| Aircraft |
Effect |
| AD 2007-10-08 Pacific Aerospace Limited Model 750XL |
Failure of the Autopilot System Computer resulting in the possibility of an out of trim condition, which may lead to loss of aircraft control. Requires disconnection of the autopilot, inspection of the pitch servo, and modification of the autopilot pitch trim circuit. Final rule eff 15 Jun |
| AD 2007-10-06 Turbomeca Arriel 2B1 Turboshaft Engines |
Two cases of flameout have been reported on Arriel 2B1 engines: One when lowering collective pitch on ground at landing and one when switching from Flight Position to idle Position on ground. Needs software version 5.02 (TU 144C) to increase the anti-flameout limit in the event of small stepper motor loss of steps (below the ``level 1 failure'' detection threshold). Final rule eff 29 May |
| 2006-NM-257-AD A300-600 & A310 |
To detect debonding of skins on the elevators, which could cause reduced structural integrity of an elevator and reduced controllability [due water ingress, debonding of the graphite fiber reinforced plastic/Tedlar film protection, bulges, debonding of the honeycomb core to the carbon fiber reinforced plastic, abnormal surface reflections, & torn-out plies]. NPRM comments by 15 Jun |
| 2007-NM-006-AD 757-200 /757-300 |
To prevent a fire near a composite drain mast and possible disruption of the electrical power system due to a lightning strike on a composite drain mast, which could result in the loss of several functions essential for safe flight. Results from a report of charred insulation blankets and burned wires around the forward gray water composite drain mast found during an inspection of the forward cargo compartment on a Model 767-300F. NPRM comments by 02 Jul |
| 2007-NM-018-AD EMB-135BJ |
In case of fuel leakage or fuel vapor release, the proximity of the drain mast of the water and waste system with the fuel tank may cause fuel ignition, leading to a possible tank explosion. NPRM comments by 15 Jun |
| AD 2007-10-09 747-400 |
To detect and correct cracking in the upper deck floor beam at station 400, which could extend and sever the floor beam. A severed floor beam could result in loss of controllability and rapid decompression. Final rule eff 01 Jun |
| 2007-CE-042-AD Cirrus SR20/ SR22 |
To correct pick-up collar support fasteners of the Cirrus Airplane Parachute System [CAPS], which could (and has) result(ed) in the premature separation of the collar. This condition, if not corrected, could result in the parachute failing to successfully deploy (CAPS failure). NPRM comments by 18 Jun |
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