Description
Support Equipment
| Name | Remark |
| IAE 6F10078 MI bag | Engine Build up Unit (EBU) |
| IAE 6F10287 Storage cover | Demountable Power Plant (QEC) |
| IAE 6F18903 Storage cover | (as IAE 6F10287 except reduced size, to suit power plant without nose cowl) |
| IAE 6R19562 MI bag | Demountable Power Plant (QEC) |
| IAE 6R19563 MI bag | Engine Build up Unit (EBU) |
| IAE 6R19564 VMI bag | Demountable Power Plant (QEC) |
| IAE 6R19565 MI bag | Engine Build up Unit (EBU) |
| IAE 6P16604 VMI bag | Demountable Power Plant (QEC) |
| IAE 6P16605 VMI bag | Engine Build up Unit (EBU) |
Consumables, Materials and Expendables
| Name |
| CoMat 02-075 DESICCANT (DEHYDRATING AGENT) |
| CoMat 02-076 HUMIDITY INDICATOR CARD |
| CoMat 12-031 FRENCH CHALK |
| CoMat 12-032 DETERGENT |
Procedure
1. SUBTASK 72-00-00-210-054 Examine the Vapor Moisture Impervious (VMI) Bags and Storage Cover
Examine IAE 6F10078 MI bag 1 off, IAE 6F10287 Storage cover 1 off, or IAE 6F18903 Storage cover 1 off, IAE 6R19562 MI bag 1 off, IAE 6R19563 MI bag 1 off, IAE 6R19564 VMI bag 1 off, IAE 6R19565 MI bag 1 off.
If the bag/cover is dirty or contains fluid, clean the bag/cover with CoMat 12-032 DETERGENT. Make sure the cover is dry.
Cracks to the interlock closures – Reject.
If the cover is torn:
Less than 3.00 in. (76.6 mm) in length refer to Step 2.
More than 3.00 in. (76.6 mm) then reject the bag/cover.
If the cover is pierced:
Less than 1.00 in. (25.4 mm) in diameter refer to Step 2.
NOTE
There is no limit to the number of patches which can be applied, but no two patches can go over each other.
More than 1.00 in. (25.4 mm) in diameter then reject the bag/cover.
2. SUBTASK 72-00-00-350-051 Repair the Vapor Moisture Impervious (VMI) Bag and Storage Cover (If Necessary)
NOTE
The repair kit is included as part of the bag/cover.
Repair to areas not adjacent to the seams:
Use materials contained in the repair kit, cut two patches that overlap the damaged area by 1.50 in. (38.1 mm) circular.
Clean the damaged area on the internal side and the external side of the bag/cover and one side of the patches with CoMat 12-032 DETERGENT. Permit the bag/cover and the patches to dry.
Apply a layer of adhesive to the clean side of the patches and the mating area on the bag/cover. Permit 15 minutes to dry.
Put one patch on the external side of the damaged bag/cover and the second patch on the internal side of the damaged bag/cover. Push the two patches together.
Apply CoMat 12-031 FRENCH CHALK to the internal and external patches.
Repair to the area adjacent to the seams:
Use materials contained in the repair kit. Cut part of the raised seam on the internal side of the bag/cover.
Cut two patches that overlap the damaged area by 1.50 in. (38.1 mm) circular.
Cut two slots in the external patch to accept the raised seam that is not cut away.
Do Step 2.A.(3), Step 2.A.(4) and Step 2.A.(5).
NOTE
If the repair kit given is not available a temporary repair is permitted, but this repair, must be removed and replaced when the correct repair kit is available.
Temporary repair the bag/cover.
Clean both external and internal areas to be repaired and let drying.
Build up the damaged internal and external areas with strips of adhesive tape 2.00 in. (50.8 mm).
3. SUBTASK 72-00-00-550-053 Fit the VMI Bag or Storage Cover to Transportation Stand and put Desiccant into the Bag/Cover
NOTE
If the bag/cover is installed, do not do steps A, B, C, D, E, F and H.
The two types of covers are installed on the transportation stand in the same position.
The type of bag/cover to be installed.
Engine build-up unit (EBU) and spareable engine have IAE 6F10078 MI bag 1 off or IAE 6R19563 MI bag 1 off or IAE 6R19565 MI bag 1 off installed.
Demountable power plant and quick engine change unit (QEC) have IAE 6F10287 Storage cover 1 off or IAE 6R19562 MI bag 1 off or IAE 6R19564 VMI bag 1 off installed.
Do TASK 71-00-00-560-001 (REMOVAL-001), move the engine from the transportation stand to the support pedestals.
Make sure the bag/cover is clean.
Remove the front and rear support brackets.
Remove the eight bolts and the eight washers that attach the front support brackets to the transportation stand.
Remove the front support brackets and put them on a suitable surface.
Remove the eight nuts and the eight bolts that attach the rear support brackets to the transportation stand.
Remove the rear support brackets and put them on a suitable surface.
Position the bag/cover on the transportation stand. Align the holes in the bag/cover with the holes on the transportation stand.
Install the front and rear support brackets.
Attach the front support brackets to the front support struts with the eight bolts and the eight washers.
Tighten the bolts to safety.
Attach the rear support brackets to the rear support struts with the eight bolts and the eight nuts.
Tighten the bolts and the nuts to safety.
Make sure the bag/cover is clean.
Do TASK 71-00-00-560-002, move the engine from the support pedestals to the transportation stand.
CAUTION
WHEN THE DESICCANT CONTAINERS ARE OPENED, IT IS IMPORTANT THAT THE DESICCANT IS PUT INTO THE STORAGE COVER AS QUICKLY AS POSSIBLE AND THE COVER IS CLOSED, IN ORDER TO MINIMISE EXPOSURE TO THE ATMOSPERE.
Put CoMat 02-076 HUMIDITY INDICATOR CARD in the pocket supplied on the bag/cover.
Put the necessary quantity of CoMat 02-075 DESICCANT (DEHYDRATING AGENT) for the condition of storage. The quantity of desiccant is shown in step K.
NOTE
Ensure that the desiccant does not touch the power plant.
The quantities of desiccant quoted in the tables below are calculated based on the inspection frequency described in SUBTASK 72-00-00-230-052. Alternative quantities of desiccant are permitted subject to an alternative humidity indicator inspection plan. Desiccant must be replaced if humidity indicators show unsafe.
Quantity of desiccant necessary for the engine storage.
CAUTION
DO NOT PLACE DESICCANT IN DIRECT CONTACT WITH THE ENGINE BECAUSE THIS CAN CAUSE CORROSION.
NOTE
In the two tables that follow arid conditions are not more than 40 percent (monthly average) of humidity. Temperate conditions are more than the humidity of 40 percent and not more than 80 percent (monthly average). Tropical is more than 80 percent humidity (monthly average).
Position the desiccant packages equally along the length of the engine.
IAE 6F10287 Storage cover 1 off, IAE 6F18903 Storage cover 1 off, IAE 6R19562 MI bag 1 off, IAE 6R19564 VMI bag 1 off:
|
STORAGE PERIOD |
CONDITIONS |
||||
|---|---|---|---|---|---|
|
(MONTHS) |
ARID/TEMPERATE |
TROPICAL |
|||
|
3 |
24 lb (11 kg) |
89 lb (40 kg) |
|||
|
6 |
50 lb (23 kg) |
181 lb (82 kg) |
|||
|
9 |
75 lb (34 kg) |
270 lb (123 kg) |
|||
|
12 |
99 lb (45 kg) |
360 lb (164 kg) |
|||
NOTEAt the end of each storage period the used desiccant is to be removed. If the engine is to be stored for a longer period the new specified quantity of desiccant is to be put in the bag/cover.
|
|||||
IAE 6F10078 MI bag 1 off , IAE 6R19563 MI bag 1 off, IAE 6R19565 MI bag 1 off, IAE 6P16604 VMI bag 1 off, IAE 6P16605 VMI bag 1 off:
|
STORAGE PERIOD |
CONDITIONS |
||||
|---|---|---|---|---|---|
|
(MONTHS) |
ARID/TEMPERATE |
TROPICAL |
|||
|
3 |
17 lb (8 kg) |
61 lb (28 kg) |
|||
|
6 |
33 lb (15 kg) |
120 lb (54 kg) |
|||
|
9 |
50 lb (23 kg) |
181 lb (82 kg) |
|||
|
12 |
65 lb (30 kg) |
240 lb (109 kg) |
|||
NOTEAt the end of each storage period the used desiccant is to be removed. If the engine is to be stored for a longer period the new specified quantity of desiccant is to be put in the bag/cover.
|
|||||
Carefully position the top half of the bag/cover over the engine. Seal the bag/cover with the lock slider that is supplied with the cover.
Examine the bag/cover:
Torn or pierced refer to Step 1.
Install the front and rear freight guards to the transportations stand.
