Helium leak checked 2a3 window after installing using remote line:

- There was a leak found between the target and entrance module at the target pit, rate of 9E-6 atm-cc/sec.

- One test performed with the remote helium line to the window. There was a response but the leak detector was located above the window access channel, drift cannot be ruled out.

- 3 more tests performed with vacuum group, with leak detector relocated farther away from ITE and isolated with plastic. 2 tests using remote line had no response. One test done with a wand through 2a3 wall penetration had a response of 3.2E-9 atm-cc/sec (not using remote line).

Vacuum group (D. Yosifov) comments that due to the much larger leak at the top of the tank he cannot say with confidence the response seen is a leak at the window (due to leak at top) but if there is, a tolerable leak rate.