| 99-23-19 |
Learjet |
Replace spoiler actuators as specified | 31, 31A, 35, 35A, 60 |
| 99-23-18 |
Bell |
Replace drive ring set, main rotor mast, left and right hand pylon side beams and spring as specified, revise retirement life in maintenance manual | 407 |
| 99-23-10 |
Raytheon |
Inspect specified wiring bundles and shielded wires at forward wing spar/forward ventral tank transfer/crossfeed actuator for chafing | 1000 |
| 99-23-1 |
Robinson |
Replace grip assembly | R44 |
| 99-22-13 |
Bell |
Inspect fin assembly for reduced skin thickness as specified | 407 |
| 99-22-10 |
G E Engine |
Remove from service high pressure compressor spools and disks as specified | Various models |
| 99-22-1 |
Eurocopter |
Inspect tail boom frame flange at attachment points of tail rotor drive shaft bearing with dye penetrant for cracks | EC 135, P1 &T1, |
| 99-21-8 |
Raytheon |
Replace existing aft fuselage fuel drain tube assembly as specified | 400 A |
| 99-21-5 |
Fairchild |
Supersedes 77-25-3 | Replace landing gear actuator rod ends as specified | Merlin IV, Merlin II, Metro |
| 99-21-30 |
Raytheon |
Revise AFM as specified on in flight icing conditions | MU 300 |
| 99-21-26 |
Raytheon |
Revise AFM as specified on in flight icing conditions | 400 A |
| 99-21-25 |
Eurocopter |
Daily inspect main gear box magnetic plug for metal particles, inspect main gear box oil filter for metal particles as specified | SA 315 B, 316 B, C, 319 B |
| 99-21-24 |
Eurocopter |
Superseded by 00-11-18 |
| 99-21-20 |
Dassault |
Visually inspect for interference between safety lock hooks on upper and lower engine cowls | 2000 |
| 99-21-14 |
Eurocopter |
Inspect electrical circuitry as specified, replace as directed | SA 365 |
| 99-21-1 |
Eurocopter |
Replace each connectral green electrical module not having white dot on face | SA 360C |
| 99-20-13 |
Eurocopter |
Superseded by 00-18-13 |
| 99-20-12 |
MD |
Replace oil cooler bracket | 500, 530 |
| 99-2-9 |
Agusta |
Recurringly measure radial play at both upper & lower spherical bearings; replace if bearing exceeds spec. | A109C |
| 99-2-51 |
Allison |
All ground engine starts at engine oil temps below 32 degree F (0 degree Celius) are prohibited, except as directed | AE3007A, A1, A1/1, A1/2, 3007C |
