Airworthiness directives › 2008-26-05
AD 2008-26-05 Airworthiness Directives; Bombardier-Rotax GmbH 914 F Series Reciprocating Engines
Makes named: rotax. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Bombardier-Rotax GmbH 914 F series reciprocating engines with engine exhaust muffler, part number (P/N) 979402 or 979404, with serial numbers (SNs) listed in Table 1 of this AD, installed. These engines are installed on, but not limited to, Aeromot-Industria Mecanico Metalurgica, AMT-300 (Turbo Ximango Shark), Diamond Aircraft Industries, HK 36 TTS, HK 36 TTC, HK 36 TTC-ECO, and Stemme GmbH & Co. KG, S10-VT series powered sailplanes. Table 1—Affected Exhaust Mufflers by Group, P/N, and SN Group P/N SN (1) A 979402 02.0001 through 02.0322, 03.0002, 03.0005, 03.0011, 03.0015, 03.0017, 03.0028, 03.0029, 03.0037, 03.0038, 03.0040, 03.0050, 03.0069, 03.0072, 03.0073, 03.0078, 03.0080 through 03.0086, 03.0088 through 03.0090, 03.0092 through 03.0101, 03.0103, and 03.0108. (2) B 979402 03.0001, 03.0003, 03.0004, 03.0006, 03.0007 through 03.0010, 03.0012 through 03.0014, 03.0016, 03.0018 through 03.0027, 03.0030 through 03.0036, 03.0039, 03.0041 through 03.0049, 03.0051 through 03.0068, 03.0070, 03.0071, 03.0074 through 03.0077, 03.0079, 03.0087, 03.0091, 03.0102, and 03.0104 through 03.0107. 979404 03.0200 through 04.0799. Reason (d) Occurrence of cracks in the exhaust muffler in the area of the exhaust bottom and exhaust flange were reported, which could lead to toxic contamination inside the cabin. We are issuing this AD to prevent carbon monoxide contamination in the cockpit, which can adversely affect the pilot, and possibly result in loss of control of the aircraft.
Compliance
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Initial Visual Inspection Group A Exhaust Mufflers (f) For exhaust mufflers specified in Group A of Table 1 of this AD, within 50 hours of operation after the effective date of this AD, do the following: (1) Perform a visual inspection around the fillet weld of the exhaust inlet flange and around the weld of the exhaust outlet for evidence of leakage or cracks. Information on inspecting the exhaust muffler can be found in Bombardier-Rotax GmbH 914 F Service Bulletin (SB) No. SB-914-028 R1, dated November 8, 2004. (2) If you see evidence of an exhaust leak or cracks, replace the exhaust muffler. Group B Exhaust Mufflers (g) For exhaust mufflers specified in Group B of Table 1 of this AD, within 50 hours of operation after the effective date of this AD, do the following: (1) Perform a visual inspection around the weld of the exhaust outlet for evidence of leakage or cracks. Information on inspecting the exhaust muffler can be found in Bombardier-Rotax GmbH 914 F Service Bulletin No. SB-914-028 R1, dated November 8, 2004. (2) If you see evidence of an exhaust leak or cracks, replace the exhaust muffler. Repetitive Visual Inspections (h) Within 50 hours of operation since the last inspection, perform the actions specified in paragraphs (f)(1) through (f)(2) and (g)(1) through (g)(2) of this AD. FAA AD Differences (i) None. Alternative Methods of Compliance (AMOCs) (j) The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (k) Refer to MCAI EASA Airworthiness Directive 2006-0127, dated May 18, 2006, and Bombardier-Rotax GmbH 914 F Service Bulletin No. SB-914-028 R1, dated November 8, 2004, for related information. Contact Bombardier-Rotax GmbH, Gunskirchen, Austria; telephone: 7246-601-423; fax: 7246-601-760, or go to: http://www.rotax-aircraft-engines.com, for a copy of this service bulletin. (l) Contact Richard Woldan, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park; Burlington, MA 01803; telephone (781) 238-7136; fax (781) 238-7199, for more information about this AD. Material Incorporated by Reference (m) None. Issued in Burlington, Massachusetts, on December 11, 2008. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8-30049 Filed 12-19-08; 8:45 am] BILLING CODE 4910-13-P
Required actions
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done. Initial Visual Inspection Group A Exhaust Mufflers (f) For exhaust mufflers specified in Group A of Table 1 of this AD, within 50 hours of operation after the effective date of this AD, do the following: (1) Perform a visual inspection around the fillet weld of the exhaust inlet flange and around the weld of the exhaust outlet for evidence of leakage or cracks. Information on inspecting the exhaust muffler can be found in Bombardier-Rotax GmbH 914 F Service Bulletin (SB) No. SB-914-028 R1, dated November 8, 2004. (2) If you see evidence of an exhaust leak or cracks, replace the exhaust muffler. Group B Exhaust Mufflers (g) For exhaust mufflers specified in Group B of Table 1 of this AD, within 50 hours of operation after the effective date of this AD, do the following: (1) Perform a visual inspection around the weld of the exhaust outlet for evidence of leakage or cracks. Information on inspecting the exhaust muffler can be found in Bombardier-Rotax GmbH 914 F Service Bulletin No. SB-914-028 R1, dated November 8, 2004. (2) If you see evidence of an exhaust leak or cracks, replace the exhaust muffler. Repetitive Visual Inspections (h) Within 50 hours of operation since the last inspection, perform the actions specified in paragraphs (f)(1) through (f)(2) and (g)(1) through (g)(2) of this AD. FAA AD Differences (i) None. Alternative Methods of Compliance (AMOCs) (j) The Manager, Engine Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Related Information (k) Refer to MCAI EASA Airworthiness Directive 2006-0127, dated May 18, 2006, and Bombardier-Rotax GmbH 914 F Service Bulletin No. SB-914-028 R1, dated November 8, 2004, for related information. Contact Bombardier-Rotax GmbH, Gunskirchen, Austria; telephone: 7246-601-423; fax: 7246-601-760, or go to: http://www.rotax-aircraft-engines.com, for a copy of this service bulletin. (l) Contact Richard Woldan, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park; Burlington, MA 01803; telephone (781) 238-7136; fax (781) 238-7199, for more information about this AD. Material Incorporated by Reference (m) None. Issued in Burlington, Massachusetts, on December 11, 2008. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8-30049 Filed 12-19-08; 8:45 am] BILLING CODE 4910-13-P
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