| 2007-17-17 | Learjet Model 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, and 55C Airplanes, and Model… | Oct 2, 2007 | Airframe (31A)Serial numbers per Table 1 of this AD: Bombardier Service Bulletins 31-54-2 Rev 1 and 45-54-3 Rev 2; Learjet Service Bulletins 35/36-54-3 and 55-54-3 |
| 2005-13-36 | Learjet Model 23, 24, 24A, 24B, 24B-A, 24C, 24D, 24D-A, 24E, 24F, 24F-A, 25, 25A, 25B… | Aug 9, 2005 | Airframe (31A)Serial numbers per Bombardier Alert Service Bulletins A23/24/25-27-17, A28/29-27-24, A31-27-25, A35/36-27-42 (Table 1 of this AD) |
| 2001-07-11 | Learjet Model 23, 24, 25, 28, 29, 31, 35, 36, and 55 Series Airplanes | May 1, 2001 | Airframe (31A) |
| 99-16-03 | Learjet Model 23, 24, 25, 28, 29, 31, 55, and 60 Series Airplanes | Sep 7, 1999 | Airframe (31A)Serial numbers per Learjet Service Bulletins SB 23/24/25-30-3, SB 28/29-30-3, SB 31-30-05, SB 55-30-3, and SB 60-30-4, dated October 27, 1998 |
| 95-21-03 | Learjet Model 31A and 60 Airplanes | Oct 26, 1995 | Airframe (31A)Certain serial numbers: 31A 31-093–31-108; 60 60-034–60-061 |