d. AN/AVS-6 (ANVIS) -
Prior to flying with ANVIS, ensure a proper fit of the HGU-56/P helmet. If the crew-
member cannot adjust the ANVIS goggles close enough to his/her eyes, a qualified
ALSE Technician (Q2) may need to heat treat the thermo-plastic liner (TPL) to provide
a proper fit.
(1) The following versions of the AN/AVS-6 ANVIS are the only systems authorized for aviation
(2) Image Intensifier Tubes - Rebuilt/refurbished image intensifier tubes are not authorized for
use. Units shall not purchase or use rebuilt image intensifier tubes from the US Marine Corps Repair Facility
at Barstow, Ca, or any other source. Any questions or concerns, contact Mr. Glen Nowak, para 16a.
(3) Newly fielded ANVIS that fail either the service upon receipt of material inspection or fail prior
to the expiration of the warranty must be reported on a Product Quality Deficiency Report (PQDR), SF 368.
The PQDR must be processed through the local CECOM avionics LAR and transmitted to CDR, CECOM.
This will ensure the unit submitting the PQDR will receive credit for that NVG.
(4) Modification of AN/AVS-602 (NSN 5855-01-138-4748) version by replacement of the piv-
ot and adjustment shelf (PAS), is not authorized. Contact Glen Nowak, para 16a for assistance.
(5) Installation of the Light Interference Filter (LIF), NSN 5855-01-379-1410, on AN/AVS-6 is
mandatory IAW procedures contained in para 2-12, and figure 2-24 of TM 11-5855-263-10 (the correct LIF
is depicted as the new LIF in this figure). AN/AVS-6 without this modification will not be used. Unit maintain-
ers shall document the installation of the new LIF on DA Form 2408-15, Historical Record. POC is Glen
Nowak, para 16a.
(6) AN/AVS-G(V)1 and AN/AVS-G(V)2 systems that are currently being manufactured under
contracts DAAB07-93-C-K005 and DAAB07-93-C-K006 (omnibus Ill) have enhancments which include
a new 25 mm eyepiece, dual lnterpupillary Distance (IPD) adjustments, increased fore/aft adjustment range,
increased tilt and improved tube performance. These (DAAB07-93-C-K005 and DAAB07-93-C-K006)
systems can be mixed in the same cockpit with older version ANVIS or ANVIS which have been upgraded
with any of these enhancements,
(7) The army is fielding omnibus IV ANVIS AN/AVS-6(V) 1 A systems (contract
DAAB07-96-C-J209). These new ANVIS have improved image intensifier tube performance and can be
readily identified by the yellowish color of the image.
(8) MX-10160 and MX-10160A image intensifier tubes shall not be mixed within any ANVIS.
AN/AVS-G(V)1 A systems that require replacement image intensifier tubes will only use MX-10160A replace-
ment tubes. MX-10160A replacement tubes will be installed in pairs in all AN/AVS-6(V) 1 and AN/AVS-602
systems requiring such maintenance.
(9) The ANVIS eyepiece tube retainer, NSN 5855-01-151-4226, material has been changed
from plastic to metal. Either material is approved.
(10)Repair of the ANVIS Mount Assembly is limited to the repair of the shielded cable, IAW TB
(11) Beginning with the next 180-day service for ANVIS, remove the existing tamper mark from
the six o'clock position on the eyepiece, and remark at the twelve o'clock position. This affects the following
publications: TM 11-5855-263-10, Table 2-2, step 13 and TM 11-5855-263-23&P, Table 2-1, PMCS, se-
quence number 8 and setting collimation, para 3-15, step 23 (optional) and para 3-16, step 10. The use of
any material other than the prescribed lacquer is prohibted.