ATLANTIC TURBINES PT6A, JT15D AND ~W100 ENGINE SERIES

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1 ATLANTC TURBNES Worldwide Engine Support P&WC DSTRBUTOR & DESGNATBF OVERHAUL FACLTY PT6A, JT15D AND ~W100 ENGNE SERES Summary & Condition Report Module - Engine Overhaul Engine Model- PT6A-28 Engine SN PT6A Series PWlOO Series JTl5D Series A Vector Aerospace Company

2 SUMMARY & CONDTON REPORT FOR Engine Overhaul Engine Type: PT6A-28 Serial Number: Customer: Blackhawk Modifications nc. Prepared By: 5 Flood By: NKey Date: dune t 108 / Report #: CSE

3 SUMMARY & CONDTON REPORT CSE Customer: Blackhawk Modifications nc. tem: Engine Overhaul Model: PT6A-28 Engine Serial # Customer Pia # N/A Atlantic Turbines Order # 1220/4 Work Order # / Running Times: TSN: TSHS: 1117 CSN: 3871 CSHS: REASON FOR REMOVAL Scheduled Removal 2.0 PREVOUS MANTENANCE Date [l.ocation TSN CSN WS WO p&wc (Africa) HS S 782 1

4 SUMMARY & CONDTON REPORT CSE SUMMARY The Engine was received at Atlantic Turbines nc on February 11, PC-E was completely disassembled, cleaned, and inspected LA.W. the applicable P&WC Overhaul Manuals. Refer to Appendix "A" for further parts breakdown. The Engine was re-assembled and test run LA.W the P&WC Overhaul Manual. Upon completion of a successful test run, the e?gine was packaged for return shipment to the customer on June 03, MODFCATONS The following SB's were incorporated this visit: 1248R2 ntroduction of mproved Key washer for First and Second-Stage Reduction Carrier Screws 1276R3 ntroduction of Corrugated Stainless Steel Gaskets at Fuel Nozzle Adapter and Compressor Air Delivery Tube Assembly 1300Rl Modification of Accessory Gearbox Diaphragm Oil Tank Center Tube Lead - in Chamber 1397R3ntroduction of mproved Filtration For Reduction Gearbox Planet Gear Bearings 1404R7ntroduction of Bronze Planet Gear Bearings 1421R4Modification of Accessory Gearbox Housing Assembly 1479Rl Replacement/Modification of T5 Thermocouple Wiring-Harness Assembly 1484Rl Modification of First-Stage Reduction Carrier Balancing Assembly Plain Nut 1490ROReplacement of Asbestos Fiber Gaskets 1561R3Modification/Replacement of Fuel Control Unit 2

5 SUMMARY & CONDTON REPORT CSE R3 Modification of Scavenge Pump Housing Assembly 1567R2 Modification/Replacement of Propeller Shaft 1591R2 Replacement/Modification of Compressor Stators 1610R2 nspection of Turbine Exhaust Duct 1620ROReplacement of Oil Transfer Tube Adapter Retaining Ring 1637ROnspection of Oil Tank Filler Cap The following SB's were found embodied: 1148 ntroduction of Sliver-Plated Bolts of Revised Length - Fuel Manifold 1217 mproved Strength Power Turbine Shaft Housing and Reduction Gearbox Condition Monitoring 1231 Modification of No.2 Bearing Housing Cover 1249 ntroduction of New Oil Tank Dipstick 1282 ntroduction of Fine Mesh Oil Filter Element 1316 ntroduction of mproved Engine/Fuel Pump Coupling 1322 Modification of Oil Tank Cap 1367 ntroduction of mproved Retention for First Stage Carrier Balancing Assembly and Second Stage Sun Gear 1379 ntroduction of Oil Filter Housing Check Valve 1381 Replacement of Propeller Shaft Oil Seal Runner/ntroduction of Propeller Shaft Oil Seal Dust Seal 1389 ntroduction of Power Turbine Shaft Housing and No.3 Cover mproved Antirotation Feature 1396 ntroduction of mproved Fuel Nozzle Assembly 1409 ntroduction of mproved Lubrication to Fuel Pump Gear shaft Spline 1411 Rework of Air Compressor Bleed Valve Piston 1416 nspection/replacement of Reversing Lever Guide Pin Bracket Assembly 1427 Modification of Power Turbine Containment Ring 1431 Modification of mproved Propeller Shaft Oil Seal Runner 1477 Replacement of Compressor Bleed Valve Assembly Performed Packing 3

6 SUMMARY & CONDTON REPORT CSE Replacement of Main Scavenge-Pump Screen Assembly 1544 Replacement/Modification of Rear Push - Pull Control Wire Rope Terminal 1555 nspection/replacement of Fuel Nozzles and Manifold Adapters 1558 nspection/replacement of Fuel Nozzles and Manifold Adapters 1571 Modification of Propeller Shaft Assembly 1599 ntroduction of Optional First-Stage Reduction Carrier Balancing Assembly 1606 ntroduction of Optional First-Stage Reduction Carrier Balancing Assembly 1645 nspection of Fuel Pump, Coupling Shaft Spline The following Airworthiness directives were complied with during this visit: Country AD# Description Status USA Fuel Pump nput Replacement N/A top/n USA P.T. Containment Complied With USA nstallation of Chip Detector Previously Complied With USA Fuel Pump Coupling Previously Complied With USA Engine Failure N/ A to Engine SN USA P3 Delivery Line (Filter) P3 Filter not installed USA BOV N/A tos/n USA Exhaust Duct Complied With Canada CF ndStage Pinion & PT Blades Complied With Canada CF BOV N/A tos/n Canada CF Exhaust Duct Complied With 4

7 SUMMARY & CONDTON REPORT CSE CONDTON SUMMARY Please refer to Appendix" A" 6.0 ATTACHMENTS Performance Statement 5

8 AppendixA nsnucno» GEARBuX (1) REPARABLE 1 RTNG RNG HALVES, OL SEAL REFNSH AND REPLACE FELT STRP OVERHAUL REPARABLE 1 RTNG RNG HALVES, OL SEAL REFNSH AND REPLACE FELT STRPS OVERHAUL RESTORE TN PLATNG REPARABLE 1 ASSY, PROP SHAFT AND CORROSON OVERHAUL - RESSTANT COATNG REPARABLE 1 SLEEVE, PROPSHAFT OL ORROSON FORMNG TRANSFER UNDER SLVER PLATNG OVERHAUL SERVCEABLE 1 ADJUSTNG SPACER REMOVED TO ACHEVE PROPER BACKLASH NEW REPARABLE 1 CARRER, RGB 2ND STG GEAR DA "D2" OVERSZE OVERHAUL CL12 REPARABLE 5 ASSY, 2ND STG PLANET GEAR AXAL SCORNG NNER SLEEVE BRG'S CL12 OVERHAUL REPARABLE 1 NUT PLAN ROUND MODFY PER SB OVERHAUL REDUCTON GEARBUX (1) ENGNE CONVERTED TO AS REMOVED 1 GEAR SET, 1ST STG PLANET 28 & PN S NOT NEW AS REMOVED 1 APPLCABLE. ENGNE CONVERTED TO - GEAR, 1ST STG REDUCTON 28 AND PN NOT RNG APPLCABLE OVERHAUL REPARABLE 1 RGBREARHSG FLANGE BRG S OVERSZE AND REFNSH OVERHAUL REPARABLE 1 COVER, ELECTRCAL CONNECTOR LOSS OF COATNG OVERHAUL UNSERVCEABLE 1 CHP DETECTOR, MAGNETC DAMAGED MSSNG POTTNG COMPOUND OVERHAUL

9 All{ N LET REPARABLE 1 SCREEN ASSY, COMP NLET WRE MESH STRANDS SEPERATNG OVERHAUL REPARABLE 1 FARNG ASSY, COMP NLET COATNG LOSS OVERHAUL AR~LET CONCAL SEATNG REPARABLE 1 ADAPTER, OL TANK SURFACE SCORED & OVERHAUL PTTED NOTRECD NOT RECEVED 1 PLUG,PLAN NOT RECD AT NSP OVERHAUL REPARABLE 1 CAP, OL TANK PRESS VALVE COATNG LOSS OVERHAUL AS REMOVED 1 PLATE, ENGNE D NOT RECEVED AT NSPECTON DP21-28 NEW REPARABLE 1 PLATE, D SUPPORT COATNG LOSS OVERHAUL NOTRECD NOT RECEVED 1 OL JET FLTER, # 1 BRG NOT RECEVED AT NSPECTON OVERHAUL NOTRECD NOT RECEVED 1 PN, FLAT HEAD NOT RECEVED AT NSPECTON AN NEW NOTRECD NOT RECEVED 1 PLUG, OL TANK DRAN NOT RECEVED AT NSPECTON OVERHAUL REPARABLE 1 CASE, COMPRESSOR NLET COATNG LOSS OVERHAUL REAR FRESEAL REPARABLE 1 FRESEAL MOUNT RNG, UPPER HALF NO SEAL STRP OVERHAUL REPARABLE 1 BOTTOM FRESEAL NO SEAL STRP OVERHAUL GA~ GE~ERATOR CA~E REPARABLE 1 CASE, GAS GEN REFNSH SHANKNUTS OVERHAUL

10 [723tl05 - COMPRESSORROTOR.. " REPARABLE 1 STUBSHAFT, COMP (FRONT) CORROSON ON MOUNTNG FLANGE RDC OVERHAUL REPARABLE 6 TE ROD, COMP ROTOR HARDNESS CHECK & REFNSH OVERHAUL REPARABLE 1 CENTRFUGAL MPELLER RASE FOR BALANCNG OVERHAUL REPARABLE 1 MPELLER HSG RESTORE COATNG OVERHAUL REPARABLE 1 SPACER, 3RD STG COMP DSK COATNG LOSS OVERHAUL REPARABLE 1 DSK, 3RD STG COMP COATNG LOSS OVERHAUL 1 BLADE EXCESSVE UNSERVCEABLE 1 BLADES, 3RD STG COMP ROTOR EROSON ASSOCATED OVERHAUL WTH THNNED ARFOL REPARABLE 31 BLADES, 3RD STG COMP ROTOR FOD/EROSON/BENT TPS/COATNG LOSS OVERHAUL COMPRESSOR ROTOR REPARABLE 1 STATOR, 3RD STG COMP DA S O/MAX.0014 FC AFFECTED OVERHAUL REPARABLE 1 SPACER, 2ND STG COMP DSK COATNG LOSS OVERHAUL REPARABLE 1 DSK, 2ND STG COMP COATNG LOSS OVERHAUL UNSERVCEABLE 13 EXCESSVE EROSON BLADES, 2ND STG COMP ASSOCATED WTH ROTOR THNNED ARFOL OVERHAUL REPARABLE 19 BLADES, 2ND STG COMP FOD/EROSON/BENT TE ROTOR TPS/COATNG LOSS OVERHAUL REPARABLE 1 STATOR, 2ND STG COMP EROSON/COATNG LOSS OVERHAUL REPARABLE 1 STATOR, 1ST STG COMP FC 391 S O/MAX.0003 COATNG LOSS OVERHAUL REPARABLE 1 RNG, BLADE RTNG COATNG LOSS OVERHAUL REPARABLE 1 HUB, COMP REAR (DETAL) COATNG LOSS OVERHAUL

11 ~~..,E1:)SURROTuR REPARABLE 16 BLADES, 1ST STG COMP ROTOR BLEND REPAR & RESTORE OVERHAUL BLADE ROOT COATNG HOT ~ REPARABLE 1 HSG, CT SHROUD WORN DA. "E" OVERHAUL RUBBED AND TO OBTAN CL5 UNSERVCEABLE 16 SEGMENT, CT SHROUD PROPER CLEARANCE AT CL6 NEW ASSY CL REPARABLE 1 RNG, CT VANE CRACK ON T/E WTH DSTORTON OF TE CL OVERHAUL REPARABLE 1 SMALL EXT DUCT, COMB CHAMBER SKM MACHNE FACE "E" OVERHAUL REPARABLE 1 COVER ASSY, #2 BRG HSG WORN SLOTS OVERHAUL PT NTERST AGE tem Part # Removed- Condition Quantity Description Discrepancy Part nstalled nstalled Condition REPARABLE 1 HSG, PT STATOR FRETTNG AND EROSON ON SEALNG FACE OVERHAUL CL REPARABLE 1 PT STATOR ASSY, 1ST STG.0125 FLATNESS ON (VANE RNG) CONTACT FACE CL OVERHAUL PU\! ER TURBNE NOTRECD NOT RECEVED 1 STRANER, OL JET NOT NSP NEW ' POWER TURBNE UNSERVCEABLE 1 SUN GEAR, 1ST STG REDUCTON REPLACE PER T NEW LGHT SULFDATON ON REPARABLE 41 PTBLADE L/E,NCKS/DENTS ON L/E OVERHAUL TE EXHAUST DUCT REPARABLE 1 EXHAUST DUCT CRACKS N REAR BOLTNG FLANGE OVERHAUL

12 AGB REPARABLE 1 BRACKET, ENGNE REAR LFTNG COATNG LOSS OVERHAUL UNSERVCEABLE 1 CARRER, OL SEAL GOUGED & WORN SEALNG SURFACE OVERHAUL AS3221 REPARABLE 3 PLAN COVER COATNG LOSS AS3221 OVERHAUL REPARABLE 1 FLANGED COVER COATNG LOSS OVERHAUL REMOVED FOR AS REMOVED 1 ADAPTER, OL TEMP BULB CONVERSON OF PT6A OVERHAUL TO A PT6A REPARABLE 1 GEARSHAFT, STARTER-GEN SEALNG FACE DRVE SCRATCHED OVERHAUL REPARABLE 1 HSG, MAN PRESS PUMP SC EPOXY REPAR & REFNSH OVERHAUL UNSERVCEABLE 1 GEAR, MAN PRESS PUMP SPALLNG OVERHAUL AGB REPARABLE 1 COVER, MAN PRESS PUMP UNSERVCEABLE 1 PRVHOUSNG CORROSON ON FACE 'F' & N SLOT 'E' SCORNG ON PRV SLEEVE MATNG DA OVERHAUL OVERHAUL ABRASVE WEAR AND UNSERVCEABLE 1 DRVE SHAFT, AGB SCA V PUMP PTTNG ACCROSS ENTRE OVERHAUL FACE OF GEAR TEETH UNSERVCEABLE 2 SPUR GEAR, SCA V PUMP SPALLNG OVERHAUL PUMP HSG-NNER, MAN AGB MODFED PER S/B1564 & REPARABLE 1 01R OVERHAUL EXTERNAL SCA V REFNSH REPARABLE 1 DAPHRAGM, ACCY GEARBOX NC SB1300, AND REFNSH OVERHAUL REPARABLE 1 HSG, ACCY GEARBOX NC SB1421 AND REFNSH OVERHAUL UNSERVCEABLE 1 PRVSPRNG FALED COMPRESSON TEST NEW

13 AGB PRE SB 1637 AND TUBE & DPSTCK/GAGE ASSY, REPARABLE 1 REPLACMENT OF PACKNG OVERHAUL OL FLLER REQ REPARABLE 1 TUBE, OL FLLER COATNG LOSS OVERHAUL FUEL HEATER N-HOUSE O/H law T E REPARABLE 1 FUEL HEATER 10552E OVERHAUL FUEL PUMP REPARABLE 1 FUEL PUMP S/C FOR OH OVERHAUL flu W DVDER S!C FOR O/H RETURN TO REPARABLE 1 FLOW DVDER OVERHAUL STOCK FUEL NOZZLES J UNSERVCEABLE 2 TRANSFER TUBES TUBES BENT OVERHAUL REPARABLE 10 FUEL NOZZLE (PRMARY) S/CFORO/H OVERHAUL ADAPTER, FUEL MANFOLD REPARABLE 3 S/C FOR O/H OVERHAUL (SECONDARY) - ' FUEL DRAN VALVE REPARABLE 2 ADAPTER, FUEL DRAN VALVE RESTORE ANT-GALL OVERHAUL SPRNG, DRAN VALVE FALED COMPRESSON UNSERVCEABLE NEW ADAPTER TEST FUEL CONTROL FUEL CONTROL UNT (FCU) - EXCHANGE TO BE MADE REPARABLE OVERHAUL ATTACHNG PARTS AT SC PER DW GNTON REPARABLE 1 BRACKET, GNTON EXCTER COATNG LOSS - REFNSH OVERHAUL

14 GNTUN CABLES & PLUG~ BLEED VALVE REPARABLE 1 ASSY, COMP BLEED VALVE REPARABLE 1 PSTON, BLEED VALVE REPARABLE 1 SEAT, BLEED VALVE PSTON PRL P REVERSNG ASSEMBLE VALVE law OjHMANUAL FRETTNG ON SEALNG FACE FRETTNG ON SEAL FACE & RESTORE COATNG OVERHAUL OVERHAUL OVERHAUL UNSERVCEABLE 1 SHAFT CASNG, PUSH PULL- THREADS AT END OF CONTROL FLEXBLE CASNG DAMAGED OVERHAUL UNSERVCEABLE 1 WRE ROPE, PUSH-PULL WRE ROPE FOUND CONTROL KNKED AT ASSEMBLY OVERHAUL REPARABLE 1 PLATE, JONT RTNG SWVEL LOSS OF COATNG OVERHAUL Pl<UP REVERSNG CASNG SWVEL JONT, PUSH UNSERVCEABLE 1 AXAL PLAY 0 jmax NEW PULL CONTROL UNSERVCEABLE 1 CONNECTOR, ROD END DAMAGED THREADS OVERHAUL LOSS OF COATNG, REPARABLE 1 LEVER, PROP REVERSNG OVERHAUL DAMAGED BUSHNG T5 '1DlCATNG SjC FOR OjH MSSNG REPARABLE 1 ASSY, BUS BAR OVERHAUL NSULATON

15 TS NDCATNG BULGNG ON PROBE, UNSERVCEABLE 5 THERMOCOUPLE CRACKED AT TERMNAL OVERHAUL LUGS, FAL NSULATON REPARABLE 3 THERMOCOUPLE MSSNG CERAMC AT TERMNALS OVERHAUL REPARABLE 1 WRNG HARNESS, FRETTNG EXPOSNG BEAR THERMOCOUPLE WRE OVERHAUL (JLTuBES REPARABLE 1 REAR ELBOW COATNG LOSS OVERHAUL REPARABLE 1 EXTERNAL COUPLNG COATNG LOSS OVERHAUL REPARABLE 1 FRONT ELBOW COATNG LOSS OVERHAUL REPARABLE 1 EXTERNAL COUPLNG COATNG LOSS OVERHAUL REPARABLE 1 TRANSFER TUBE 1 OF 2 TUBES REC'D WTH HEAVY DENTS,SC FOR OH OVERHAUL REPARABLE 1 ELBOW, FRONT OL SCA V COATNG LOSS OVERHAUL (JL FLTER REPARABLE 1 COVER, OL FLTER COATNG LOSS OVERHAUL OL FLTER AS REMOVED 1 FLTER ELEMENT - OL UNSERVCEABLE 1 SPRNG UNSERVCEABLE 1 SPRNG, BY-PASS VALVE FUEL HEATER CHECK VALVE NOT RECEVED AT NSPECTON FALED COMPRESSON TEST. FALED COMPRESSON TEST NEW NEW UNSERVCEABLE 1 SPRNG FALS COMPRESSON TESTS NEW UNSERVCEABLE 1 SLEEVE, FUEL HEATER CHECK VALVE DENTED OVERHAUL --

16 ATLANTC,~-1'- TURBNES PT6A Engine Performance Statement Model TSN CSN CSO PT6A GG SN PS SN March 28 th Work Performed O/H Zl HS D Repair D Test Only D Vane Flow: CT: Area 5.69 PT: Area /15.64 Performance Acceptance ~ Spec. Actual S.L.S Std. Day Power TT (T5A Trimmed) Deg. R T5D (Derived) N/A N/A Gas Gen. Speed RPM SFC. PPH/SHP , Press. Ratio@N/A - RPM N/A N/A Trim Data TT Trim Delta T (Untrimmed-Trimmed): 44.4 Deg. C TT Trim Delta T (Untrimmed-Trimmed): 80 Deg. F TT Trim Class: CL30 Trim Resistance: 10.5 Ohms BOV Seat Class: N/A Data Plate Speed: 549 SHP % RPM Performance Declaration hereby certify that the testing performed on this engine listed above was performed in accordance with all specified requirements detailed in the contract and/or purchase order. Remarks Engine converted from PT6A-21 to -28 Accept: ~ Fail: D Accept NCR No. Test Cell Stam 309 TEST Class 4 stamc1i) Q-Form 086 ( )