| 523-0798846 | 137A-2 ADF Loop Antenna, Provisioning of Correctors | SIL | 137A-2 SIL 139-57 | 1/0 | 1957-11-25 |
| 520-5409000 | 456A-1 Selective Calling System | IB | | 2/0 | 1958-03-15 |
| 523-0755062 | 444A-1 Radar Gyro Coupler | IB | | 2/0 | 1958-09-15 |
| 520-5657000 | AP-101E/102 Automatic Flight Control System with Steering Computer 562A-6 | OG | | 2/0 | 1959-02-01 |