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This information is for selected maintenance shops only!

aero-contact has expanded its test and repair facilities for L-29, L-39, MiG-15/17/21 and ISKRA items.

YAK equipment on request. 1) RPM Transmitters and Indicators

- Testing of correct indication and transmitting with calibrated test bench equipment - Measuring of the 3 phases voltage and frequency provided by the transmitter under simulated load - Repair of DTAE-1 / DTAE-2 / DTAE-2-8 etc. transmitters (removal of internal corrosion, re-magnetization of DTAE rotors etc.)

KTU-1M test set

FAQ: Why should I do that? - Your RPM reading is somehow low…so let’s turn the FCU screws? - Long term stored equipment might be effected by corrosion and old grease in the transmitter bearings. - The rotor of the RPM transmitter loses its magnetization, your voltage output on the three

single phases is low � your indicated RPM is low! No reason to turn the screws on the FCU. - RPM measurement systems were tested after every 2 years or 200 hrs in the AF. When was

the last time your system got tested? - You have spare parts on stock for many years and you are going to use them for trouble shooting….are they still OK? - The most accurate instrument always belongs in the front cockpit!

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What will I get?

- A test protocol for each item. - If repairs are necessary, you will be informed and can decide if you want it repaired or not,

same is valid if the test will result in the need of a factory overhaul, you decide and we will take care of it.

What do I have to do?

- Remove the items from the airplane or your shelf, label them correctly with the airplane's S/N and its position (i.e. front / rear cockpit).

- Send it to us as "parts for test and repair – no sale, to be returned to the sender after test". Put this on the AWB for shipping which saves you and us customs problems, tax and duty.

What’s the best option?

- RPM equipment should always be tested in sets (transmitters and indicators which belong together) or in pairs. But generally, single instrument tests are possible as well.

2) EGT Indicators TST-1, TST-2, TWG-1, ITG-1 etc. Tester UPPO with L-39 EGT Indicator TST-2 and Test Protocol FAQ: Why should I do that?

- Is your EGT really high and your engine in danger? - The most accurate instrument always belongs in the front cockpit!

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3) Fire Detecting System SSP-2 I

- Tests were normally performed after every 2 years or 200 hrs. - Operating the FIRE test switch in the cockpit tells you only that both channels are

electrically working.

Testing of the fire detection box BI-2I with tester PP-SSP FAQ: Why should I do that?

- The test from the cockpit tells you nothing about the correct setting of the activation threshold for each channel of the box (that’s when your "Fire" light really comes ON).

Testing of DTBG temperature sensors with test box "imitated" engine fire

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- The test also ensures that your detecting system resets correctly after a fire was

extinguished. - Can I do the test of the DTBG sensors with a heat gun? …Not really! - The sensor also has an "activation point" which will be tested under imitated conditions.

4) Triple gauge engine instruments (all versions)

Test box AEUPM-2M with MiG-17 gauge FAQ: Why should I do that?

- Just see above…. - It's recommended to test the sensor/transmitter/pressure switches as well.

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5) Oil Pressure / Fuel Pressure / Oil Temperature / Hydraulic Pressure Switches, Aggregates, Actuators, Brakes, GA-XXX valves

- Such as MSTW-1, 3 (MiG-21), MSTW-1, 4 (L-39), Ha-20 (L-39)….GA-135T (MiG-21), LUN 7518, GA-142, GA 184/85 leak rate test, LUN 7364 MBCV……

FAQ: Why should I do that?

- Well, everything has already been said...

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6) APU Igniter box LUN 2201-8 and all dash numbers (M-601 engine), LUN 2203-8 (S-5), LUN 2245.05 (M-701 engine)

- To be done after 200 hrs, re-adjusting breaker contacts and the output high voltage

High voltage test

Fresh overhauled box

FAQ: Why should I do that?

- If you hear less than 4 clicks per second at APU start…. - The igniter box is not in production any more, so keep your system in good shape. - The Unison replacement box is kind of expensive…

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7) Temperature limiter RT-12-9

- prevents your engine from overheating - gives you a chance to verify the 700°C and 730°C setting of the box - avoids a bad influence on the FCU, if the RT-12-9 is not correctly adjusted

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8) Vibration Monitoring System IW -300 UPIW-U Test box with BAE-1 electronic box. The test includes the MW-26 sensor as well. FAQ: Why should I do that?

- If the vibration gauge shows something suspicious… - The Vibration system fails during the pre-taxi test at N-1 85%. - The gauge shows nothing at all. - The vibration warning light comes on and the pointer at the gauge is still between the yellow

markings.

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9) Radar Altimeter RW-5 / RW-5M test The working radar altimeter is a perfect aid, even if it reads in meters. FAQ: Why should I do that?

- Well, it's up to you….

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10) Inverter Tests of all LUN and PT-series

- can be done LUN 2456 and LUN 2457 installed on the test bench

LUN 2458 installed on the test bench

FAQ: Why should I do that?

- The test shows the performance of the inverter without and with an imitated load.

- Malfunctions of the cooling system can be identified.

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11) Ejection seat and parachute automate testing for KAP-3, AD-3, KPA-4, PKK, PKK-U, LUN 5931, LUN 5932, LUN 5820, LUN 5821 etc.

- All automates will be tested according to their specification (altitude, time, speed, release force).

KPA4-425 (MiG-21) on the test bench

Pull test to check release force on KPA4-425

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Ejection seat automate LUN 5820 on the test bench

Parachute automate LUN 5931 at the "4000m" release test

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Parachute automates ready to go back to the customer: ...with passports and test protocol….

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Instructions If you are going to send us parts for test or repair:

- Mark them on the shipping docs or on the packing list as:

Airplane parts for test / repair in Germany (Ejection Seat Handles) Flugzeugteile für Test/Reparatur in Deutschland (Katapultiergriffe)

Not for sale, to be returned to sender in USA after test/repair Kein Verkauf, Rücksendung zum Absender in USA, nach Test/Reparatur

Customs Tariff Number: 88033000

Aero-Contact EORI No.: DE3332977-0000. Please inform us in advance and we will make the red German Translation for you. Send the cores to: Aero-Contact Bernd Rehn Am Loeschteich 6 02694 Malschwitz Germany Ph: +49 3591 6797-11 Cell +49 172 284-6690 Print it in English and German language on the shipping docs and give it only a value of 50 USD/ea. to avoid custom duty and import/export taxes!

- All parts / instruments must be equipped with a tag. The tag should consist of the following

information: Owner Aircraft type and S/N TT / TSO or shelf part Brief failure description, if applicable If passports for the instruments are available, please include them!

- With arrival of your parts we will carry out an incoming inspection for shipping damages

and take pictures of your equipment for your and our files. - With performing the tests, for each single unit or set of instruments (i.e. RPM

Indicator/Transmitter) a test protocol will be issued. - If an instrument fails the test, you will get the information and you decide if the instrument

should undergo a repair or overhaul, or if we should scrap it. We can also send it back to you on your request.

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- If you don’t have passports but you wish to get a duplicate for your instrument from us, we

will issue such a document based on the information provided by you and the Mfr’s basic data.

Price for testing Since there is a wide range of parts and some need a 30 minutes test only (like pressure switches) and some need a 5 hrs test (like inverters), please ask per email for our quotation. As a sample may serve: - 1 x ITAE-2-8 RPM indicator, single instrument = 90,00 Euros - Set of 2 ea. DTAE-2.(8) and 2 ea. ITAE-2-8 = 360,00 Euros - single triple gauge indicator L-29 / MiG-17 = 45,00 Euros If passports should be issued for your instrument, an additional fee of 8 Euros will apply. Please note that the above shown tests are only a small selection from our capability! If you have further questions, please email us.

Aero-Contact Am Loeschteich 3/6 02694 Malschwitz

Germany

Email: info@aero-contact.com Internet: www.aero-contact.com

Phone: +49 3591 6797-11 Fax: +49 3591 6797-21

Please note that after test the parts will be returned only after receiving your payment.