(49)
Inspect condition of starter-generatorcables.
(50)
Inspectconditionof starter-generator coolingair ducts.
(51)
Cleandualdrivelubefilter.
(52)
Inspectgeneratorcontrol units (GCU)for security, damageandwiringintegrity.
(53)
Inspect bleed air lines,flexiblelines and couplings for security, damageand leakage. (Alsoseelatest PiperService Bulletin No.914).
(54)
Checkbleedair shutoff valveand mixingregulatorfor security, damage,leakageand correctoperation.Checkwiringfor attachment anddamage.
(55)
Inspectbleed air intercoolerfor cleanness and blockage. Check intercoolerinletand outletfor blockage, securityand leakageof duct couplings.
(56)
Inspectand check all enginewiringand ITT harness and connectorsfor securityand condition.
(57)
Lubricatepowerplantper LubricationChart.(Referto 12-10-00)
(58)
Install upper and lowerfirewallaccesscovers.
(59)
Installengine cowling.
Y:
EFFECTIVIT
040-999
5 20 00 PAGE
NOV1/90
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. ScheduledMaintenance(continued)
5. Event1 (continued)
(c) Left Wing,Detailed(Referto 57-00-00)
CAUTION: THE FLUXDETECTORCOVERON THEOUTBOARDWINGSURFACEIS SECUREDWITHBRASSSCREWS.ONLYBRASSSCREWSWILLBE USEDWHENINSTALLINGTHIS COVER.
(1)
Removeinspectionplatesandpanels.
(2)
Inspectstaticdischargewicksfor security of attachment andcondition.
(3)
Inspectflux detector plug connections and wiring for corrosion, securityandcondition.
(4)
Inspectwing and control surface skinsand fairings for cracks, loose or missingrivets and damage.
(5)
Inspectaileronfor securityof attachmentandfreedomof movement.
(6)
Inspectinterior structure for cracks, looseandmissingrivetsor concealed damage.
(7)
Inspectaileroncables,pulleysand bellcrank for damage,full travel,alignment, clearanceandpropercabletension.
(8)
Inspect aileron balanceweightsandailerongap seal for conditionandsecurity.
(9)
Inspectflaps, actuators, limitswitches,wiringandpotsforcorrosion,damage,operationand full travel.
°
NOTE: An approach flap extensionof 10 will not activatethe Flap/LandingGear WarningHorn since this flapsettingis intended forextendedapproachuse.
°
Normallandingsare madeusing30 flapsand the Flap/LandingGearWarning
Hornwill activate if the landinggear is not extendedwhenthe flapsare
extendedmorethan 10°.
(10)
Inspectflap tracks and rollersfor condition. Checkrollersfor freedom of movement andbinding.
(11)
Inspectflaptrackbolts and aileronhingeboltsfor wear,securityandcorrosion.
(12)
Inspectallcontrolsurfacebearingsfor attachment,wearandfreedomof movement.
(13)
Checkoperationof left fuel shutoffvalveand crossfeed valve.
(14)
Inspectwing attachmentboltsfor stripealignmentand bracketsfor cracks and corrosion.
(15)
Inspectenginemountbracketsfor conditionandsecurity.
(16)
Inspectbladderfuelcellsfor attachment, leaksandcontamination.
(17)
Inspectintegralfueltanksfor leaks,corrosion,contaminationanddamage.
(18)
Inspectfuellinesfor attachment,chafingand leaks.
(19)
Checkfiller neckanti-siphonvalvesandfuelcapsfor damageand properseal. Inspectquickdrainsfor proper operation.
(20)
Checkfueltanksfor correct operatingfuel. Checkconditionof fuel typeplacards.
(21)
Inspectfuel vents for obstructions anddamage. Checkvalvesfor operationand seal.
(22)
Inspectfuel capacityprobesfor security,corrosionandleaks.
(23)
Inspectelectricalwiringharnessandconnectionsforchafing,damageandsecurity.
(24)
Inspecthydrauliclinesforleaks,damageor chafing and attachment.
(25)
Inspectpneumaticlines,flexiblelinesandcomponentsfor leaks, cuts,abrasionsand secureconnections.Replaceuponconditionor per Special Inspection.
(26)
Inspectbleedairwarningductswitchesforleaksandsecurityandwiringfordamageand attachment.(Engine,intercoolerandwing root).
(27)
Inspectbleedairductcouplingfor leakage,damageandsecurity. Checkduct insulationfor condition and security.Checkductingfor security and chafing.
EFFECTIVITY:
040-999
PAGE 12 Nov1/90 5-20-00
PIPERAIRCRAFT
PA-42-720(AdvancedTrainer)
MAINTENANCEMANUAL
A. ScheduledMaintenance(continued)
5. Event1 (continued)
(c) Left Wing, Detailed(continued)
(28)Inspectpneumaticdeicerbootsfor condition and damage.
(29)Inspectlift transducer forsecurity of attachment,springcenteringof switch blade and corrosion.checkheat element for operation.
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