BY ORDER OF THE SECRETARY OF THE AIR FORCE AIR FORCE ...

AFMAN 11-217V1 3 JANUARY 2005 331
14.10. Simultaneous Offset Instrument Approaches (SOIA).
14.10.1. A simultaneous approach to a set of parallel runways using a straight-in ILS
approach to one runway and an offset LDA with glide slope instrument approach to the
other runway is called SOIA. The parallel runway centerlines are separated by less than
3,000 feet. Controllers monitor the approaches with a PRM system using high update
radar and high-resolution ATC radar displays. The procedures and system requirements
for SOIA are identical with those used for simultaneous close parallel ILS/PRM
approaches until the MAP--at which time visual separation between aircraft on the
adjacent approach courses must be applied. An understanding of the previous section,
paragraph 14.9 is essential to conduct SOIA operations.
14.10.1.1. When flying appropriately equipped aircraft and trained as outlined in
AFI 11-202 Volume 3, General Flight Rules and MAJCOM directives, USAF
aircrews are authorized to fly SOIA approaches.
14.10.2. In SOIA, the approach course separation (instead of the runway separation)
meets established approach criteria. A visual segment of the LDA approach is