DMC:V2500-00-70-33-76-00A-081A-DIssue No:001.00Issue Date:2013-03-20
Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 70-33-76-100-501 Make-Up Of The Solutions For The Removal Of IAE 70-38-10 (PWA 73), IAE 70-38-29 (PWA 273) And IAE 72-38-23 (PWA 275) From PWA 1447 And 1455 Materials
NOTE
To identify the consumable materials, refer to the PCI.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Polyethylene or polypropylene tank | LOCAL | Polyethylene or polypropylene tank |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE | LOCAL | CoMat 01-025 | ||
| CoMat 01-197 PHOSPHORIC ACID | LOCAL | CoMat 01-197 | ||
| CoMat 01-200 ACID ADDITION AGENT | 71410 | CoMat 01-200 | ||
| CoMat 03-135 DRY ACID SALT | 70228 | CoMat 03-135 |
Spares
NONESafety Requirements
WARNING
IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.
WARNING
EVERY POSSIBLE CARE MUST BE TAKEN TO AVOID THE SOLUTION COMING INTO CONTACT WITH THE EYES OR BARE SKIN. PROTECTIVE CLOTHING INCLUDING RUBBER GLOVES AND GOGGLES MUST BE PROVIDED FOR THE OPERATORS WHEN PREPARING AND USING THE ACID SOLUTION. RUBBER GLOVES SHOULD BE CHECKED REGULARLY FOR PIN HOLES AND REPLACED IF NECESSARY.
WARNING
SAFETY NOTICES MUST ALWAYS BE PUT IN LOCATIONS WHERE THEY CAN BE EASILY SEEN.
WARNING
EYE-WASH BOTTLES AND HF BURN JELLY MUST BE PROVIDED AS CLOSE AS POSSIBLE TO THE PLACE OF WORK.
WARNING
IF CONTAMINTION OF THE SKIN OCCURS, CLEAN YOUR SKIN WITH A LARGE QUANTITY OF CLEAN RUNNING WATER.
WARNING
ALL BURNS, LARGE OR SMALL, MUST BE SEEN TO AT THE NEAREST FIRST AID POST.
WARNING
THE FIRST AID POST MUST BE TOLD WHICH SOLUTION (THE ACIDS INVOLVED) HAS CAUSED THE BURN.
Procedure
Slowly and cautiously add 12.5 percent by volume of CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE and stir.
Slowly and cautiously add 5 percent by volume of CoMat 01-197 PHOSPHORIC ACID and stir.
Add 1.5 percent by volume of CoMat 01-200 ACID ADDITION AGENT and stir.
SUBTASK 70-33-76-100-001 Make-up of the Nitric-Phosphoric Acid Stripping Solution
Slowly and cautiously add 2 oz/gal (15 g/l) of CoMat 03-135 DRY ACID SALT and stir to dissolve.
Slowly and cautiously add 10 fl oz/gal (77 cc/l) of CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE and stir to mix.
SUBTASK 70-33-76-100-002 Make-up of the Nitric Acid Stripping Solution
NOTE
The tank must be polyethylene or polypropylene because of the fluoride in the dry acid salt.