181 Hydraulic hose assembliesTSO-C75. Applicability. Minimum performstandards are hereby established ydraulic hose assemblies which are used on U.S. civil transport category aft. New models of hydraulic hose iblies, manufactured on or after the ive date of this section, which are used on U.S. civil transport cateaircraft shall meet the standards fied in Federal Aviation Adminis›n Standard, "Hydraulic Hose Aslies", dated December 15, 1962.1 aulic hose assemblies approved to the effective date of this section continue to be manufactured under rovisions of their prior approval. Marking. Articles shall be marked cordance with the requirements of (d) with the following exceptions: Trademark may be used in lieu of , and manufacturer's address is not red; Size, type, and maximum operating ure of the hose assembly shall be n in lieu of the weight in paragraph 3) of § 37.7; Part number shall be shown; Date of manufacture in terms of ch and year is to be shown and serial ber omitted; › In lieu of paragraph (d)(2) of 7 hose assemblies suitable for use synthetic base fluids shall be marked the letter "S" immediately followthe type designation. Assemblies ible for use with petroleum base s shall be marked with the letter Assemblies suitable for use with synthetic and petroleum base fluids I be marked with "S/P", i.e., Type -S, Type II-B-P, or Type II-B-S/P; ) Hose assemblies complying with fire resistant requirements shall be tified by the letter "F" immediately wing the type and fluid designation, Type II-B-S/P-F. ) Data requirements. In accordwith the provisions of § 37.5, the ufacturer shall furnish to the Chief, ineering and Manufacturing Branch, ht Standards Division, Federal Avia Administration, in the region in ch the manufacturer is located, six es of the following technical data: Copies may be obtained upon request essed to Library Services Division, 630, Federal Aviation Administration, hington, D.C. 20553. (1) Type; (2) Size; (3) Maximum operating pressure; (5) Installation instructions and limitations, if any. (d) Effective date. September 4, 1963. [Doc. No. 5065, 29 F.R. 15317, Nov. 17, 1964, as amended by Doc. No. 8084, 32 F.R. 5769, Apr. 11, 1967] § 37.182 Fuel drain valves-TSO-C76. (a) Applicability. Minimum performance standards are hereby established for fuel drain valves to be used in civil aircraft of the United States. New models of fuel drain valves manufactured on or after the effective date of this section shall meet the standards specified in the Federal Aviation Administration Standards, "Fuel Drain Valves", dated October 1, 1962.1 (b) Marking. Articles shall be marked in accordance with the requirements of § 37.7 (d) except that: (1) The size shall be shown in lieu of the weight required by § 37.7(d) (3); and (2) Parts too small to contain all the required information shall be marked with the TSO number and the manufacturer's name or identifying mark. For such parts, the other marking data required by § 37.7(d) shall be placed on the shipping container of the part. (c) Data requirements. In addition to the data specified in § 37.5 the manufacturer shall furnish to the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Federal Aviation Administration, in the region in which the manufacturer is located, the following technical data: (1) Six copies of an instruction manual describing the product and supplying information on maintenance, overhaul, and installation. (2) One copy of the manufacturer's test report. [Doc. No. 5065, 29 F.R. 15317, Nov. 17, 1964, as amended by Doc. No. 8084, 32 F.R. 5769, Apr. 11, 1967] § 37.183 Gas turbine auxiliary power units TSO-C77. Minimum (a) Applicability. performance standards are hereby established for gas turbine auxiliary power units for use on civil aircraft of the United States. New models of gas turbine auxiliary power units manufactured for use on civil aircraft on or after the effective date of this section shall meet the standards specified in the Federal Aviation Administration Standard, "Gas Turbine Auxiliary Power Units", dated January 3, 1963.1 (b) Marking. Articles shall be marked in accordance with the requirements of § 37.7(d) except that the weight need only be shown to the nearest pound. In addition, the following shall also be shown: (1) Maximum rated speeds and temperature; (2) Maximum allowable speeds and temperature; (3) Maximum rated output; (4) Category and class of service; (5) Fuel grade and specification; and (6) Lubricating oil grade and specification. (c) Data requirements. In accordance with the provisions of § 37.5, the manufacturer shall furnish to the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Federal Aviation Administration, in the region in which the manufacturer is located, the following technical data: (1) Instruction manual containing instructions for the installation, operation, servicing maintenance, repair, and overhaul of the unit. (2) Model specification. [Doc. No. 5065, 29 F.R. 15317, Nov. 17, 1964, as amended by Doc. No. 8084, 32 F.R. 5769, Apr. 11, 1967] § 37.184 Crewmember demand oxygen masks-TSO-C78. (a) Applicability. This TSO prescribes the minimum performance standards that aircraft crewmember demand oxygen masks must meet in order to be identified with the applicable TSO marking. New models of demand oxygen masks that are to be so identified and that are manufactured on or after February 10, 1967, must meet the requirements of the following "Federal Aviation Administration Standard, Crewmember Demand Oxygen Masks." (b) Marking. Each oxygen mask manufactured in accordance with the provisions of this section must be marked (1) To indicate whether it is a "nonpressure demand" or a "pressure demand" mask; (2) To indicate the maximum environmental (cabin) altitude for which it is qualified; and (3) As specified in § 37.7, except the markings need not include the s number, the weight, or the date of ufacture. In acc (c) Data requirements. ance with § 37.5, the manufacturer furnish to the Chief, Engineering Manufacturing Branch, Flight Stand Division, Federal Aviation Adminis tion, in the region in which the ma facturer is located, the following t nical data: (1) Seven sets of manufacturer's erating instructions and equipment itations. (2) Seven sets of installation pr dures with applicable drawings specifications, limitations, restricti and other conditions pertinent to ins lation. (3) One copy of the manufactu test report. (4) One copy of the manufactu maintenance instructions, inclu cleaning and sterilizing procedures. (d) Previously approved equipm Crewmember demand oxygen masks proved prior to February 10, 1967, continue to be manufactured under provisions of the original approval. FEDERAL AVIATION ADMINISTRATION STAN CREWMEMBER DEMAND OXYGEN MASKS 1.0 Purpose. This Standard Cont minimum performance standards for manufacture of demand type oxygen m for use with nonpressure demand (strai demand and diluter-demand) and press demand oxygen systems. 2.0 Design and construction of mask be eligible for approval under a Tech Standard Order authorization, the ox mask must possess the following design construction characteristics. 2.1 Masks designed for use with a motely located oxygen flow regulator include a flexible oxygen supply tube fix detachable at the mask or at the regu or at both. Oxygen supply tubes use conjunction with mask-mounted flow regulators are not subject to this graph. ΟΙ 2.2 The mask must be designed for piration through the nose and mouth nasal). The mask may also include gral goggles designed to protect the eyes smoke and harmful gases (fullface). 2.3 The mask must be constructe materials that (a) Do not contaminate air or oxyg (b) Are not adversely affected by con ous contact with oxygen; and (c) Are at least flame resistant. The mask must be designed to preche accumulation of hazardous quantif expiratory gases within the facepiece ber. The mask must be designed to prethe formation or accumulation of frost would interfere with the function of thalation valve, unless it can be shown the frost can be removed by external ulation without removing the mask the face of the user. The fullface mask must be designed lude means for the prevention or the 'al of condensation from the inside surof the goggle lenses. Masks equipped with oxygen supply designed for quick disconnection at ask or at the regulator must incorpomeans to alert the user when his oxygen y tube has become disconnected. Such s must not restrict the flow of ambient rough the oxygen supply tube by an nt exceeding 25 percent. This section not apply if the quick disconnect deincorporates means to prevent inadit separation. Performance. Five masks of each for which approval is sought must be 1 to comply with the minimum pernce standards set forth in paragraphs rough 3.12, except that only one mask ch kind is required to comply with the sions of paragraphs 3.6, 3.8, 3.9, and Tests must be conducted at ambient spheric conditions of approximately ig. and 70° F., except as otherwise speciGas flow rates and pressures must be cted to STPD. Quick-disconnect coupling. The required to separate quick-disconnect lings not designed to prevent inadnt separation must not be less than 10 ds exerted along the axis of symmetry of xygen supply tube. Strength. (a) The mask must be ble of sustaining a pull force on the ension device attachment fittings of less than 35 pounds in any direction period of not less than 3 seconds. The oxygen supply tube assembly must ipable of sustaining a pull force of not than 30 pounds exerted along the axis mmetry of the tube for a period of not han 3 seconds. The oxygen supply tube assembly must apable of sustaining an internal presof 1.5 p.s.i.g. Leakage. (a) The total inward leakrate, with the complete mask positioned he face or on a suitable test stand in a ner which simulates normal use, must exceed 0.10 LPM, STPD, at any negative rential pressure within the range of from to 6.0 inches of water. ) Inhalation valves installed in pres-demand masks must not backleak more 1 0.015 LPM, STPD, when subjected to a ion pressure differential of 0.1" H2O and more than 0.15 LPM, STPD, when subed to a suction pressure differential of 'H,O. valve 3.5 Pressure-demand exhalation performance. The exhalation valve installed in a pressure-demand mask must open when the pressure within the facepiece is 20 mm. Hg. and the pressure in the supply tube is 15 to 19.9 mm. Hg. 3.6 Vibration. The flow of gases during the respiratory process must not cause vibration, flutter, or chatter which would interfere with the satisfactory operation of the mask. 3.7 Acceleration load. The exhalation valve must not inadvertently operate under a 3g. load applied in any direction. 3.8 Extreme temperature. The mask must comply with paragraphs 3.3 through 3.5 in an ambient temperature of 70° F. within 15 minutes after being stored at a temperature of 160° F. for 12 hours, and within 15 minutes after being stored at 0° F. for 2 hours. The relative humidity during storage must vary from 5 to 95 percent. The mask facepiece must not be gummy or sticky and must provide a normal seal after the high temperature exposure. 3.9 Low temperature test delay. (a) The mask must function properly, without apparent delay, at a temperature of 70° F. after being stored at a temperature of 20° F. for not less than 2 hours. (b) The mask must function properly, without apparent delay, and continue for a period of not less than 15 minutes when tested at a temperature of 20° F. after being stored at a temperature of 70° F. for not less than 12 hours. 3.10 Decompression. (a) A mask not equipped with a pressure relief valve must not suffer damage and must comply with paragraphs 3.3 through 3.5 after being subjected to a decrease in ambient pressure from 12 p.s.i.a. to not less than 2.7 p.s.i.a. for a straight or diluter-demand kind, or to not less than 2.1 p.s.i.a. for a pressure-demand kind, within a period of not more than 1 second. This decompression test must simulate the condition that would be imposed on a mask being worn by a crewmember during the specified decompression. (b) A mask equipped with a pressure relief valve must be subjected to the decompression specified in subparagraph (a) of this section during which the pressure relief valve must open at a differential pressure of 17" H2O and must relieve the differential pressure to a value not exceeding 16" H2O within 5 seconds. During the 5-second interval, the pressure differential must not exceed a value of 20'' H2O. The pressure relief value must close at a differential pressure of 14" H2O. 3.11 Cycling. The mask must comply with paragraphs 3.3 through 3.5 after being subjected to the following simulated breathing schedule for a total of 50,000 cycles: A constant time interval must be maintained between respiratory cycles. 3.12 Microphone. If the mask is designed to include a microphone, the installation of the microphone must not interfere with the operation of the mask. 4.0 Quality control 4.1 Production tests. Each mask must be shown to comply with the provisions of paragraph 3.3 (a), total leakage. 4.2 Random tests. One mask must be selected at random from each lot and must be shown to comply with paragraphs 3.1 through 3.12. The lot size must be selected by the applicant subject to the approval of the Federal Aviation Agency (see FAR § 37.5), on the basis of evaluation of the applicant's quality control systems (see § 37.5(a) (3)). 5.0 Maximum environmental (cabin) altitude. The minimum pressure to which the mask has been shown to decompress satisfactorily in accordance with paragraph 3.10 (a) or (b) of this standard determines the maximum environmental altitude of the mask, except that it shall not exceed the value shown in the following table: Tidal volume: Volume of air inspired [Amdt. 37-9, 32 F.R. 129, Jan. 7, 1967 § 37.185 Fire detectors (radiation (a) Applicability. Minimum formance standards are hereby est lished for radiation sensing type detectors which are for use on both ton and turbine engine-powered aircraft of the United States. New m els of fire detectors (radiation sens type) manufactured on or after the fective date of this section, which to be used on civil aircraft of the Uni States, shall meet the standards sp fied in Federal Aviation Administra Standard, "Fire Detectors (Radia Sensing Type)", dated May 15, 1963. (b) Marking. In lieu of the we required in § 37.7 (d) (3), the operat voltage for the detector shall be sho Compliance of the detector with the ton or turbine engine requirements both, shall be designated by -P, -T -PT, respectively, as a suffix follow the technical standard order desig tion as TSO-C79-P. (c) Data requirements. (1) In cordance with the provisions of §3 the manufacturer shall furnish to Chief, Engineering and Manufactur Branch, Flight Standards Division, F eral Aviation Administration, in region in which the manufacturer is cated, the following technical data: (i) Six copies of the manufactur operating instructions and equipm limitations; (ii) Six copies of the installation p cedures with applicable schematic dra ings, wiring diagrams, and specificatio indicating any limitations, restrictio or other conditions pertinent to ins lation; and (iii) One copy of the manufactur test report. (2) The data required under subpa graph (1) (i) and (ii) of this paragra shall include the following: (i) Cone of vision expressed in grees (apex of the cone is to be at center of the sensor and the axis of cone is to be at right angles to the f of the sensor). (ii) Maximum effective range at f extremities; (iii) Maximum allowable normal a bient temperature at the point of tector location; |