AIR app crashes on iOS after returning from CameraUI photo capture

sinious, I'm running code in a rather large application and I'm not sure (professionally) what I'm allowed to share. I can *probably* document with some pseudocode and small snippets though:

1. Declare an instance of CameraUI

var cam:CameraUI = new CameraUI();

cam.addEventListener(Event.CANCEL, _captureMobileCancel, false, 0, true);

cam.addEventListener(MediaEvent.COMPLETE, _captureMobileComplete, false, 0, true);

cam.launch(MediaType.IMAGE);

2. In the complete handler, I acquire the image using a MediaPromise

var promise:MediaPromise = e.data as MediaPromise;

var bytes:ByteArray = new ByteArray();

var input:IDataInput = promise.open();

input.readBytes(bytes, bytes.length, input.bytesAvailable); 

var loader:Loader = new Loader();

loader.contentLoaderInfo.addEventListener(Event.COMPLETE, _imageLoaded, false, 0, true);

loader.loadBytes(bytes);

3. Once the image has finished loading, I drop it into a Sprite, perform some transformations, and then draw the cropped contents of the Sprite to a new Bitmap. This is purely an aesthetic requirement baesd on the design and purpose of the app I'm developing.

4. I take the new Bitmap I've just generated, convert it to a JPG, and write it manually to the file system. I write it manually because I need direct access to each image for display in multiple locations throughout the application, so this isn't a scenario where I can just ask the user to browse the camera roll to select the image.

Anyway, after taking a few photos (the number varies), the app exits to the desktop.

Is this helpful enough?

EDIT: I should also clarify that I have no issues interacting with images acquired in this manner. I'm able to successfully read and write them to the iPhone's internal storage, upload and view them via a webserver, and interact with and display them in the application.