Transportation Department, Federal Aviation Administration
We are revising an earlier proposed airworthiness directive (AD) for certain Airbus Model A300 B4-601, B4-603, and B4-605R airplanes; Model A300 F4-605R airplanes; Model A300 C4-605R Variant F airplanes; and Model A310-204 and -304 airplanes; powered by General Electric (GE) CF6-80C2 series engines. The NPRM proposed to require installing a shunt of the rotary selector (introducing an auto-relight function). The NPRM was prompted by reports of two single-engine flameout events during inclement weather. This action revises the NPRM by adding an additional wiring modification to a certain circuit breaker panel. We are proposing this AD to prevent a long engine restart sequence after a non-selection of continuous relight by the crew and a flameout event of both engines, which could result in reduced controllability of the airplane, especially at low altitude. Since these actions impose an additional burden over that proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.
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-2012-0636; Directorate Identifier 2012-NM-037-AD] RIN 2120-AA64 AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period. SUMMARY: We are revising an earlier proposed airworthiness directive (AD) for certain Airbus Model A300 B4-601, B4-603, and B4-605R airplanes; Model A300 F4-605R airplanes; Model A300 C4-605R Variant F airplanes; and Model A310-204 and -304 airplanes; powered by General Electric (GE) CF6-80C2 series engines. The NPRM proposed to require installing a shunt of the rotary selector (introducing an auto-relight function). The NPRM was prompted by reports of two single-engine flameout events during inclement weather. This action revises the NPRM by adding an additional wiring modification to a certain circuit breaker panel. We are proposing this AD to prevent a long engine restart sequence after a non-selection of continuous relight by the crew and a flameout event of both engines, which could result in reduced controllability of the airplane, especially at low altitude. Since these actions impose an additional burden over that ( printed page 12425) proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes. DATES: We must receive comments on this proposed AD by April 21, 2014. ADDRESSES: You may send comments by any of the f…
Other Federal Register documents from the same docket.
Citation: 79 FR 12424
