Descent to Tampa — Fuel Selector Discipline
Engine power loss from fuel mismanagement in a single-tank trainer over dense development — the decision window is tight
The scenario
Departing Tampa International Airport (KTPA), Tampa, FL — Runway 19R, descending through 3,500 ft MSL on a straight-in approach to Runway 01L. Elevation 26 ft MSL. The field is in Class B airspace; TRACON is active and has cleared you for the approach. Visibility 10 SM, scattered clouds at 4,000 ft, light winds from 180°. A typical Florida afternoon — clear, calm, and busy.
You are 8 nm from the runway, descending at 500 fpm, airspeed 90 KIAS. The engine is running smoothly. You have been in the air for 2 hours 15 minutes on a local training flight — a cross-country hop to a nearby field and back. Fuel consumption has been normal: roughly 5.5 gal/hr at cruise power. You planned for 3 hours of flight time and topped off the single fuel tank (27 gallons usable) before departure.
Aircraft: Diamond DA20-C1, solo, within weight and balance limits. Continental IO-240-B fuel-injected engine, fixed-pitch prop, fixed gear, single fuel tank with ON/OFF selector. Steam panel (vacuum-driven attitude indicator, turn coordinator). The fuel selector is a simple ON/OFF valve — there is no left/right tank selection, no crossfeed, no fuel pump. Fuel flows by gravity from the single tank to the engine.
Pilot: you — a Private pilot, current, roughly 180 hours total. You are familiar with the DA20 from your training; this is your second solo cross-country in this airplane. You did a thorough preflight and confirmed fuel quantity visually in the tank — you estimated roughly 18–20 gallons remaining after 2 hours 15 minutes of flight. You did not write down the exact fuel quantity or calculate the remaining endurance. You did not lean the mixture during cruise — the engine was running smoothly at 2,500 rpm and you saw no reason to adjust it.
KTPA is a busy Class B airport with three parallel runways (19L/01R, 19R/01L, 10/28). You have trained here before but have not landed here in several weeks. TRACON has vectored you to a straight-in approach to Runway 01L. The descent is stable and on-speed.
- {'label': 'Field', 'value': 'KTPA · Tampa'}
- {'label': 'Runways', 'value': '10/28 · 19L/01R · 19R/01L'}
- {'label': 'Elevation', 'value': '26 ft'}
- {'label': 'Aircraft', 'value': 'DA20'}
- {'label': 'Dominant phase', 'value': 'Landing / Takeoff'}
The decision
Before we get into the decision tree — what do you know about fuel management in the DA20-C1? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB WPR24LA167 (2024): A Canadian Car & Foundry Harvard MK IV lost all engine power due to fuel starvation when the pilot improperly selected the left fuel tank at low fuel levels. The accident resulted from improper fuel tank selection and a malfunctioning fuel selector, requiring a forced landing that struck a dirt berm. The probable cause was the pilot's failure to properly manage fuel tank selection and the aircraft's fuel selector malfunction.
NTSB GAA19CA534 (2019): A Piper PA-28 lost engine power during descent to land after the pilot switched to the left fuel tank and failed to follow the emergency power loss checklist. The accident resulted from improper fuel management and failure to switch to the right tank containing usable fuel, leading to fuel starvation and a forced landing on a road. The pilot did not systematically troubleshoot the fuel system.
NTSB WPR12LA023 (2011): A Cessna 185 lost engine power during descent near Bend, Oregon, when the pilot inadvertently left the fuel selector on the left tank despite having usable fuel in the right tank. The pilot executed a forced landing on an unpaved road and the aircraft nosed over during rollout. The probable cause was the pilot's failure to maintain proper fuel selector discipline.
NTSB CEN25LA081 (2025): A Piper PA-24 on a ferry flight lost engine power during approach due to fuel starvation after the pilots mismanaged fuel by not leaning the mixture and incorrectly switching fuel tanks. The accident resulted from inadequate fuel management and was compounded by maintenance issues with the mixture control system.
The DA20-C1 differs from these multi-tank airplanes: it has a SINGLE fuel tank with an ON/OFF selector. Fuel starvation in the DA20 comes from running the tank dry (exhaustion), not from selector mismanagement. However, the fuel selector can still be accidentally turned OFF — either during preflight, during flight, or by a passenger. The scenario above is localized to KTPA and the DA20-C1, but the lesson is universal: know your fuel system, verify the fuel selector position before flight, and check it immediately if the engine loses power.
Off all runway ends at KTPA, the off-field environment is dense development, medium development, or open developed areas — parks, parking lots, roads. There is no open field or water. A forced landing in dense development is survivable only if you find a road, parking lot, or park. The alternative — impact with buildings or trees — is not survivable. This scenario emphasizes the critical importance of fuel management discipline: a simple check of the fuel selector during the power loss would have restored the engine and avoided the forced landing entirely.
The real accidents cited above occurred at other airports and in other aircraft — NOT at Tampa International. KTPA has its own accident history (see field dominant patterns: FORCED_LANDING 22.2%, LOSS_OF_CONTROL_INFLIGHT 11.1%), but these specific events happened elsewhere. The scenario is localized to KTPA to make the off-field environment real and consequential for you as a student here.
Key lesson — In the DA20-C1, the fuel selector is a simple ON/OFF valve controlling a single tank. Fuel starvation comes from running the tank dry or from the selector being in the OFF position. At the first sign of engine power loss, check the fuel selector immediately — it takes 5 seconds and can restore the engine. At KTPA, all off-field environments are dense development; a forced landing is survivable only if you find a road or open area. Fuel management discipline — knowing your fuel quantity, planning your endurance, and verifying the selector position — is the entire lesson.
Debrief — teaching points
The DA20-C1 has a single fuel tank with an ON/OFF selector — not left/right tank management.
Unlike Cessnas (BOTH selector) or Pipers (L/R/OFF selector), the DA20-C1 has a single tank and a simple ON/OFF valve. Fuel flows by gravity from the tank to the engine when the selector is ON. There is no crossfeed, no fuel pump, no left/right management. Fuel starvation in the DA20 comes from running the tank dry (exhaustion) or from the selector being in the OFF position. Know this system cold.
At the first sign of engine power loss, check the fuel selector immediately.
Total engine power loss at altitude is rare in a fuel-injected Continental IO-240 with no carburetor ice risk. The most likely cause is fuel starvation — either exhaustion or the selector in the OFF position. Before assuming mechanical failure, check the fuel selector. It takes 5 seconds. If it is OFF, switch it to ON. The engine will restart after a 3–5 second delay as fuel flows from the tank. This single check can prevent a forced landing.
Preflight fuel management: know your quantity, plan your endurance, and verify the selector position.
The DA20-C1 has 27 gallons usable fuel. At 5.5 gal/hr cruise consumption, that is roughly 4.9 hours of endurance. Before flight, visually confirm fuel quantity in the tank (not just the gauge — look at the tank itself). Calculate your planned endurance for the flight. Verify the fuel selector is in the ON position before engine start. During flight, monitor fuel consumption and plan your descent to ensure you reach the destination with adequate reserves (typically 30 minutes for VFR).
Lean the mixture at altitude to extend endurance and improve efficiency.
The DA20-C1's Continental IO-240-B is fuel-injected; there is no carburetor heat. At altitude (above 3,000 ft), lean the mixture to reduce fuel consumption. A lean mixture improves engine efficiency and extends endurance. At 3,500 ft or above, leaning is appropriate and expected. At sea level or low altitude, run the mixture full rich for maximum power.
Best glide speed in the DA20-C1 is 73 KIAS — establish this immediately if power is lost.
If the engine fails and you cannot restore it, establish 73 KIAS best glide immediately. This speed maximizes glide distance and gives you the most time and distance to find a landing area. At KTPA, all off-field environments are dense development — buildings, trees, roads. Best glide gives you the best chance to reach a suitable surface (road, parking lot, park) rather than impacting buildings.
At KTPA, all off-field environments are dense development — a forced landing is survivable only if you find a road or open area.
Off all runway ends at KTPA, the off-field environment is dense development, medium development, or open developed areas (parks, parking lots). There is no open field or water. A forced landing in buildings or trees is not survivable. If you must land off-field, look for a road, parking lot, or park. The DA20 is light and slippery; it floats in ground effect and is sensitive to gusts. A road landing requires good directional control — use differential braking on the nosewheel to maintain alignment.
Built from the real accident record
Scenario inspired by NTSB WPR24LA167 (2024 Harvard fuel starvation / tank selection), GAA19CA534 (2019 PA-28 fuel mismanagement / power loss), WPR12LA023 (2011 Cessna 185 fuel selector discipline), and CEN25LA081 (2025 PA-24 ferry flight fuel starvation). Localized to KTPA and the DA20-C1.
NTSB reports: WPR24LA167 · GAA19CA534 · WPR12LA023 · CEN25LA081
ACS tasks: PA.I.F — Weather Information · PA.I.G — Cross-Country Flight Planning · PA.II.A — Preflight Assessment · PA.II.B — Engine Starting / Systems Preflight · PA.IX.C — Emergency Approach and Landing · PA.I.H — Human Factors
Relevant FARs: §91.3 · §91.13 · §91.185 · §91.207
Step through the full decision tree, make the calls, and see where each choice leads — then debrief it with your CFI.
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