FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT

The following entry is added to the Powerplant Instrument Markings Table: Power plant markings and their color-code significance. RED LINE GREEN ARC RED LINE INSTRUMENT (MINIMUM) (NORMAL (MAX) OPERATING) Auxiliary E Fuel Tank Quantity (0.5 U.S. Gal. Indicators Unusable Each Tank) --- ----- 4. Weight Limits No change. Refer to current weight and balance documents. 5. Center of Gravity Limits No change 6. Maneuver Limits No change 7. Flight Load Factor Limits No change 8. Kinds of Operations Limits No change FAA Approved Date: _ pg 5 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 9. Fuel Limitations AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks Fuel capacity is increased to the values in Tables 1-2 and 1-3 below: Table 1-2 FUEL CAPACITY, U.S. GALLONS 172 I CESSNA MODELS :;; ~ « 0 ::.: (9 UJ (J) a. ..i u- N N Cl: N ri a en N I'- I'- N I'- Z ::.:: UJ I'- ~ ~ I'- ~ - 0 ~ a. Cl: ~ Cl: t5 Total Capacity 80 78 66 66 63 66 66 76 76 90 76 Total Usable 76 73 63 61 59 62 60 65 72 85 69 Total Capacity. Each Main Tank 28 27 21 21 19.5 21 21 26 26 33 26 Total Usable. Each Main Tank 26.5 25 20 19 18 19.5 18.5 21.3 24.5 31 23 Total Capacity. Each Aux Tank 12 12 12 12 12 12 12 12 12 12 12 Total Usable. Each Aux Tank 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 Table 1-3 FUEL CAPACITY, U.S. GALLONS 175 F172 (REIMS) FR172 170 (REIMS) CESSNA MODELS « u I :;; (9...., « co If) en a,. I'- If) If) If) <.9 ..i u:- ::.: a a ~ I'- I'- I'- u: ,s: z . I. I'- I'- ~ ~ ~ UJ ~ ~ Total Capacity 76 76 76 76 63 66 67 76 76 42 42 Total Usable 66 65 65 65 59 61 63 69 72 37 37 Total Capacity. Each Main Tank 26 26 26 26 19.5 21 21.5 26 26 21 21 Total Usable, Each Main Tank 21.5 21 21 20.7 18 19 20 23 24.5 18.5 18.5 Total Capacity, Each Aux Tank 12 12 12 12 12 12 12 12 12 12 12 Total Usable, Each Aux Tank 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 11.5 9.1 Auxiliary Fuel Tank Transfer Limits • When feeding from either or both main tanks, do not transfer auxiliary tank fuel into a main fuel tank until it is at least 15.0 gallons below full. • When feeding from either main tank, begin tank transfer into that tank before its level drops below five gallons remaining. • Do not transfer auxiliary fuel unless in level flight. FAA Approved Date: _ pg 6 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks "Right wing aux fuel 12.0 U.S. gallons 11.5 gallons usable ON OFF" • Do not transfer auxiliary fuel during take off, landing, refueling, and when empty. Note: Main fuel tank quantity below the full level can be determined by reference to fuel quantity gauges and by calculating fuel used by: 1) Estimating engine fuel flow rates versus time. 2) If installed, using engine fuel flow rate indicator vs. time. 10. Placards The following information is displayed in the form of composite or individual placards. 10.1 In full view of pilot: "Total aux fuel 24 U.S. gals (23 gal useable)." Transfer aux fuel only in level flight when main is half empty and when main tank is not supplying engine. Aux fuel switch must be off during takeoff, landing, filling and when empty. For utility category operation aux tank fuel switch must be off and aux tanks empty." 10.2 At auxiliary fuel tank pump switches: "Left wing aux fuel 12.0 U.S. gallons 11.5 gallons usable ON OFF" 10.3 Installed adjacent to each auxiliary fuel tank leak detection drain (2 per side) "Fuel or vapor from drain requires immediate repairs" 10.4 Installed adjacent to appropriate wing tip tank pump circuit breakers or fuses: "Aux tank L pump" Aux tank R pump" 10.5 For Models 172 through models 172M, F172F through F172M, and Models 170A and 1708; forward of each auxiliary tank filler: "12 U.S. gal. 80/87 min. grade Av. gasoline. Aux. fuel switch must be off before filling." 10.6 For Models 172N (SIN 17261445, 17267585-17259309) and F172N, F172P, FR172E through FR172J, FR172K(1977 model), R172E, R172K (SIN R1722000-1722794); forward of each auxiliary tank filler: "12 U.S. gal. 100/130 min. grade Av. Gasoline. Aux. fuel switch must be off before filling." 10.7 For Models 172N (SIN 17261578,17269310-17274009), 172P, 172Q, 172R, 172S, R172K (SIN R1722725 and on), 172RG, FR172K (1978 model on); forward of each auxiliary tank filler: "12 U.S. gal. 100LLl100 min. grade Av. gasoline. Aux. fuel switch must be off before filling." FAA Approved Date: _ pg 7 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks SECTION III - EMERGENCY PROCEDURES NOTE With Flint Aero, Inc. Auxiliary Fuel Tanks installed, fuel transfer to the standard main wing tanks is provided by the auxiliary fuel transfer tank pumps controlled by the auxiliary fuel tank transfer pump switches. EMERGENCY LANDING WITH OR WITHOUT ENGINE POWER Auxiliary Fuel Tank transfer pump switches.....OFF. WING FIRE Auxiliary Fuel Tank transfer pump switches..... OFF. SECTION IV - NORMAL PROCEDURES PREFLIGHT INSPECTION -AUXILIARY FUEL TRANSFER TANKS 1. Visually inspect external areas of wing around auxiliary fuel tanks for any signs of fuel leakage. 2. Check each auxiliary tank filler cap for security and vent lines for obstructions. Visually check auxiliary fuel tanks for quantity. 3. From each auxiliary fuel tank, drain a sample quantity of fuel. Check for contamination. If any water is visible, drain additional amounts of fuel until all water is expelled from the tank. 4. Master switch on. Check auxiliary fuel tank gauges for fuel quantity. 5. With master switch on, check each auxiliary fuel tank pump for operation by operating each pump separately with auxiliary fuel tank transfer switches. Listen for pump operation. If no noise or vibration, assume pump is not operating. Check for serviceability. Before Takeoff a. Add the following to the before takeoff procedure: Auxiliary fuel tank transfer pump switches OFF FAA Approved Date: _ pg 8 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks SECTION V - PERFORMANCE This performance data address the operation of an airplane incorporating Flint Aero STC SA1614WE Auxiliary Tanks. There are no changes to the Performance Section except for the Range and Endurance charts. RANGE AND ENDURANCE PROFILES With the Flint Aero auxiliary fuel tanks installed, the Cessna 170, 172, 175 series airplanes, cruise performance charts are valid for the usable fuel quantity as stated in the basic manual. The addition of two full 12.0 U.S. Gallons (11.5 gal. usable) Flint Aero auxiliary tanks increases the range and endurance shown in the Cessna Owner's Manuals and Pilot's Operating Handbook and FAA Approved Airplane Flight Manuals. The amount of increase in range and endurance will depend on the cruise speed, altitude, and power setting chosen, and will be different for each powerplant and airplane model. The increase in range and endurance of the added fuel can be calculated from the cruise speed and fuel consumption of each model at the altitude and temperature desired. The new airplane range and endurance can then be found by adding the range and endurance increases to the values tabulated in the Cessna manuals. To calculate the range increase, find the True Airspeed and GallHr fuel consumption for the cruise altitude and power setting desired. Calculate the cruise Miles per Gallon by dividing the Airspeed by the fuel consumption in gallons per mile: Miles / Hr + Gal / Hr =Miles / Gal. Then multiply the miles per gallon by 23 gallons, the usable fuel contained in the auxiliary tanks to obtain the added range. Add this value to the range tabulated in the original Cessna manual to get the new range with the Flint Aero auxiliary tanks installed and filled. To calculate the endurance increase, divide 23 gallons by the fuel consumption: 23 Gallons + Gallons / Hr = Hrs Endurance. Add this number of hours to the endurance tabulated in the original Cessna manual to get the new endurance with the Flint Aero auxiliary tanks. FAA Approved Date: _ pg 9 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks SECTION VI- WEIGHT AND BALANCE/EQUIPMENT LIST ITEM EQUIPMENT LIST DESCRIPTION REF WEIGHT ARM MOMENT NO DRAWING Ibs. inches lb.-in. J. SPECIAL PACKAGES 2,3 Install Flint Aero Aux Fuel Tank FA17D 34.0 49.0 1666 Systems 2 - Unusable fuel in Flint Aero Auxiliary Tanks (1.0 U.S. Gal. Avgas at 6.00 FA170 6.0 50.0 300 Ibs.lU.S.gal.) TOTAL INSTALLATION NET CHANGE 40.0 49.2 1966 In calculating weight and balance for full auxiliary fuel tank: 23 U.S. gal. Avgas usable x 6.0 Ibs.lU.S. gal. x 48 in. arm =6624 lb.-in. or 6.624Ib.-in.l1000. C.G. Arm =total moment divided by total weight. CENTER-OF-GRAVITY Center of Gravity range, loading moments, and limits are unchanged. The load moment diagram for the auxiliary fuel tanks is shown below: 30 r------------r-----~__. LOADING GRAPH FOR FLINT AERO AUXILIARY TANKS Example: 24 Gal x 6.0 Ib/gal = 144 lb. 144 Ibs x 48 in. =6912 in-Ib moment 0k::::__-.2::=::::::=::;:=:::::::::::::::::::::::::::::::::::::::::::::~ 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 ~O MomentJ1000 (inch-pounds) FAA Approved Date: _ pg 10 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero, Inc. STC SA1614WE Auxiliary Fuel Tanks SECTION VII- AIRPLANE & SYSTEMS DESCRIPTIONS 1. Fuel Tank Capacities (U.S.Galions) The Cessna 170, 172, 175 series airplanes have a wide range of fuel capacities. The total and usable fuel quantities for each model are shown in the Owner's Manual or in the Official Pilot's Operating Handbook and FAA Approved Airplane Flight Manual. The Flint Aero Auxiliary Fuel Tanks contain 24 total gallons and 23 usable gallons for all Cessna 170, 172, and 175 series airplanes. 2. Operation of Auxiliary Fuel Tanks (transfer) o To transfer, turn applicable "auxiliary fuel tank transfer switch" on. When auxiliary tanks indicate empty, turn applicable transfer switch off. o As a general procedure, do not transfer auxiliary tank fuel until after burning approximately 15 U.S. gallons of fuel from each main tank. NOTE: Should the transfer pump fail, it is not possible to transfer fuel from the affected tank in flight. 3. Electrical Left and right auxiliary fuel transfer tank quantity gauges and pump switches are located on sub panels in left and right wing roots or on the instrument panel or pedestal. The transfer pumps and gauges are powered from the main electrical bus through in-line fuses. 4. Fuel Quantity Data (U.S. Gallons) Add 23 U.S. gallons additional usable fuel to the total fuel available in the Cessna tanks. In addition to the Cessna main fuel tanks, two auxiliary fuel transfer tanks are installed. The capacity is 12.0 U.S. gallons each tank (11.5 usable U.S. gallons each). These tanks transfer to their respective main wing tank by transfer pumps controlled by switches in the cockpit. Each auxiliary tank has a water drain and is vented through the fuel filler cap. Fuel gauging is through either individual quantity gauges or a dual gauge. NOTES The auxiliary fuel (transfer) tank quantity gauges are similar in operation to the main fuel tank gauges and visual inspection of the tanks during preflight is the best assurance of fuel quantities. There are no provisions for visually determining reduced tank quantity. FAA Approved Date: _ pg 11 of 12 FLINT AERO, INC. 1942 Joe Crosson Drive EI Cajon, CA 92020 Doc No.: FTC453.001 AFMS for Cessna Model 170, 172, 175 series with Flint Aero,lnc. STC SA1614WE Auxiliary Fuel Tanks The fuel in the auxiliary fuel transfer tanks is available to the engine only through the airplane's main fuel tanks. The main fuel tank gauges are the sole reference gauges for immediately available engine fuel. Should an auxiliary fuel (transfer) tank pump fail, it is not possible to transfer fuel from the affected tank during the flight in progress and the pilot must immediately adjust his range and endurance calculations on the basis of the fuel available through the standard fuel system. SECTION VIII - AIRPLANE HANDLING, SERVICE AND MAINTENANCE WITH AUXILIARY (TRANSFER) FUEL NOTE Before flight, check through the filler neck for auxiliary tank fuel quantity. No provision is made for calculating reduced capacity fuel in the auxiliary fuel tanks. FAA Approved Date: _ pg 12 of 12