part numbers (P/Ns) 4047T95P01 and 5054T86G02 installed in the B-sump oil scavenge system.Note 1: These engines are installed on, but not limited to, Bombardier Inc. (Canadair) Model CL-600-2A12, CL-600-2B16 and CL-600-2B19 aeroplanes.

Requirement:

1. Initial Inspection and Cleaning of B-Sump ScreensPerform an initial visual inspection and cleaning of scavenge screens, P/Ns 4047T95P01 and 5054T86G02, installed in the B-sump oil scavenge system, in accordance with Paragraphs 3A through 3B of the Accomplishment Instructions of General Electric Aircraft Engines (GE) Alert Service Bulletin (ASB) CF34-AL S/B 79-A0014, Revision 3, dated 31 January 2003; or ASB CF34-BJ S/B 79- A00l5, Revision 3, dated 31 January 2003.2. Repetitive Inspections and CleaningPerform repetitive visual inspections and cleaning of scavenge screens, P/Ns 4047T95P01 and 5054T86G02, installed in the B-sump oil scavenge system, in accordance with Paragraphs 3A through 3B of the Accomplishment instructions of GE ASB CF34-AL S/B 79-A00 14, Revision 3; and ASB CF34-BJ S/B 79-A00l5, Revision 3.3. Terminating ActionsInstall new screenless fittings or fittings that have been reworked to remove the screens, in the B-sump oil scavenge system, in accordance with GE ASB CF34-AL S/B 79-A00l6, dated 17 June 2002; or ASB CF34-BJ S/B 79-A0017, dated 17 June 2002.Completion of Requirement 3 of this Directive provides terminating action to this Directive.Note 2: FAA AD 2003-05-10R1 Amdt 39-13337 refers.

<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>Compliance:</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 style="font-weight:bold">1.</span><span style="width:12.3pt; text-indent:0pt; display:inline-block"> </span><span style="font-weight:bold">Initial Inspection and Cleaning Schedule.</span></p><table cellspacing="0" cellpadding="0" style="margin-top:0pt; margin-left:21.05pt; margin-bottom:0pt; border:0.75pt solid #000000; border-collapse:collapse"><tbody><tr><td style="width:244.35pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span style="font-weight:bold">Engine hours time-since-new (TSN) or time-since-last-shop-visit (TSLSV)</span></p></td><td style="width:126.8pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span style="font-weight:bold">Inspect and clean</span></p></td></tr><tr><td style="width:244.35pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>(1)</span><span> </span><span>Fewer than 4,000 hours TSN or fewer than 4,000 hours TSLSV if it can be confirmed that both the B-sump scavenge screens were cleaned and the B-sump and combustor frame (strut tubes) were removed from the engine and cleaned at that prior shop visit.</span></p></td><td style="width:126.8pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>Before 4,000 hours TSN or TSLSV.</span></p></td></tr><tr><td style="width:244.35pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>(2)</span><span> </span><span>Fewer than 1,000 hours TSLSV if it can NOT be confirmed that both the B sump scavenge screens were cleaned and the B-sump and combustor frame (strut tubes) were removed from the engine and cleaned at that prior shop visit.</span></p></td><td style="width:126.8pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>Before 1,000 hours TSLSV.</span></p></td></tr><tr><td style="width:244.35pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>(3)</span><span> </span><span>4,000 hours or greater TSN or 4,000 hours or greater TSLSV if it can be confirmed that both the B-sump scavenge screens were cleaned and the B sump and combustor frame (strut tubes) were removed from the engine and cleaned at that prior shop visit, or 1,000 hours or greater TSLSV if it can NOT be confirmed that both the B-sump and combustor frame (strut tubes) were removed from the engine and cleaned at that prior shop visit.</span></p></td><td style="width:126.8pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; padding-right:5.03pt; padding-left:5.03pt; vertical-align:top"><p><span>Within 500 hours time-in-service (TIS) after the effective date of this Directive.</span></p></td></tr></tbody></table><p style="margin-left:21.3pt; margin-bottom:11pt; text-indent:-21.3pt"><span style="font-weight:bold">2.</span><span style="width:12.3pt; text-indent:0pt; display:inline-block"> </span><span style="font-weight:bold">Repetitive Inspections and Cleaning.</span></p><p style="margin-top:11pt; margin-left:42.55pt; margin-bottom:11pt; text-indent:-21.25pt"><span>(a)</span><span style="width:7.93pt; text-indent:0pt; display:inline-block"> </span><span>At intervals not to exceed 200 hours time-since-last-inspection (TSLI), if no coke is found in screens during initial or any prior inspections, or</span></p><p style="margin-top:11pt; margin-left:42.55pt; margin-bottom:11pt; text-indent:-21.25pt"><span>(b)</span><span style="width:7.26pt; text-indent:0pt; display:inline-block"> </span><span>At intervals not to exceed 100 hours TSLI, if coke is found in screens during initial or any prior inspections.</span></p><p style="margin-top:11pt; margin-left:21.3pt; margin-bottom:11pt; text-indent:-21.3pt"><span style="font-weight:bold">3.</span><span style="width:12.3pt; text-indent:0pt; display:inline-block"> </span><span style="font-weight:bold">Terminating Actions.</span></p><p style="margin-top:11pt; margin-left:21.3pt; margin-bottom:11pt"><span>Unless previously accomplished:</span></p><p style="margin-top:11pt; margin-left:42.55pt; margin-bottom:11pt; text-indent:-21.25pt"><span>(a)</span><span style="width:7.93pt; text-indent:0pt; display:inline-block"> </span><span>For engines with more than 4,000 hours TSN, within 500 hours TIS after the effective date of this AD, or within 1,000 hours TSLSV, whichever occurs first.</span></p><p style="margin-top:11pt; margin-left:42.55pt; margin-bottom:5pt; text-indent:-21.25pt"><span>(b)</span><span style="width:7.26pt; text-indent:0pt; display:inline-block"> </span><span>For engines with less than or equal to 4,000 hours TSN, prior to 4,500 hours TSN. This constitutes terminating action to the inspections required in paragraph 2 of this AD.</span></p></td></tr></tbody></table>

General Electric Turbine Engines - CF34 General Electric Turbine Engines - CF34 Series

Get a plain-English read of General Electric Turbine Engines - CF34

General Electric Turbine Engines - CF34 Series