Rolls -Royce M250--C20 SERIES OPERATION AND MAINTENANCE. Table 602 Scheduled Inspections. Inspection Checksheet. A/C Make/Model S/N Reg. No.

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1 PARA 1. (cotd) B. Scheduled Ispectios Scheduled ispectios are made at periodic itervals i a effort to prevet egie malfuctio ad serve i the role of prevetative maiteace for the egie. The compoet to be ispected, the ature of the ispectio, ad the elapsed time after which the ispectio is to be performed are give i the Ispectio Checksheet, Table 602. The ispectio times are hours of egie operatio. Table 602 Scheduled Ispectios Ispectio Checksheet Ower Date A/C Make/Model S/N Reg. No. TSN Egie S/N TSN TSO This ispectio checksheet is to be used whe performig scheduled ispectios. This form ca be locally reproduced ad/or expaded to reflect the aircraft operatig eviromet. Keep the completed sheets as a permaet part of the aircraft egie records. Detailed iformatio regardig each ispectio item is cotaied i the refereced Operatio ad Maiteace Maual paragraphs. CAUTION: BEFORE UNDERTAKING ANY INSPECTION OR MAINTENANCE ACTION, CONSULT THE REFERENCED PARAGRAPHS OF THE OPERATION AND MAINTENANCE MANUAL. FAILURE TO FOLLOW THE RECOMMENDED INSTRUCTIONS IN THE MANUAL COULD RESULT IN EQUIPMENT DAMAGE OR DESTRUCTION, POSSIBLY RESULTING IN PERSONNEL DEATH OR INJURY. Iitial 100 Hour Ispectio 1 Ispect the etire egie for loose or missig bolts, broke or loose coectios, security of moutig accessory ad broke or missig lockwire. Check accessible areas for obvious damage ad evidece of fuel or oil leakage. 2 Ispect all B uts for applicatio ad aligmet of torque pait. If missig, loose B ut, retighte, ad apply torque pait. 3 Check moutig ad support bolts to be sure they are tight, lockwired ad i good coditio. Check security of screws ad rivets. Remove all foreig material which might be draw ito the compressor ilet. 4 Check accessible fuel system compoets, lies, ad coectios for security, damage or leakage. Accomplish with the boost pump o, if available. Remove, visually ispect ad clea if visual coditio dictates. ECOPYRIGHT 1971, 2017 Corporatio PARA 9.B., , Egie-- Servicig PARA 2., Page 605 Dec 15/98

2 Table 602 (cot) Scheduled Ispectios Iitial 100 Hour Ispectio (cot) 5 Ispect P c filter for proper clampig Util CEB--A is complied with, ispect P c filter assembly as follows: Without disassembly or removal of the P c filter assembly from the moutig bracket, ispect usig a 10x magificatio glass ad a bright light to detect ay sigs of cracks, payig particular attetio to both of the ed fittigs at their juctio with the ed walls. If cracks are detected, remove assembly ad comply with CEB--A Remove the Scroll--to--P c Filter Tube Assembly at both eds ad ispect for cracks usig 10x power glass. Pay particular attetio to the flared eds of the tube for cracks, ad to the areas beeath the floatig ferrules for frettig damage. Tubes--foud to cotai cracks ad/or excessive frettig damage are to be replaced by ew parts of the same part umber as removed. Excessive frettig is preset whe the ferrule has chafed the tube sufficietly to wear a step i the tube that ca be felt with a thumbail or other ispectio aid. 8 With the Scroll--to--P c Tube Assembly still removed ad usig a 10x power glass, ispect the elbow i the compressor scroll for distress/cracks/proper aligmet. No cracks are permissible. 9 Check fuel cotrol ad power turbie goveror likage for freedom of operatio, full travel ad proper riggig. Check security of likage for loose or wor likage ad likage bolts. 10 Ispect compressor ilet guide vaes ad visible blades ad vaes for foreig object damage. 11 Clea compressor with chemical wash solutio as required if operatig i a smoggy area, coditios with airbor pollutats or with water alcohol. 12 Visually ispect the water--alcohol ozzles for build--up of cotamiats which could restrict flow or alter the spray patter. Ultrasoic clea ozzles if equipmet is available. 13 Clea the 200 mesh scree (if equipped with water--alcohol ijectio kit). PARA 3.C., , 3.B., , 3.C., ad PARA 2.C., PARA 6., ECOPYRIGHT 1971, 2017 Corporatio Page 606 Ju 1/09

3 Table 602 (cot) Scheduled Ispectios Iitial 100 Hour Ispectio (cot) 14 Ispect the compressor scroll for cracks or breaks at the ati--ice air valve ad customer bleed port. If cracks or breaks are detected, check egie for possible vibratio causes. 15 Ispect for discharge air tube iserts that are cocked or backig out of the scroll. If cocked or loose iserts are detected, check egie for possible vibratio causes. 16 Visually check the compressor discharge air tubes for damage or deterioratio. 17 Check ati--ice valve for security, wor parts ad proper operatio. Valve eed ot be removed or disassembled uless a problem is detected. 18 Ispect compressor mout iserts, bolts ad uts for looseess, frettig or oil leakage. Replace or retighte as required. Check egie for possible vibratio causes. 19 Ispect the turbie support assemblies ad egie exhaust ducts for coditio of welded joits, for cracks ad bucklig. Check exhaust duct clamps for proper istallatio, coditio ad torque. 20 Wet splie starter--geerator gearshafts, ew productio or those replaced i accordace with the Rolls--Royce Commercial Egie Bulleti M250--C20 CEB--1082, do ot eed periodic ispectio ad lubricatio. Clea ad ispect ay other starter-- geerator gearshaft. Clea the female splies of the starter--geerator gearshafts ad the male splies of the starter--geerator with mieral spirits ad a soft brush. Ispect splies. Refer to Starter--geerator Gearshaft Female Splie Ispectio paragraph. Ispect the starter--geerator brushes for wear i accordace with the Aircraft Maual at the same time the splie ispectio is made. Lubricate acceptable splies with grease, Aeroshell No. 22, or equivalet. Before reistallatio of the starter--geerator, make sure torsioal damper members of the starter--geerator driveshaft are i hard cotact with each other. PARA 1.D.(2), this sectio PARA1D.(2),this Sectio. PARA 4.A., PARA 4., PARA 4.D., ad PARA 1.D.(2), this sectio PARA 8.A., PARA 4.B., ECOPYRIGHT 1971, 2017 Corporatio Page 607 Ju 1/12

4 Table 602 (cot) Scheduled Ispectios Iitial 100 Hour Ispectio (cot) 21* Drai the oil system ad refill (See Figure 601). Oil chaged at: 100 hours: 200 hours: 300 hours: 600 hours: PARA 11.C., , Egie Servicig The maximum oil chage iterval with a dry splie starter geerator is 100 hours or 6 moths, whichever occurs first. This limit ca be exteded if a wet splie starter geerator is istalled i accordace with the Rolls--Royce Commercial Egie Bulleti M250--C20 CEB--1082, ad the followig coditios are met. A. If a exteral scavege oil filter system is istalled the oil chage iterval ca be icreased to 200 hours or 6 moths, whichever occurs first. B. With a approved HTS (Third Geeratio Oil), but o exteral scavege oil filter system; the oil chage iterval ca be icreased to 300 hours or 12 moths, whichever occurs first. C. With a approved HTS (Third Geeratio Oil), ad a exteral scavege oil filter system is istalled, the oil chage iterval ca be icreased to 600 hours or 12 moths, whichever occurs first. CAUTION:SOME OPERATORS EXPERIENCE AND/ OR HARSH ENVIRONMENTS CAN DICTATE OIL CHANGES AT MORE FREQUENT INTERVALS. Exteral scavege oil filter systems must have a valid STC (Supplemetal Type Certificate). 21A Remove, ispect, ad clea the oil filter. Note ay accumulatio of metal chips, debris, or carbo particles. Coduct further ispectio of the lube system ad/or egie gear trai/bearigs if metal chips or debris are foud. See s 21, 21D, 38, 39, ad 40 below if carbo particles are foud. PARA 1.C., Follow the Supplemetal Type Certificate (STC) maufacturer s recommedatios regardig the replacemet/cleaig of the exteral oil filter elemets. Ispect the removed elemets for ay accumulatios of metal chips, debris, or carbo particles. It ca prove helpful to cut apart disposable (paper) filter elemets to facilitate this ispectio. If chips, debris, or carbo particles are foud, proceed with a additioal ispectio/maiteace as outlied i item 21A. above. ECOPYRIGHT 1971, 2017 Corporatio Page 608 Ju 1/14

5 100 Hour Ispectio (cot) Table 602 (cot) Scheduled Ispectios ECOPYRIGHT 1971, 2017 Corporatio 21B* Ispect ad clea the turbie pressure oil check valve. PARA 7.L., Check Valve P/N ad subsequet part umbers are ot applicable to this ispectio (these valves are cosidered ON CONDITION ). Iitial 21C* Turbie pressure oil tube scree assembly. Detach the clamp; the discoect the power turbie pressure oil tube at the coector (tee). Loose the tube couplig ut at the fireshield elbow oly to allow sufficiet movemet of the tube to eable removal of the scree. At assembly, tighte the coector couplig ut to lb i. ( N. m). Tighte the fireshield elbow couplig ut to lb i. (9--14 N. m). Tighte the clamp ut to lb i. ( N. m). 21D* Measure the oil flow from the scavege passage or exteral sump of the power turbie support. It is recommeded the exteral sump is ot removed for this check. PARA 7.E., This step must be performed before draiig the oil or after the oil system has bee refilled. s desigated with a asterisk (*) are to be accomplished o the same itervals as item 21* (Oil Chage). 21E Ispect magetic chip detector plugs. PARA 11.G., , Egie-- Servicig 21F 21G Ispect quick discoect magetic chip detector plugs ad flaged iserts for wear, if istalled. Remove, ispect ad clea the fuel ozzle. If o airframe mouted fuel filter is istalled, ispect the fuel ozzle filter. PARA 11.G., , Egie-- Servicig Operators ca fid it ecessary to ispect ad clea the fuel ozzle more ofte depedig o past experiece or operatig coditios. 22 If istalled, ispect the start couter for proper PARA 1., operatio, icrease i cout, ad for loose, chafed, frayed, or broke wires, ad loose coectors. 23 Check the coditio of the bleed valve gasket, without removig bleed valve. Replace gasket if air leaks (blowouts) ca be detected. 24 Visually ispect the outer combustio case (sheet metal ad weld seams) for cracks. Pay particular attetio to the weld seams i the area of the igiter plugs, dummy plug, drai valves, fuel ozzle bosses, armpit braze patch ad adjacet areas. Use a bright light ad mirror as ecessary. The OCC does ot have to be removed. Perform a Leak Tec check for istalled OCC s ad a FPI for removed OCC s. PARA 2.B.(1), (2), (3) ad (4), Clea the burer drai valve. PARA 3., Page 609 Ju 1/17

6 Table 602 (cot) Scheduled Ispectios 26 Ispect the igitio lead for burig, chafig,or crackig of coduit ad loose coectors ad broke lockwire. 27 O egies with CECO fuel system, clea or replace the high pressure fuel filter. 28 O egies with CECO fuel systems, visually ispect the bleed hole at the low poit i the scroll--to--goveror P c tube for ay obstructio. If the hole is ot completely ope, remove ay cotamiatio which could obstruct draiage of moisture from the tube usig a piece of lockwire. 29 Review egie records for compliace with all madatory bulletis, ispectios ad airworthiess directives. 30 Review egie records for time limited parts compoets, accessory or modules. 31 Eter compoet chages, ispectio compliace, etc., i log book as required. 31A If optioal CEB 1165, (removal of spare gearbox accessory drive gear), has bee accomplished without removal of bearig cage, the ispect bearig cage retetio for looseess. PARA 2., PARA 2., CEB 1165 Revisio 5 (or later revisio) Paragraph 2. B. (2) 200 Hour Ispectio I additio to the 100 hour ispectio items, perform the followig: WARNING: MANDATORY COMPLIANCE DATE FOR ROLLS--ROYCE COMMERCIAL ENGINE BULLETIN M250--C20 CEB WAS AUGUST 30, Perform fuel pump backlash ispectio o Sudstrad dual elemet pump P/N , , , , M250--CSL Iitial ECOPYRIGHT 1971, 2017 Corporatio Page 610 Ju 1/14

7 300 Hour Ispectio Table 602 (cot) Scheduled Ispectios I additio to the 100 hour ad applicable 200 hour ispectio items, do the followig: CAUTION: Iitial INSPECTION FREQUENCY MUST BE BASED ON THE NATURE OF THE EROSIVE AND/OR CORROSIVE ENVIRONMENT. THE OPERATING ENVIRONMENT CAN DICTATE A MORE FREQUENT INSPECTION INTERVAL.WHEN OPERATING IN A CORROSIVE AND/OR EROSIVE ENVIRONMENT FOR NON--COATED COMPRESSOR WHEELS, THE INSPECTION MUST NOT EXCEED 300 HOURS OR 6 MONTHS. FOR COATED COMPRESSOR WHEELS, INSPECTION MUST NOT EXCEED 300 HOURS OR 12 MONTHS. FOR COMPRESSOR BLISKS, INSPECTION MUST NOT EXCEED 300 HOURS OR 12 MONTHS. IF ANY WHEEL EXHIBITS CORROSION AND/OR EROSION, THE INSPECTION REQUIREMENT MUST REVERT BACK TO 300 HOURS OR 6 MONTHS. 33 Ispect the compressor case, blades, ad vaes whe operatig i a erosive ad/or corrosive eviromet. 10X power magificatio is recommeded for corrosio pit ispectio. CAUTION: PARA 1.D.(9), this sectio ad PARA 5.C, AIRCRAFT INSTALLED--ENGINE FUEL--PUMP FILTER DIFFERENTIAL PRESSURE WARNING SYSTEMS AND/OR OPERATING EXPERIENCE CAN DICTATE REPLACEMENT AT A LESSER TIME INTERVAL. IN NO INSTANCE CAN THE 300 HR REPLACEMENT INTERVAL BE EXCEEDED. 34 Replace the fuel filter elemet. This filter is a throw--away item. It is ot cleaable. Before discardig filter, ispect for sigs of cotamiats. If ay are foud, ispect the etire fuel system ad clea if ecessary. CAUTION: PARA 2.C., WHEN THERE IS EVIDENCE THAT THE FUEL PUMP FILTER HAS BEEN BYPASSED, THE GAS PRODUCER FUEL CONTROL INLET FILTER, THE FUEL NOZZLE FILTER, THE GOVERNOR FILTER AND THE HIGH PRESSURE FUEL FILTER, IF APPLICABLE, MUST BE CLEANED. (REFER TO SPECIAL INSPECTIONS, , TABLE 604) IF ANY CONTAMINATION IS FOUND IN THE FUEL NOZZLE FILTER, THIS WILL REQUIRE THAT THE FUEL CONTROL BE SENT TO AN AUTHORIZED REPAIR FACILITY FOR INTERNAL CLEANING. REFERENCE MUST ALSO BE MADE TO THE AIRFRAME MAINTENANCE MANUAL FOR FUEL SYSTEM MAINTENANCE FOLLOWING FUEL CONTAMINATION. CAUTION: PURGE AIR FROM THE FUEL SYSTEM. 35 Do a fuel pump bypass valve operatio check whe a fuel filter is replaced. Applicable to Sudstrad/Pesco ad Argo-- Tech/TRW maufactured pumps oly. 36 Remove, clea ad ispect egie P c filter every 300 hours or earlier as egie performace dictates. 37 Ispect ad clea the No. 1 bearig oil pressure reducer. PARA 3.A., PARA 3., PARA 3., ECOPYRIGHT 1971, 2017 Corporatio Page 611 Ju 1/17

8 300 Hour Ispectio (cot) Table 602 (cot) Scheduled Ispectios 38 Visually ispect exteral sump. Clea iteral carboous deposits ad build up from sump or replace if ecessary. 39 Ispect scavege oil strut i the power turbie support. Clea carboous deposits from strut. 40 Ispect No. 6 ad 7 bearig pressure oil ozzle. Clea iteral carboous deposits from ozzle. PARA 7. E., ECOPYRIGHT 1971, 2017 Corporatio PARA 7.E., PARA 7.G., Ispect the thermocouple assembly. PARA 2.B., A Remove ad disassemble fuel ozzle. Clea ad ispect fuel ozzle filter assembly. Assemble ad istall fuel ozzle Hour/1 Year Ispectio 42 Ispect all ucoated ad coated P/N ad power turbie outer coupligs uts for corrosio. M250--C20 CSL Compliace with Rolls--Royce Commercial Egie Bulleti M250--C20 CEB ad/or M250--C20 CEB removes this ispectio requiremet. 600 Hour Ispectio 43 Check the fuel pump driveshaft o Sudstrad sigle elemet pumps for splie wear. This ispectio is ot required for Agro--Tech (TRW) fuel pumps or Sudstrad fuel pumps P/N ad subsequet. 44 Do the scavege oil filter impedig bypass fuctioal test per Facet Service Bulleti No (Ref. Rolls--Royce M250 CSL 1164) for aircraft equipped with this type of exteral scavege filter system. Follow the Facet istructios ad time itervals, or follow this recommeded ispectio iterval each 600 hours. 45 Replace the fuel cotrol filter assembly. Bedix fuel cotrols P/N or (less--5) ad prior uless M250--C20 CEB has bee accomplished Hour Ispectio 46 Ispect Py port o Bedix power turbie goveror per M250 CEB--A The goveror must be removed from the egie to perform this ispectio. PARA 4.A., , 4.A., Iitial If CEB--A or CEB 1330 have bee accomplished, this ispectio is ot required Hour Ispectio 47 Replace the fuel cotrol filter assembly. PARA 4.A., Deleted Page 612 Ju 1/17

9 Table 602 (cot) Scheduled Ispectios Iitial 1750 Hour Ispectio 49 Ispect the compressor case, blades, ad vaes. Ispectio frequecy must be made as ecessary by operatig eviromet ad coditio of the compressor at the last ispectio. I erosive ad/or corrosive eviromet, ispect case at least every 300 hours. I ay eviromet do ot exceed 1750 hours without case ispectio. 10X power magificatio is recommeded for corrosio pit ispectio. PARA 1.D.(9), this sectio ad PARA 5.C, Heavy Maiteace Ispectio (HMI). Heavy maiteace ispectio must cosist of gas producer turbie wheels replacemet ad ispectio of assembled compoets per Rolls--Royce published documets. It is the resposibility of the operator to assure that the total time ad cycle life limits of specific parts listed i Sectio , Airworthiess Limitatios, are ot exceeded. As Required Ispectio 51 Clea the bleed valve after each 10 hr of water--alcohol augmetatio operatio or after cosumptio of each 750 gallos (2840 liters) of water--alcohol mixture. PARA 2.C., ECOPYRIGHT 1971, 2017 Corporatio Page 612A Ju 1/17

10 Egies with dry splie starter geerators must chage the oil at each 100 hours or 6 moths regardless of oil type. Figure 601 Oil Chage Flowchart ECOPYRIGHT 1971, 2017 Corporatio Page 612B Ju 1/15

11 C. Alterate Ispectio Schedule Based o curret egie cofiguratio ad the use of moder oils, operators ca use this alterate ispectio schedule. Prerequisites for this iclude: (1) The use of a wet splie starter/geerator drive shaft (ew productio or those replaced i accordace with the Rolls--Royce Commercial Egie Bulleti M250--C20 CEB--1082). (2) The use of High Thermal Stability (third geeratio) oils. Referece PARA 4.C., , Egie--Descriptio ad Operatio, for oil specificatios ad mixig cautios. (3) The egie must have a exteral oil filter istalled that has a valid STC (Supplemetal Type Certificate). Table 603 Alterate Scheduled Ispectios Ispectio Checksheet Ower Date A/C Make/Model S/N Reg No. TSN Egie S/N TSN TSO This ispectio checksheet is to be used whe performig scheduled ispectios. This form ca be locally reproduced ad/or expaded to reflect the aircraft operatig eviromet. Keep the completed sheets as a permaet part of the aircraft egie records. Detailed iformatio regardig each ispectio item is cotaied i the refereced Operatio ad Maiteace Maual paragraphs. CAUTION: BEFORE UNDERTAKING ANY INSPECTION OR MAINTENANCE ACTION, CONSULT THE REFERENCED PARAGRAPHS OF THE OPERATION AND MAINTENANCE MANUAL. FAILURE TO FOLLOW THE RECOMMENDED INSTRUCTIONS IN THE MANUAL COULD RESULT IN EQUIPMENT DAM- AGE OR DESTRUCTION, POSSIBLY RESULTING IN PERSONNEL DEATH OR INJURY. THIS INSPECTION CHECKLIST CAN ONLY BE USED IF THE OPERATOR IS USING AN APPROVED THIRD GENERATION (HTS) OIL AND AN AP- PROVED AIRFRAME MOUNTED SCAVENGE OIL FILTER. COMPLIANCE TO THE 150 HOUR AND 300 HOUR ITEMS IN THIS TABLE MUST BE PERFORMED AT LEAST EVERY 12 CALENDAR MONTHS OR BY HOURS, WHICHEVER OCCURS FIRST. Iitial 150 Hour Ispectio 1 Remove, examie, ad clea the fuel ozzle. If o airframe mouted fuel filter is istalled, examie the fuel ozzle filter Operators ca fid it ecessary to ispect ad clea the fuel ozzle more ofte depedig o past experiece or operatig coditios. 2 Ispect for discharge air tube iserts that are cocked or backig out of the scroll. If cocked or loose iserts are detected, check the egie for possible vibratio causes. Check the air tubes for cracks. 3 Visually check the compressor discharge air tubes for damage or deterioratio. ECOPYRIGHT 1971, 2017 Corporatio PARA 1.D.(2), this sectio PARA 4.A., Page 613 Ju 1/15

12 150 Hour Ispectio (cot) Table 603 Alterate Scheduled Ispectios 4 O egies with CECO fuel system, clea or replace the high--pressure fuel filter. 5 If optioal CEB 1165, (removal of gearbox spare accessory drive gear), has bee accomplished without removal of bearig cage, the ispect bearig cage retetio for looseess. 6 Visually ispect the outer combustio case (sheet metal ad weld seams) for cracks. Pay particular attetio to the weld seams i the area of the igiter plugs, dummy plug, drai valves, fuel ozzle bosses, armpit braze patch ad adjacet areas. Use a bright light ad mirror as ecessary. The OCC does ot have to be removed. Perform a Leak Tec check for istalled OCC s ad a FPI for removed OCC s. 300 Hour Ispectio PARA 2., CEB 1165 Revisio 5 (or later revisio) Paragraph 2. B. (2) Para 2.B. (1), (2), (3), ad (4), I additio to the 150 hour ispectio items, perform the followig: 1 Clea the compressor with the chemical wash solutio PARA 6., as required if operatig i a smoggy area, coditios with airbor pollutats, or with water alcohol. 2 Ispect the etire egie for loose or missig bolts, broke or loose coectios, security of moutig accessory, ad broke or missig lockwire. Check accessible areas for obvious damage ad evidece of fuel or oil leakage. 3 Ispect all B--uts for applicatio ad aligmet of torque pait. If missig, loose the B--ut, retighte, ad apply torque pait. 4 Check the moutig ad support bolts to be sure they are tight, lockwired, ad i good coditio. Check the security of screws ad rivets. Remove all foreig material which might be draw ito the compressor ilet. 5 Check accessible fuel system compoets, lies, ad coectios for security, damage, or leakage. Accomplish with the boost pump o, if available. Remove, visually ispect, ad clea if visual coditio dictates. 6 Ispect the P c filter for proper clampig. 7 Util CEB--A is complied with, ispect the Pc filter assembly as follows: Without disassembly or removal of the P c filter assembly from the moutig bracket, ispect usig a 10X magificatio glass ad a bright light to detect ay sigs of cracks, payig particular attetio to both of the ed fittigs at their juctio with the ed walls. If cracks are detected, remove the assembly ad comply with CEB--A PARA 9.B., , Egie-- Servicig PARA 2., Iitial ECOPYRIGHT 1971, 2017 Corporatio Page 614 Ju 1/14

13 Table 603 Alterate Scheduled Ispectios Iitial 8 Remove the Scroll--to--Pc Filter Tube Assembly at both eds ad ispect for cracks usig a10x power glass. Pay particular attetio to the flared eds of the tube for cracks, ad to the areas beeath the floatig ferrules for frettig damage. Tubes foud to cotai cracks ad/or excessive frettig damage are to be replaced by ew parts of the same part umber as removed. Excessive frettig is preset whe the ferrule has chafed the tube sufficietly to wear a step i the tube that ca be felt with a thumbail or other ispectio aid. 9 With the Scroll--to--Pc Tube Assembly still removed ad usig a 10X power glass, ispect the elbow i the compressor scroll for distress, cracks, ad proper aligmet. No cracks are permissible. 10 Check the fuel cotrol ad power turbie goveror likage for freedom of operatio, full travel, ad proper riggig. Check the security of likage for loose or wor likage ad likage bolts. 11 Ispect the compressor ilet guide vaes ad visible blades ad vaes for foreig object damage. 12 Visually ispect the water--alcohol ozzles for build--up of cotamiats which could restrict flow or alter the spray patter. Ultrasoic clea the ozzles if equipmet is available. 13 Clea the 200 mesh scree (if equipped with water--alcohol ijectio kit). 14 Ispect the compressor scroll for cracks or breaks at the ati--ice air valve ad customer bleed port. If cracks or breaks are detected, check the egie for possible vibratio causes. 15 Check the ati--ice valve for security, wor parts, ad proper operatio. The ati--ice valve eed ot be removed or disassembled uless a problem is detected. 16 Ispect the compressor mout iserts, bolts ad uts for looseess, frettig, or oil leakage. Replace or retighte as required. Check the egie for possible vibratio causes. 17 Ispect the turbie support assemblies ad egie exhaust ducts for the coditio of welded joits, for cracks, ad bucklig. Check the exhaust duct clamps for proper istallatio, coditio, ad torque. 18 Ispect the starter--geerator brushes for wear i accordace with the Aircraft Maual at the same time the splie ispectio is made. PARA 3.C., , 3.B., , 3.C., ad PARA 2.C., PARA 1.D.(2), this sectio PARA 4., PARA 4.D., ad PARA 1.D.(2), this sectio PARA 8.A., ECOPYRIGHT 1971, 2017 Corporatio Page 615 Ju 1/14

14 Table 603 Alterate Scheduled Ispectios Iitial 300 Hour Ispectio (cot) 19 Turbie pressure oil tube scree assembly. Detach the clamp, the discoect the power turbie pressure oil tube at the coector (tee). Loose the tube couplig ut at the fireshield elbow oly eough to allow sufficiet movemet of the tube to eable removal of the scree. At assembly, tighte, the coector couplig ut to lb i. ( N. m). Tighte the fireshield elbow couplig ut to lb i. (9--14 N. m). Tighte the clamp ut to lb i. ( N. m). 20 Measure oil flow from the scavege passage or the exteral sump of the power turbie support ad scavege passage of the gas producer support. PARA 7.D., Ispect ad clea the turbie pressure oil check valve. PARA 7.L., Drai the oil system ad refill. Oil chaged at: 300 hours/6 moths:(optioal) 600 hours/12 moths: Maximum oil chage iterval is 600 hours or 12 moths, whichever occurs first. Some operators experiece ad/or harsh eviromets ca dictate oil chages at more frequet itervals. 22A Remove, ispect, ad clea the oil filter. Note ay accumulatio of metal chips, debris, or carbo particles. Coduct further ispectio of the lube system ad/or egie gear trai/bearigs if metal chips or debris are foud. See s 21, 36, 37, ad 38 if carbo particles are foud. PARA 11.C., , Egie-- Servicig PARA 1.C., Follow the STC maufacturer s recommedatios regardig replacemet/cleaig of exteral oil filter elemets. Ispect removed elemets for ay accumulatios of metal chips, debris, or carbo particles. It ca prove helpful to cut apart disposable (paper) filter elemets to facilitate this ispectio. If chips, debris, or carbo particles are foud, proceed with additioal ispectio/maiteace as outlied i item 21A. 22B Ispect the magetic chip detector plugs. PARA 11.G., , Egie-- Servicig 22C Ispect the quick discoect magetic chip detector plugs ad flaged iserts for wear, if istalled. PARA 11.G., , Egie-- Servicig This step must be performed before draiig oil or after the oil system has bee refilled. 23 If istalled, ispect the start couter for proper operatio, icrease i cout, ad for loose, chafed, frayed, or broke wires, ad loose coectors. PARA 1., ECOPYRIGHT 1971, 2017 Corporatio Page 616 Ju 1/17

15 Table 603 Alterate Scheduled Ispectios Iitial 300 Hour Ispectio (cot) 24 Check the coditio of the bleed valve gasket without removig the bleed valve. Replace the gasket if air leaks (blowouts) ca be detected. 25 Visually ispect the outer combustio case (sheet metal ad weld seams) for cracks. Pay particular attetio to the weld seams i the area of the igiter plugs, dummy plug, drai valves, fuel ozzle bosses, armpit braze patch ad adjacet areas. Use a bright light ad mirror as ecessary. The OCC does ot have to be removed. Perform a Leak Tec check for istalled OCC s ad a FPI for removed OCC s. PARA 2., PARA 2.B., Clea the burer drai valve. PARA 3., Ispect the igitio lead for burig, chafig, or crackig of coduit, loose coectors, ad broke lockwire. 28 O egies with CECO fuel systems, visually ispect the bleed hole at the low poit i the scroll--to--goveror Pc tube for ay obstructio. If the hole is ot completely ope, remove ay cotamiatio which could obstruct draiage of moisture from the tube usig a piece of lockwire. 29 Review the egie records for compliace with all madatory bulletis, ispectios, ad airworthiess directives. 30 Review the egie records for time limited parts compoets, accessories, or modules. 31 Eter compoet chages, ispectio compliace, etc., i the log book as required. WARNING: PARA 2., MANDATORY COMPLIANCE DATE FOR ROLLS--ROYCE COMMERCIAL ENGINE BULLETIN M250--C20 CEB WAS AUGUST 30, Perform fuel pump backlash ispectio o Sudstrad dual elemet pump P/N , , , , ad CAUTION: M250--CSL INSPECTION FREQUENCY MUST BE BASED ON THE NATURE OF THE EROSIVE AND/OR CORROSIVE ENVIRONMENT. THE OPERATING ENVIRONMENT CAN DICTATE A MORE FREQUENT INSPECTION INTERVAL. FOR NON--COATED COMPRESSOR WHEELS, THE INSPECTION MUST NOT EXCEED 300 HOURS OR 6 MONTHS. FOR COATED COMPRESSOR WHEELS, INSPECTION MUST NOT EXCEED 300 HOURS OR 12 MONTHS. FOR COMPRESSOR BLISKS, INSPECTION MUST NOT EXCEED 300 HOURS OR 12 MONTHS. IF ANY WHEEL EXHIBITS CORROSION AND/OR EROSION, THE INSPECTION REQUIREMENT MUST REVERT BACK TO 300 HOURS OR SIX MONTHS. ECOPYRIGHT 1971, 2017 Corporatio Page 617 Ju 1/17

16 Table 603 Alterate Scheduled Ispectios Iitial 300 Hour Ispectio (cot) 33 Ispect the compressor case whe operatig i a erosive ad/or corrosive eviromet. 10X power magificatio is recommeded for corrosio pit ispectio. CAUTION: PARA 1.D.(9), this sectio ad PARA 5.C., AIRCRAFT INSTALLED--ENGINE FUEL--PUMP FILTER DIFFERENTIAL PRESSURE WARNING SYSTEMS AND/OR OPERATING EXPERIENCE CAN DICTATE REPLACEMENT AT A LESSER TIME INTERVAL. IN NO INSTANCE CAN THE 300 HR REPLACEMENT INTERVAL BE EXCEEDED. 34 Replace the fuel filter elemet. This filter is a throw--away item. It is ot cleaable. Before discardig the filter, ispect for sigs of cotamiats. If ay are foud, ispect the etire fuel system ad clea if ecessary. PARA 2.C., CAUTION: CAUTION: WHEN THERE IS EVIDENCE THAT THE FUEL PUMP FILTER HAS BEEN BYPASSED, THE GAS PRODUCER FUEL CONTROL INLET FILTER, THE FUEL NOZZLE FILTER, THE GOVERNOR FILTER, AND THE HIGH--PRESSURE FUEL FILTER, IF APPLICABLE, MUST BE CLEANED. (REFER TO SPECIAL INSPECTIONS, , TABLE 604). IF ANY CONTAMINATION IS FOUND IN THE FUEL NOZZLE FILTER, THIS WILL REQUIRE THAT THE FUEL CONTROL BE SENT TO AN AUTHORIZED REPAIR FACILITY FOR INTERNAL CLEANING. REFERENCE MUST ALSO BE MADE TO THE AIRFRAME MAINTENANCE MANUAL FOR FUEL SYSTEM MAINTENANCE FOLLOWING FUEL CONTAMINATION. PURGE AIR FROM THE FUEL SYSTEM. 35 Do a fuel pump bypass valve operatio check whe a fuel filter is replaced. Applicable to Sudstrad/Pesco ad Argo-- Tech/TRW maufactured pumps oly. 36 Visually ispect the exteral sump. Clea iteral carboous deposits ad build up from the sump or replace if ecessary. 37 Ispect the scavege oil strut i the power turbie support. Clea carboous deposits from the strut. 38 Ispect the No. 6 ad 7 bearig pressure oil ozzle. Clea iteral carboous deposits from the ozzle. PARA 3.A., PARA 7.E., PARA 7.E., PARA 7.G Ispect the thermocouple assembly. PARA 2.B., A Remove ad disassemble the fuel ozzle. Clea ad examie the fuel ozzle filter assembly. Assemble ad istall the fuel ozzle ECOPYRIGHT 1971, 2017 Corporatio Page 618 Ju 1/17

17 Table 603 Alterate Scheduled Ispectios Iitial 500 Hour/1 Year Ispectio 1 Ispect all ucoated ad coated P/N ad power turbie outer couplig uts for corrosio. M250--C20 CSL Compliace with Rolls--Royce Commercial Egie Bulleti M250--C20 CEB ad/or M250--C20 CEB removes this ispectio requiremet. 600 Hour Ispectio I additio to the 150 hour ad 300 hour ispectio items, perform the followig: 1 Remove, clea, ad ispect the egie Pc filter every 600 hours or earlier as egie performace dictates. 2 Ispect ad clea the No. 1 bearig oil pressure reducer. 3 Check the fuel pump driveshaft o Sudstrad sigle elemet pumps for splie wear. PARA 3., PARA 3., This ispectio is ot required for Agro--Tech (TRW) fuel pumps or Sudstrad fuel pumps P/N ad subsequet. 4 Do the scavege oil filter impedig bypass fuctioal test per Facet Service Bulleti No (Ref. Rolls-- Royce M250 CSL 1164) for aircraft equipped with this type of exteral scavege filter system. Follow the Facet istructios ad time itervals, or follow this recommeded ispectio iterval each 600 hours. 5 Replace the fuel cotrol straier assembly. (Bedix fuel cotrols P/N or (less--5) ad prior uless M250--C20 CEB has bee accomplished). PARA 4.A., , 4.A., Hour Ispectio 1 Ispect Py port o Bedix power turbie goveror per M250 CEB--A The goveror must be removed from the egie to perform this ispectio. If CEB--A or CEB 1330 have bee accomplished, this ispectio is ot required Hour Ispectio 1 Replace the fuel cotrol filter assembly. PARA 4.A., , 2 Deleted The fuel cotrol straier assembly must be replaced o all fuel cotrol uits that have ot had CEB accomplished. ECOPYRIGHT 1971, 2017 Corporatio Page 619 Ju 1/14

18 Table 603 Alterate Scheduled Ispectios Iitial 1750 Hour Ispectio 1 Ispect the compressor case, blades, ad vaes. Ispectio frequecy must be made as ecessary by operatig eviromet ad coditio of the compressor at the last ispectio. I a erosive ad/or corrosive eviromet, ispect the case at least every 300 hours. I ay eviromet, do ot exceed 1750 hours without a case ispectio. 10X power magificatio is recommeded for corrosio pit ispectio. 2 Heavy Maiteace Ispectio (HMI). Heavy maiteace ispectio must cosist of gas producer turbie wheels replacemet ad ispectio of assembled compoets per Rolls--Royce published documets. It is the resposibility of the operator to assure that the total time ad cycle life limits of specific parts listed i Sectio , Airworthiess Limitatios, are ot exceeded. PARA 1.D.(9), this sectio ad PARA 5.C., As Required Ispectio 1 Clea the bleed valve after each 10 hr of water--alcohol augmetatio operatio or after cosumptio of each 750 gallos (2840 liters) of water--alcohol mixture. PARA 2.C., D. Special Ispectios Special ispectios are required whe the egie has bee subjected to abormal operatig coditios, whe egie damage is suspected, or whe associated parts are removed from the egie. The special occurrece, the compoet or system to be ispected, ad the ature of the ispectio are give i Table 604. ECOPYRIGHT 1971, 2017 Corporatio Page 620 Ju 1/17