A federal Appeals Court Friday overturned the Federal Aviation Administration's approval of the Cape Wind project, ordering the agency to reconsider whether 130 440-foot-tall turbines in Nantucket Sound would put air travelers in jeopardy. On several legal matters, the Appeals Court for the District of Columbia sided with the town of Barnstable, Mass., and the Alliance to Protect Nantucket Sound â¿¿and against the FAA and Cape Wind Associates LLC, which wants to build the turbines. The plaintiffs had argued that the FAA violated its own rule-making process in granting what are called "No Hazard" approvals for each of the proposed turbines. The FAA countered that the petitioners lacked standing. The court sided with the plaintiffs on both matters. The plaintiffs did have standing to bring the suit, the court ruled. And the court found that the FAA "misread its own regulations." The ruling focused in part on whether the FAA ignored its own regulations governing how close to structures planes should fly. In the case of Nantucket Sound, the court noted, flying below cloud cover during bad weather is of special significance. "The FAA may ultimately find the risk of these dangers to be modest," the court wrote, "but we can not meaningfully review any such prediction because the FAA cut the process short in reliance on a misreading of its handbook and thus, as far as we can tell, never calculated the risk in the first place." Referring to another point in the case, the Appeals Court wrote: "In a curious display of agency modesty, the FAA dismisses its influence with Interior. It emphasizes that Interior reached its decision only after years of deliberation that involved consultation with over a dozen agencies, and that Interior decided to move forward with the project only â¿¿[a]fter careful review of the project need, the various alternatives considered, the concerns expressed through years of public comment, as well as the many agency consultations that were conducted and the potential impact to Nantucket Sound and environs therein."