Transportation Department, Federal Aviation Administration
We propose to supersede an existing airworthiness directive (AD) that applies to certain TCM and R-RM series reciprocating engines. The existing AD currently requires replacement of certain magnetos if they fall within the specified serial number (S/N) range, inspection of the removed magneto to verify that the stop pin is still in place, and, if the stop pin is not in place, inspection of the engine gear train, crankcase, and accessory case. Since we issued that AD, we became aware of an error in the previous AD applicability in the range of magneto S/ Ns affected, and of the need to include certain engines made by R-RM, under license of TCM. This proposed AD would correct the range of S/Ns affected, require the same replacement and inspections, and would add R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series reciprocating engines to the applicability. We are proposing this AD to correct the unsafe condition on these products.
Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Department of Transportation Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2011-0085; Directorate Identifier 2000-NE-19-AD] RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: We propose to supersede an existing airworthiness directive (AD) that applies to certain TCM and R-RM series reciprocating engines. The existing AD currently requires replacement of certain magnetos if they fall within the specified serial number (S/N) range, inspection of the removed magneto to verify that the stop pin is still in place, and, if the stop pin is not in place, inspection of the engine gear train, crankcase, and accessory case. Since we issued that AD, we became aware of an error in the previous AD applicability in the range of magneto S/Ns affected, and of the need to include certain engines made by R-RM, under license of TCM. This proposed AD would correct the range of S/Ns affected, require the same replacement and inspections, and would add R-RM C-125, C-145, O-300, IO-360, TSIO-360, and LTSIO-520-AE series reciprocating engines to the applicability. We are proposing this AD to correct the unsafe condition on these products. DATES: We must receive comments on this proposed AD by August 12, 2011. ( printed page 37683) ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45 , by any of the following methods: Federal eRulemaking Portal: Go to http://www.regulations.gov . F…
Other Federal Register documents from the same docket.
Citation: 76 FR 37682
