MA-1 Emergency Low Pressure O2 Bottle(C-130)

Question 0

Bottle instructions and operations

Answer 0

1. A-21 regulator is a demand pressure
2. operating range altitude is sea level to 43,000ft
3. normal operating service pressure is 375psi at 70 degrees F.
4. service at 300psi
5. if bottle goes below 25psi it must be purged
6. good for 30min, 100%
7. normal psi is 300-375

M13520.1C 5-16

Question 1

Bottle assemblies and components

Answer 1

1. check knob is in “norm” position on pre/post flight inspection
2. there are 4 knob settings- emer, 42m, 30m, norm
3. 5 sub assemblies
4. 4 quick fill ports on C-130 right by each bottle

Question 2

if the ma-1 oxygen tank drops below 25psi for longer than ___ hours it must be purged

Answer 2

2

CGTO PG-85-00-310A P. 5-5

Question 3

If the pressure of the bottle is reduced below 25 psig and not recharged within __ hours, the bottle must be ___?

Answer 3

2 hours

purged

CGTO PG-85-00-310A 5-5
MPC 352001.0 p 9

Question 4

What type regulator is used

Answer 4

A-21, demand/pressure breathing type

M13520.1C 5-15

Question 5

What mask is used with this bottle

Answer 5

1506V folding quick don mask, full-face smoke mask (P/N651-280), the MBU-10 oxygen mask.

M13520.1C 5-22 and 5-15

Question 6

What do you put on the threads of the regulator

Answer 6

Anti seize tape MIL-T-27730A, not around the first two threads nearest the opening

MPC 352001.0 P. 7 HC-130

Question 7

What do you charge the bottle to for leak checks

Answer 7

200 psi

MPC 352001.0 p 7 HC-130

Question 8

What psi do you service the bottle to

Answer 8

375 psi

MPC 352001.0 p 7 HC-130

Question 9

Remove the bottle from aircraft to approved oxygen maintenance shop IAW

Answer 9

M13520.1 series

MPC 352001.0 p 6

Question 10

What do you clean the mask(1506V) with

Answer 10

Public places towelette

MPC 352001.0 p 10

Question 11

What size is the bottle

Answer 11

280 cubic inches

M13520.1C p 5-16

Question 12

What is the weight of the bottle

Answer 12

Weight-2.1 lbs

M13520.1C p 5-16