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Monday, April 16, 2007

Significant Regulatory Activity

Flight operations below flight level 200 within the territory and airspace of Somalia are prohibited by all: (1) U.S. air carriers; (2) U.S. commercial operators; (3) operators of U.S. registered aircraft except when such operators are foreign air carriers; and (4) persons exercising privileges of a U.S. airman certificate except if the flight is on behalf of a foreign air carrier. eff March 30 [72 FR 16710]
Aircraft Effect
AD 2007-07-08 A300-B2 & B4 Results from reports indicating that a Directional Pilot Valve was assembled incorrectly; to prevent uncommanded in-flight deployment of a thrust reverser. Final rule eff May 10
AD 2007-07-14 EMB-135BJ Addresses a possibility of sparks due to chafing between the harnesses of the forward and aft auxiliary fuel tanks, between certain harnesses attached to the aircraft structure, or between certain harnesses attached to certain mechanical components ......to prevent a potential ignition source inside a fuel tank. Final rule eff May 10
AD 2007-07-13 Gulfstream 200 & LP Galaxy Avionics and electrical wire harnesses routed behind the Primary Flight Displays (PFD) tray at the rear of the instrument panel have been found to be chafing on the PFD tray. That could result in electrical arcing, shorting and subsequent loss of systems essential for safe flight. Final rule eff Apr 20
2006-NM-170-AD A318 thru A321 Results from a report of an incident where an airplane landed with the NLG turned 90 degrees from centerline, and from additional reports of NLG upper support anti-rotation lugs rupturing in service. NPRM comments by May 07
2006-NM-267-AD ERJ170 & 190 some "cautions" issued by the Flight Guidance Control System (FGCS) are not displayed on aircraft equipped with [certain] EPIC software load[s]. Therefore, following a possible failure on one FGCS channel during a given flight, such a failure condition will remain undetected. If another failure occurs on the second FGCS channel, the result may be a command hardover in roll, pitch or yaw by the autopilot. NPRM comments by May 07
2006-NM-287-AD Dassault Falcon 50 Interferences in the galley coffee-maker installation can, by chafing and degrading the wire insulation, generate short circuits between the wire and aircraft ground through the composite cabinet structure, without activation of the Circuit Breaker. Hot spots may then be created and generate thick smoke. NPRM comments by May 09

 

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