TEMPORARY REVISION - MD Helicopters

CSP−H−2MD Helicopters, Inc.500 Series − Basic HMIJ. Engine Air Inlet Fairing Access DoorsAccess doors are provided on both the forwardand aft engine air inlet fairings. The right sideof the forward fairing contains the tail rotordrive shaft access door. The right side of theaft fairing contains a removable or hinge−mounted plenum chamber access door.(1). Removal: Remove screws and washersor release turnlock fasteners to take offdesired access door.(2). Inspection:(a). Inspect turnlock fasteners andreceptacles for proper fasteningaction.(b). Inspect fiberglass doors for structuraldamage such as cracked or frayedglass cloth surfaces.(c). Inspect the hinge−mounted door forstructural damage and loose ormissing latching mechanism hardware.(d). Check latching mechanism and doorhinges for proper operation andlocking capability.(e). Inspect seal installed around aftfairing door for security and condition.(3). Installation:Check that all areas of the airCAUTIONinlet and plenum chambers areclean and free of debris. check that all protectivecovers are removed. Engine damagewill result if these precautions are not observed.(a). Position door on fairing and installapplicable screws and washers orengage turnlock fasteners.(b). Close the hinge−mounted plenumchamber access door and ensure thatlocking mechanism locks in place.K. Aft Section Air Inlet (Tail Rotor Drive)Access DoorThe early type aft section air inlet (tail rotordrive) access door is hinge−mounted to the aftfuselage structure above the plenum chamberand is secured in place with turnlock fasteners.The current type access door is a flat coveron the mast support structure. Twelve screwssecure the access cover in place. When anengine air inlet vertical screen is installed, fiveof the cover screws with washers also retainthe front of the screen base. Primarily intendedfor access to the front end of the tailrotor shaft, the door/cover provides limitedaccess to the accessories mounted on the aftend of the main transmission.(1). Removal:(a). Remove engine air inlet forwardfairing.(b). Remove screws from cover or releaseturnlock fasteners to release door.(2). Inspection: Inspect turnlock fastenersand receptacles for proper fasteningaction. Inspect door for structuraldefects and door hinge for damage andoperation.(3). Installation:Check that all areas of the airCAUTIONinlet and plenum chamber areclean and free of debris. Check that all protectivecovers are removed. Engine damagewill result if these precautions are not observed.(a). Close access door and engage turnlockfasteners or position access coveron mast support structure and securewith screws (and five washers asapplicable to inlet screen).(b). Install engine air inlet forwardfairing.L. Controls Access Door and Foot SupportFairingsThe controls access door and the two footsupport fairings provide access to the forwardlanding gear struts and dampers, lowerelements of the underseal installation for theengine and flight control systems and portionsof the electrical wiring routed beneath thepilot’s seat structure. The foot fairings arefiberglass assemblies, each having two smallpolycarbonate plastic windows. the outboardwindows allow inspection of the forwardlanding gear damper assemblies without priorremoval of the fairings. The inboard windowsPage 2−44TR09−001