| 523-0782308 | CIC 1167005-142 Designated "Mod B", Detailing Changes To The Power Supply Circuit | SB | 1167005-142-23-02 | 1/0 | 1991-06-15 |
| 523-0782339 | IOEU-MOD N - New J1, J2 PWA | SB | 1167007-141-23-15 | 1/2 | 2012-01-30 |
| 523-0784589 | Seat Electronics Box Mod N - Fan Addition | SB | 1156506-151-23-08 | 1/3 | 2005-10-19 |
| 523-0784702 | IOEU - MOD P - Replace One Piece Black Oxide Mechanisms With Two Piece Latch Mechanisms | SB | 1167007-141-23-16 | 1/2 | 2001-04-19 |
| 523-0791492 | Improve Pushbutton Operation | SB | 614E-20R SB 3 | 1/1 | 1988-05-02 |
| | 523-0792646 | Increase Brightness Range Of Digital Distance Display | SB | 331A-6R SB 1 | 1/0 | 1977-06-15 |
| | 523-0792879 | Navigation - WMA-702X - Reduce Nuisance Antenna Fault Annunciations During Dual System Changeover | SB | WMA-702X SB 16 | 1/1 | 2019-05-07 |
| | 523-0796309 | Improve M1 Meter Indications | SB | 618M-1D SB 21 | 1/0 | 1966-11-03 |
| | 523-0797640 | CONVERT WRT-701X UNITS (622-5132-XXX) TO 622-5132-6XX WXR/FORWARD-LOOKING WINDSHEAR UNITS | SB | WRT-701X SB M | 1/1 | 1998-05-07 |
| 523-0801457 | Improve Intermodulation Performace Conversion to 51RV-5,51RV-5B,51RV-5D | SB | 51RV-4B SB M | 1/0 | 1995-04-12 |