| AD number | Document | Issue number | Effective date | Status |
|---|---|---|---|---|
| 1 | Roto-Master (Rajay Industries, Inc.) Turbochargers - Inspection and Replacement | 3/1983 | Active | |
| 2 | Kelly Aerospace Turbochargers | 7/2008 | Active | |
| 2010-07-08 | Rebuilt Kelly Aerospace Turbochargers | Active | ||
| 2011-13-03 | Hartzell Engine Technologies Turbochargers | Active | ||
| 2013-21-02 | Hartzell Turbocharger Turbine Wheel Removal | Active | ||
| 2012-10-52 | Hartzell Engine Technologies (HET) Turbochargers - Insufficient Oil Flow to the Bearings | Active | ||
| 2018-02-04 | FAA PMA Aerospace Welding Minneapolis Mufflers P/N A1754001-23 and A1754001-25 - Inspection / Replacement | Urgent | ||
| 2023-09-09 correction | Spot-Welded, Multi-segment Exhaust v-band Coupling - Life Limit (Applicable to Aircraft / Rotorcraft for which the FAA is the State of Design) | Active | ||
| 2024-0221 | Exhaust - Engine / Turbocharger Exhaust System / Components - Inspection (Applicable to Aircraft / Rotorcraft for which EASA is the State of Design) | Active |