December, 1933 AIRCRAFT ENGINEERING 301 Instruction s to Aeroplane Owners and Ground Engineer s on Essential Modifications No . 44 of the year 1933 The Certificate of Airworthiness of an air aeroplanes, unless the modification has been craft affected by the above modification will be satisfactorily embodied. Particulars of the Inspection Leaflets and liable to suspension or cancellation if the amendments thereto for inclusion in A.P. 1208, After the introduction of the bracing to modification has not been incorporated within which have been issued subsequent to those Drawing No. M. 1963, th e curved Vee-bracing six months from the date of this Notice. listed in Notice t o Aircraft Owners and Ground tube s must be maintained in a state of sound Certificates of Airworthiness will not be re Engineers No. 13 of 1933, and up to and in repair and an y defects therein remedied immedi newed and Ground Engineers must not sign cluding September 30, 1933, are given here ately, to enable them to act as formers for the Daily Certificates for such aircraft after the under:— cabin roof. expiration of the aforementioned period unless Inspec- October 19, 1933. tion Date th e modification has been correctly embodied. Leaflet Subject of Rcmarks October 10, 1933. No. Issue No . 47 of the year 1933 116 Inspection of the Heat June Amended by (154) of Treatment of Dura- 1929 Amendment List No . 46 of the year 1933 A case has occurred in a Spartan aeroplane lumin No. 32 (issued where the fork end of a throttle control con Section (A) of Notice 53 of the year 1932 March, 1933). 43 Inspection of Metal Boat June New Issue intro- necting rod ha s jamme d on th e sides of a throttle (reproduced as paragraph (1) (g) of Notice Seaplane Hulls and 1933 duced by (160) of control lever. No. 14 of the year 1933) called for the cabin Floats Amendment List No. 34 (issued roof to be strengthened in accordance with On Spartan 3-scater Mk. I I aeroplanes, the June, 1933). drawing No. M. 1736, o r for an additional roof levers on the countershaft situated on the 111 The Glueing of structu- June Do. rally important parts 1933 bracing to drawing No. M. 1963, issued by Th e fireproof bulkhead, should be reduced in thick- of Aircraft de Havilland Aircraft Company, Ltd., to be ness, on the washer side, to 0.104 in. On 112 Inspection of Flexible June Do. Steel Wire Rope 1933 fitted on all D.H.80A, Puss Moth, aeroplanes Sparta n Arrow aeroplanes, the lever should be 138 Inspection of white metal- June Do. having the original type of curved Vee-bracing reduced in thickness to 0.104 in. over the area ling of Aero Engine 1933 Hearings tube . of travel of the connecting rod fork end, care 122 Standard Colour Scheme June Amended by (167) of being taken to ensure a gradual change of A case has occurred in which the deeper 1933 Amendment List No. 34 (issued section outside that area. Details of the section curved Vee-bracing tubes in the cabin June, 1933). modification to the Arrow are shown on roof to drawing No. M. 1736 have failed, and October 4, 1933. Drawing No. G.E. 47/1933, which can be ob Puss Moth aircraft fitted with these deeper tained from the Spartan Aircraft, Ltd., East section members are to be examined immedi No . 45 of the year 1933 Cowes, Isle of Wight. ately for signs of cracking cither in the roof- Cases have occurred where the telescopic members themselves, or in th e to p longerons in All the levers referred to above are to be tubes of chassis compression legs on Spartan th e neighbourhood of the front spar attach examined immediately and rectified as in and Spartan Arrow aeroplanes have been ments. These deeper section tubes are 1.4 in. dicated and, in the case of the Arrow, on the scored owing to insufficient lubrication of these deep and may be identified by direct measure drawing quoted. parts. ment. If no defects are found, the examin If the levers and fork ends are found jammed ation should be repeated at intervals, more and rusted, they are to be removed and new- A modification (No. 898) has now been intro particularly after the aeroplane has suffered part s fitted. duced embodying a greasing nipple in th e lower severe loads in landing or taxying. If any I t is considered advisable that all working casting (Part No. 313) t o facilitate lubrication. defect is found, no further flying is to be car joints in the engine control system be lubricated Full details of this modification are shown on ried out until all defects have been repaired a t least once per week. Drawing No. G.E. 45/1933, copies of which and additional cabin roof bracing to drawing The Certificate of Airworthiness of an aircraft can be obtained on application to Messrs. No. M. 1963, obtainable from The de Havilland affected by the above modification shall be Spartan Aircraft Co., Eas t Cowes, Isle of Wight. Aircraft Company, Ltd., has been fitted. liable to suspension or cancellation if the Aircraft bearing a constructor's number 107 modification has not been incorporated within The additional roof bracing shown in drawing and onwards include this modification, and No. M. 1963 must, in any event, be embodied 14 days from the date of this Notice. Certifi further action beyond normal maintenance is within four months from the dat e of this notice. cates of Airworthiness will not be renewed, and not required in th e case of such aircraft. After the expiration of this period, Certificates ground engineers must not sign Daily Certifi Aircraft bearing serial numbers earlier than of Airworthiness of aeroplanes affected will be cates in respect of such aircraft after the afore those quoted in th e preceding paragraph are to liable to suspension or cancellation and will mentioned period unless the modification has have the above modification embodied with no t be renewed, and ground engineers must been correctly embodied. October 23, 1933. the least possible delay. not sign daily certificates in respect of such
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Dec 1, 1933
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