SAFETY PRECAUTIONS FOR O2 BOTTLES

Question 1

List Safety Precautions for O2 Bottles

Answer 1

1. Handle O2 with care
2. A minimum of 500 PSI is required to begin administration of O2.
3. You should discontinue the use at 200 PSI (to help prevent corrosion of the bottle)
4. The bottle is considered empty at 50 PSI.
5. Never allow O2 that is flowing under pressure (cabin) to come into contact with oil, grease, dust or lint (it can cause a burning sensation)

Question 2

What is the difference between Medical and Aviation Oxygen?

Answer 2

Aviation O2 is 100% pure and very nearly 100% dry. Medical O2 has higher moisture which could freeze in higher altitudes.

Question 3

What are the PSI levels for the following?
Minimum Start
Discontinue Use
Bottle Empty
Full Capacity
FA Check

Answer 3

500 PSI
200 PSI
50 PSI
2000 PSI
1400 PSI

Question 4

What is the definition for Supplemental Oxygen?

Answer 4

Supplemental O2 (supplements the air) used in a depressurization when the cabin altitude is above 10.000 FT. Flow Rate 2L per minute.

Question 5

What is the definition of the Therapeutic Oxygen?

Answer 5

First Aid Treatment for Pax particularly (but not limited to) Hypoxia at a normal cabin altitude. Flow rate 4 L per minute.

Question 6

How long will the Crew Supplemental bottle last for?

Answer 6

1 hour - 60 Minutes

Question 7

How long will the Supplemental Pax bottle last with 1 and 2 masks attached?

Answer 7

1 mask attached will last 100 minutes
2 masks attached will last 50 minutes

Question 8

Where is the Therapeutic Oxygen bottle located?

Answer 8

At Galley Emergency Equipament Cupboard

Question 9

What are the features of the Therapeutic Oxygen bottle?

Answer 9

1. On and off knob
2. 2000 PSI capacity
3. Pressure indicator gauge
4. Nylon carrying strap
5. 1 outlet of 4 L per minute with mask attached
6. 1 outlet of 2 L per minute with mask attached - UNUSABLE
7. Therapeutic Label

Question 10

What is the Pre-Flight Check of the Therapeutic Oxygen bottle?

Answer 10

Stowed correctly at GEEC
1400 PSI Minimum
One mask attached

Question 11

How do you administer Therapeutic Oxygen?

Answer 11

1. Inform PIC that you will need to administer O2 to the pax (mention seat) - depending on the urgency you can ask a pax to talk to PIC while you assist the pax needing O2
2. Locate/ Go to GEEC and check O2 levels for sufficient O2 prior to administering
3. Clean your hands and ensure pax nose and mouth areas are clear of grease and make up
4. Unfold rebreather bag and check for creases
5. Open the O2 ON bottle knob so the O2 can start flowing and ensure it is by checking the following signs:
   * The green portion of your rebreather bag will inflate (if fitted)
   *The rebreather bag will inflate slightly
   *You will hear a hissing noise
   *Drop in pressure in the pressure indicator gauge
6. Secure mask on Pax covering mouth and nose and adjust
7. Remain with pax and offer reassurance
8. Frequently check O2 flow by observing the drop in pressure in the indicator gauge
9. When finished administering O2, REMOVE MASK and then TURN OFF O2
10. Discard used mask, reattach the spare one and restow bottle
11. Notify PIC of:
    *Pax condition
    *If medical assistance is required
    *The need to replace the spare mask
    *PSI level on pressure indicator gauge

Question 12

What type of Oxygen bottle would you use on an infant?

Answer 12

Therapeutic

Question 13

How do you administer O2 on an Infant?

Answer 13

Enrich the air, NEVER on the infant’s face.

Question 14

What does the PIC need to know after the Therapeutic O2 has been administered?

Answer 14

1. Pax condition and
2. if medical attention is required on the ground
3. PSI level on the bottle
4. Notify engineering so they can replace spare mask

Question 15

How many Pax Sup bottles are there?

Answer 15

3 Bottles

Question 16

Where are the Pax Sup Bottles Located?

Answer 16

1 in the Galley Emergency Equipament Cupboard and 2 in the Rear O2 Stowage Bin

Question 17

What are the features on the Pax Sup bottles?

Answer 17

1. On and Off Knob
2. Pressure Indicator Gauge
3. 2000 PSI Capacity
4. Nylon Strap
5. 2 outlets (at 2L per minute) with masks attached
6. 1 outlet at 4L per minute labelled ‘first aid’ - UNUSABLE

Question 18

Pre-Flight Check for O2 Pax Sup bottle?

Answer 18

1x in the GEEC and 2x in the ROSB
2x masks attached
200L bottle - Indicator NO lower than the last white line mark. IF NOT, inform Capt.

Question 19

Where is the Crew Sup Bottle located?

Answer 19

In the GEEC.

Question 20

When would the Crew use the Sup O2?

Answer 20

At cabin altitudes above 10.000 FT

Question 21

Features of Crew Sup O2?

Answer 21

1. On and Off Knob
2. Pressure Indicator gauge
3. Nylon carrying Strap
4. 1x outlet at 2L per minute attached
5. Capacity 2000 PSI
6. A Regulator Switch attached to outlet - UNUSABLE

Question 22

Pre-Flight Check of Crew Sup Bottle?

Answer 22

Stowed at the GEEC with 1x mask attached
1400 PSI. IF NOT, notify PIC and add to Cabin Log.

Question 23

How would FA use the Crew Sup O2?

Answer 23

1. Locate and ensure O2 levels
2. Clean hands and face for excess grease
3. Unfold the rebreather bag
4. Free of kinks on tube
5. Turn on O2 check flow indications
6. Put it over mouth and nose
7. Check pressure and drop in pressure as indicated on gauge
8. When done, remove mask then TURN OFF o2 bottle
9. Discard and replace mask with spare
10. Inform PIC to order new one from Engineering.

Question 24

What are the 4 signs that the O2 is flowing correctly?

Answer 24

1. Green portion of rebreather bag will inflate- if fitted
2. Hissing sound
3. Rebreather will inflate slightly
4. Drop in pressure as per indicator gauge

Question 25

What does the FA do with the oxygen masks once they have been used?

Answer 25

Discard and reattach a spare one. Inform PIC to get a new spare and add to cabin log.

Question 26

What is Oxygen Paradox?

Answer 26

It’s when pax suffering from SEVERE Hypoxia when been administered with O2 feel worse before feeling better. It normally lasts 15 SECONDS. DO NOT REMOVE OXYGEN. Encourage deep breathing and reassure pax symptoms will get better soon.