| 90-3-19 |
Fairchild |
Revised 8/90 | modify elec sys | SA226-T,-AT,-TC; SA227-TT,-AT,-AC |
| 90-3-10 |
Bell |
Replace specified tail rotor grip if necessary | 204B, 205A, 205A-1 |
| 90-26-11 |
Bell Heli |
Repetitively inspect main rotor drag brace assembly for crack | 212 |
| 90-25-6 |
Cessna |
Replace coax connectors on DME antenna cable; verify proper DME antenna bonding & repair if necessary | 650 series |
| 90-25-17 |
Aerospatiale |
Inspect/replace damaged oil cooler inlet-outlet elbow mount bases | TB9,10, 20, 21 |
| 90-24-7 |
MDHC |
Inspect main rotor transmission cover attachment bolts & retaining nuts; replace with acceptable bolts | 369D, E, F/FF |
| 90-24-6 |
Garrett Eng |
Test & replace, if necessary, thermocouple lead assemblies on TFE731- turbofans |
| 90-24-3 |
Fairchild |
Inspect rudder trim tab rod assemblies; replace corroded rod | SA26, 226, 227 |
| 90-23-8 |
MBB Heli |
Install continuous ignition system for operation in snow | B0105C, B0105S series |
| 90-23-3 |
Aerospatiale |
Install protective cover on each main rotor servo control | AS 350 & 355 series |
| 90-23-18 |
Piper |
Suspended |
| 90-23-17 |
BAe |
Inspect rear pressure bulkhead; repair if chafing w/air cond. duct | DH125-1A |
| 90-23-1 |
BAe |
Superseded by 91-7-12 |
| 90-21-8 |
Cessna |
Modify/install left fuel bladder; move vent behind left lift strut; placard unmodified planes | 1953-'56 C-180 |
| 90-21-3 |
Bell Heli |
Replace defective tail rotor blade asmbly | BHT1 Mdl 206A,-1; 206B,-1; 206L,-1,-3 |
| 90-21-22 |
BAe |
Lubricate right & left MLG upper & lower torque link pivots | 125-800A series |
| 90-21-18 |
Gulfstream |
Inspect/install sealant at radome-fuselage mating structure; inspect radome & aerodynamic seal, repair/replace, if necessary | G-IV |
| 90-21-1 |
Garrett Eng |
Superseded by 91-4-2 |
| 90-20-5 |
Christen |
Inspect welds on sides of front seat back; install reinforcement if needed | Husky |
| 90-20-4 |
Melex |
Replace push-pull cables in eng & prop governor | M18 & M18A |
