COMPLIANCE WITH THIS - Air Force Link

12 AFI11-301V2 20 DECEMBER 2013
2.5.1.3. During inspections, completely disassemble aircrew issued oxygen masks and
aircraft installed masks per TO guidance or as directed by this instruction for specific
mask types. More frequent inspections may be required if deployed conditions dictate.
(T-2)
2.5.1.4. AFTO Form 334, Helmet and Oxygen Mask/Connector Inspection Data, or
computer-generated products will be annotated to show the date of complete disassembly
and cleaning. (T-3)
2.5.1.5. The next inspection due date will be placed on the oxygen mask in a wing
standardized position. Aircraft with pre-positioned Quick Don and Passenger Oxygen
Masks will have the due date annotated on the AFTO Form 46, Prepositioned Aircrew
Flight Equipment. Exception: Parachutists’ oxygen masks will not have due date labels
affixed to them. (T-2)
2.5.1.6. A specific area in the AFE section will be designated for storage of aircrew
oxygen masks. AFE personnel will perform postflight inspections of all masks used for
flight. MAJCOMs may direct aircrew to perform their own postflight inspection.
Aircrew will perform postflight inspections on masks when away from home station
without AFE support. (T-1)
2.5.2. Specific Aircrew Oxygen Masks Guidance:
2.5.2.1. MBU-12/P. Lead Command—AMC.
2.5.2.1.1. Mobility Air Force (MAF) may use either MBU-12/P or MBU-20/P series
masks.
2.5.2.1.2. MBU-12/P masks will be installed on all E-4B aircraft oxygen regulating
systems (142 positions) with 12 spares pre-positioned. (T-1)
2.5.2.2. MBU-20/P Series. Lead Command—ACC.
2.5.2.2.1. MBU-20/P series masks are available in MBU-20/P for pressure breathing
for G (PBG) and MBU-20A/P for non-PBG. (T-1)
2.5.2.2.2. MBU-20/P series masks and MBU-12/P masks do not mate into the
aircrew helmet bayonet receiver at the same angle. If units elect to use MBU-20/P
series mask and also are equipped with MBU-19/P Aircrew Eye/Respiratory
Protection masks (based off the MBU-12/P fit), they must modify aircrew helmet
bayonet receivers IAW TO 14P3-4-151 to allow the angle of the bayonet to be
changed as it enters the bayonet receiver. As an alternative, units may use rotatable
bayonet receivers once approved in TO 14P3-4-151. (T-1)
2.5.2.3. AWACS Mask. Lead Command—ACC.
2.5.2.4. Quick Don Folding Mask Assembly, 358 Series. Lead Command—AMC.
2.5.2.4.1. The 358-1506V-4 and 358-1506V-5 are the preferred 358-1506 Series
configurations. Units will upgrade 358-1505V, V-1, V-2 masks to V-4 and V-5
configurations as approved by aircrafts SPOs. The V-4 and V-5 configurations
provide one-piece mask and goggle for enhanced smoke and fume protection. (T-1)