TEMPORARY REVISION - MD Helicopters

CSP−H−2MD Helicopters, Inc.500 Series − Basic HMIF. Pilot Compartment Floor Access DoorsEach of the two pilot’s compartment accessdoors are formed by two hinged aluminum orfiberglass panels, hinged at the forward edgeto the pilot’s compartment floor. A latch at therear secures each door in place. Two aluminumheel strips, on which two stainless steel skidsare bonded, are hinged and held in place overeach door by a spring. early type doors are asingle piece of fiberglass with heel stripsbonded in place and the forward ends of thestrips hinged to permit opening the doors.(1). Removal: Remove either floor accessdoor as follows.NOTE: The one−piece door is removed accordingto step (d).(a). Release the latch at the rear of thedoor.(b). Raise and hold up the rear of the heelstrips for access to the long hinge pinat forward end of door.NOTE: Heel strips may be removed for ease ofaccess by detaching springs from clips (orbrackets) on underside of strips and removinghinge pins attaching forward ends ofstrips to the anti−torque pedal mountingbracket.(c). Remove the long hinge pin securingforward edge of door to pilot’scompartment floor; remove door.(d). Remove one−piece access door byreleasing the flush−mounted latchand removing the two hinge pins thatsecure the door at the forward end.(2). Inspection:(a). Inspect doors for cracks and othervisible damage.(b). Check security of heel strip bonding.(c). As applicable, inspect hinges andhinge pins for damage.(3). Installation:(a). Position door and secure forwardedge to floor using a long hinge pin.(b). If removed, heel strips are reinstalledby inserting hinge pins throughbrackets on forward end of strip andantitorque pedal mounting bracketand connecting springs to clips orbrackets on underside of heel strips.Crimp or stake end of pins slightlyafter installation or use hinge pinssecured by a cotter pin as follows:1). Detach spring from clip or bracketon underside of each heel strip (notapplicable to early type one−piecepilot compartment floor accessdoor).2). Remove existing hinge pins securingforward end of heel strips.3). Install new hinge pins and secureend of each pin with washer andcotter pin. Direction of pinhead isoptional.4). Attach spring to clip or bracket onunderside of each heel strip, asapplicable.5). Check installation of new hingepins for discrepancies.(c). Position one−piece door and installhinge pins through hinges andantitorque pedal mounting bracket.G. Fuel Cell Access DoorsThe fuel cell access doors are stiffener−reinforcedaluminum plates that form a portion ofthe cargo floor. the left access door providesaccess to the fuel quantity transmitter (tankunit) and fuel shutoff valve and the fuel cellcover (for access to the engine start pump), aswell as the left fuel cell. A quick−release lockpin is secured with a 4 inch (10 cm) lanyard tothe outboard edge of each door. The pins retainthe removable jacking fittings that are used forjacking, parking and mooring the helicopter. Astud on the stiffener of current type doorsprovides an attachment point for floor cushionmaterial.These are stressed doors. TheCAUTIONhelicopter must never be flownwith either door removed.(1). Removal: Remove the 29 retainingscrews and washers and lift out door.Page 2−42TR09−001