| 83-7-51 |
Canadair |
Revised 6/84 | dye check flap vane support beams each 50 hrs | CL-600, -601 |
| 83-7-5 |
Aerospatiale |
Revised 9/85 | magnetic check main rotor mast each 300 hrs | AS350, 355 |
| 83-7-22 |
Partenavia |
Revised 8/83 | replace flap selector switch | P-68, B, C, -TC |
| 83-7-2 |
Melex |
Reinforce elevator & rudder counterweights | M18 |
| 83-7-19 |
Melex |
Replace aileron push rod connectors | M18 (SN 1Z005-11 thru -14) |
| 83-7-17 |
Partenavia |
Install fuel selector stop tube kit | P68B,C (SN 123 thru 241) |
| 83-7-14 |
Beech |
Inspect windows | F90 (SN -2 thru -7, -103 thru -146), 200 (SN -2 thru -525, -789 thru -852), 200C (SN -18 thru -36), B200 (SN -793,-829,-854 thru -868, -870), B200C (SN -37) |
| 83-7-11 |
Melex |
Modify brake levers | M18 (all thru SN 1Z009-30) |
| 83-6-9 |
Melex |
Perform various modifications | PZL M18 (thru SN 1Z005-14) |
| 83-6-7 |
Melex |
Magnify check rudder each 50 hrs | PZL M18 (all thru 1Z007-25) |
| 83-5-7 |
Partenavia |
Replace oil cooler elbow | P68,B (most thru 182) |
| 83-5-4 |
Piper |
Supersedes 80-11-9 | replace landing gear bolts | PA-38-112 (all thru SN-820110) |
| 83-4-4 |
Enstrom |
Supersedes 74-5-3 | replace ring gear carriers of main rotor shaft | F-28A,280 |
| 83-4-3 |
Embraer |
Prevent control wheel failure | EMB-110P1, -110P2 |
| 83-3-51 |
Avco |
Replace turbine rotors | ALF 502 |
| 83-3-4 |
Bell |
Inspect float inflation valve assembly | 206L, 206L-1 |
| 83-3-2 |
Allison |
Revised 2/84 | supersedes 77-18-3 | inspect & ultimately retire specified engs equipped w/3rd-stage turbine wheels | B17, C20 series |
| 83-26-5 |
DeHavilland |
Superseded by 95-22-7 |
| 83-26-3 |
Goodrich |
Replace various tires w/certain SNs | not limited to Learjets, Fairchild SA226-TC |
| 83-25-2 |
Hiller |
Supersedes 80-18-1 | check rotor blade rood doublers | UH12 series |
