diff --git a/docs/source/handbook/operations/in_flight.md b/docs/source/handbook/operations/in_flight.md
index 186c965..6ca5767 100644
--- a/docs/source/handbook/operations/in_flight.md
+++ b/docs/source/handbook/operations/in_flight.md
@@ -37,7 +37,7 @@ Once the [pre-flight operations](./pre_flight.md) are complete and the tests are
 
  8. If AVAPS is connected to aircraft data (which it should be during flight operations), the meteorological data from the aircraft is taken in automatically.
 
- 9. The dropsonde is now ready. Prepare the sonde for launching. First, disconnect the data cable and put the sonde in the re-conditioning-box. Click on `Continue`.
+ 9. The dropsonde is now ready. Prepare the sonde for launching. First, disconnect the data cable and put the sonde in the re-conditioning-box. Click on `Continue`. An error message might appear if the data cable is removed before clicking `Continue`. It may be solved by leaving the cable in, clicking `Continue`, then removing the cable.
 
     | ![Sonde ready](../../graphics/sonde_ready.png) |
     | :--------------------------------------------: |
diff --git a/docs/source/handbook/operations/post_flight.md b/docs/source/handbook/operations/post_flight.md
new file mode 100644
index 0000000..ba4c291
--- /dev/null
+++ b/docs/source/handbook/operations/post_flight.md
@@ -0,0 +1,6 @@
+# Post-flight Operations
+
+Data from the dropsondes launched during the flight can be transferred out of the AVAPS computer in two ways:
+
+    1. By plugging in a USB stick into the USB port on the front side of the HRDS rack.
+    2. By connecting to the AVAPS computer remotely via FTP. FileZilla can be used to drag and drop data from AVAPS in the aircraft to a local PC. The IP address and password must be known to access AVAPS remotely.