| 12-21-51 |
Eurocopter |
Superseded by 12-25-4 |
| 12-21-5 |
Beechcraft |
Incorrect guage wiring | G58 |
| 12-21-11 |
Bombardier |
Oxygen cylinder | Challenger 601-3A, 3R |
| 12-20-2 |
Eurocopter |
Non-conforming air filter elements | SA-365N1, AS-365N2, AS-365N3 |
| 12-2-6 |
Honeywell |
AD to prevent uncontained failure of the first stage turbine disk | TPE-331-10 |
| 12-2-51 |
Bell |
Reduced life limit of 3,600hr TIS to 1,400hr TIS as specified | 206L, L1, L3, L4 |
| 12-2-2 |
Cessna |
Supersedes 08-3-2 | Inspect the fuel return line assembly for chafing and proceed as specified | 172R & S |
| 12-2-18 |
Dassault |
Prompted by reports of cracking of the flap tracks | Falcon 50 |
| 12-2-13 |
Eurocopter |
AD defines the unsafe condition as cracks on the tailboom/Fenestron | EC130B4 |
| 12-2-10 |
CPAC |
Supersedes 11-7-13 | Inspection of elevator spars to detect cracks | Commander 112,B,TC,TCA; 114,A,B,TC |
| 12-19-1 |
Lycoming |
Crankshaft failure prevention | Various models |
| 12-18-9 |
Bell |
Unsafe condition as an incorrect torque value of the tailboom attachment bolt | Bell 407 |
| 12-18-8 |
Eurocopter |
Unsafe condition from jammin of one of the fuel shut-off control levers | SA330F,G,J, AS332C,L,L1,L2 |
| 12-18-6 |
Piaggio |
Unsafe condition on an aviation product | P180 |
| 12-18-4 |
Tecnam |
Replace the landing gear emergency accumulator as specified | P2006T |
| 12-18-18 |
Turbomeca |
AD to prevent rupture of a gas generator turbine blade | Arriel 2B1, 2B1, 2S2, 2C2 |
| 12-18-16 |
Cessna |
Replace aux power unit GCU | Citation X |
| 12-18-1 |
M7 Aerospace |
Fatigue cracking in the left and right forward and aft spar wing-to-fuselage attach fittings | SA226 and SA227 series |
| 12-17-9 |
Eurocopter |
Reduced service life of the rotating star | SA341G |
| 12-17-8 |
Bell |
Crack in a yoke | 212 |
