Replicated using this environment:
iPad Version: 8.1 (12B410)
Adobe flash Pro: CS6 (12.0.2.529)
Adobe Air SDK: 15.0
FLA: blank white no AS no stage elements
Applied iOS ad-hoc distribution Cert and provisioning files to publish settings and successfully published:
Application installs successfully using:
adt -installApp -platform ios -package PATH_TO.ipa
clicked installed app on device and only got a black screen
same exact setup and steps on iOS 7 gave us a successful test with our test app launch