Fuel Selector Surprise Over Tampa Bay
A fuel-starvation event in a single-tank DA20 — the decision window is seconds, and three runway ends lead to water
The scenario
Departing Peter O Knight Airport (KTPF), Tampa, FL — Runway 22, a 3,583 ft asphalt strip at 8 ft MSL. Elevation is essentially sea level; the field sits on the eastern shore of Tampa Bay. It is a non-towered field (CTAF 122.8); you are in Class G airspace, but the overlying Tampa Class B (1,200 MSL floor) is 4.7 nm away and will be relevant on climb-out.
It is a clear, calm Florida morning: OAT 22°C, light winds from the northeast, altimeter 29.98. Visibility 10 SM. A perfect VFR day. You are planning a local flight to nearby Lakeland (KLAL), about 35 nm northeast — a 25-minute flight in the DA20 at 75 KIAS cruise.
You are flying a Diamond DA20-C1 on a solo local flight. The airplane is equipped with a Continental IO-240-B fuel-injected engine, fixed-pitch prop, fixed gear, and a SINGLE fuel tank with an ON/OFF selector. The fuel tank holds 22.5 gallons usable. You arrived at KTPF yesterday; the airplane was fueled to tabs (full) after your last flight. You did a standard preflight this morning, including a visual fuel check — the tank appeared full.
Pilot: you — a Private pilot, current, roughly 180 hours total. You have flown the DA20 for about 40 hours. You are familiar with its light, responsive handling and its sensitivity to ground effect and gusts. You are less familiar with fuel management in single-tank aircraft — most of your training was in Cessnas with left/right selectors.
The scenario: You are on approach to KTPF after a 25-minute flight to Lakeland and back. You are descending through 800 ft AGL on a 5-mile final for Runway 22 (heading 217°). The engine is running smoothly. You have not touched the fuel selector since takeoff — it has been in the ON position the entire flight. The runway is in sight, the approach is stable, and you are about to land.
- {'label': 'Field', 'value': 'KTPF · Peter O Knight'}
- {'label': 'Runways', 'value': '4/22 · 18/36'}
- {'label': 'Elevation', 'value': '8 ft'}
- {'label': 'Aircraft', 'value': 'DA20'}
- {'label': 'Dominant phase', 'value': 'Landing / Approach'}
The decision
Before we get into the decision tree — what do you know about fuel management in the DA20? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB ERA12FA002 (2011, FATAL): A Temco GC-1B Swift experienced total loss of engine power over the Chesapeake Bay and ditched in the water after a controlled glide. The accident resulted from the pilot's improper fuel management — specifically, the pilot did not verify the fuel selector position before flight or after the power loss, resulting in fuel starvation. The pilot did not survive the ditching.
NTSB ANC17LA043 (2017): A Cessna T207 on a Part 135 scheduled commuter flight lost all engine power during approach due to fuel starvation and made a controlled ditching near Coghlan Island, Alaska. The accident resulted from total loss of engine power due to fuel starvation, with contributing factors including unreliable fuel quantity indicators and a company history of fuel management issues. The crew survived the ditching.
NTSB LAX97LA278 (1997): A Cessna 150G on a banner towing operation lost engine power and ditched in the Pacific Ocean off California. The accident resulted from fuel starvation caused by the pilot's mismanagement of the aircraft's fuel supply — specifically, forgetting to switch to the auxiliary tank as required by operating procedures. The pilot survived.
NTSB LAX98LA168 (1998): A Cessna T210M ditched in the Pacific Ocean 2 miles south of Santa Barbara after engine failure on final approach. The accident resulted from the pilot's mismanagement of fuel through improper fuel tank selector positioning. The pilot did not survive.
The real accidents cited above occurred at other airports and in other aircraft — NOT at Peter O Knight Airport. KTPF has its own accident history (see field dominant patterns: forced landing 19.4%, loss of control in-flight 16.7%, ditching 11.1%), but these specific fuel-starvation events happened elsewhere. The scenario is localized to KTPF to make the off-field environment real and consequential for you as a student here.
The consistent thread across all these events: fuel selector position is a critical, simple check that is often overlooked. The DA20 has a single tank with an ON/OFF selector — there is no left/right tank management, so the risk is purely quantity planning or selector position. If the selector is OFF, the engine will not run. The fix is simple: verify the fuel selector position before takeoff, and immediately check it if power is lost. The NTSB cases show that pilots who check the selector immediately often restart the engine and make a safe landing. Pilots who do not check it often end up ditching.
Off Runway 22's climb-out end (heading 217°), the off-field environment is mostly open water — Tampa Bay. An engine failure on that departure is a ditching, not a field landing. Off Runway 04's climb-out end (heading 37°), the environment is dense development — a forced landing there is possible but difficult. Off Runway 18 and Runway 36, the environment is also mostly open water. KTPF is surrounded by water; the only safe climb-out is over land to the north and east. Know your off-field environment before you line up on the runway.
Key lesson — The DA20 has a single fuel tank with an ON/OFF selector. If the selector is OFF, the engine will not run. Verify the fuel selector position before takeoff — it should be in the ON position. If you experience total engine power loss in flight, immediately check the fuel selector position. If it is OFF, turn it to ON and the engine will likely restart. The NTSB cases show that pilots who check the selector immediately often survive; pilots who do not often end up ditching. Off Runway 22 at KTPF, the off-field environment is open water — a delayed response means a ditching, not a field landing.
Debrief — teaching points
The DA20 fuel system is simple: one tank, ON/OFF selector.
The Diamond DA20-C1 has a single fuel tank with an ON/OFF selector. There is no left/right tank switching, no auxiliary tank, no fuel pump control. The system is simple and reliable — but only if the selector is in the correct position. If the selector is OFF, the engine will not run. This is not a complex system; it is a critical, simple check. Verify the fuel selector position before takeoff. It should be in the ON position. If you experience total engine power loss in flight, immediately check the fuel selector position.
Fuel starvation from selector position is different from fuel exhaustion.
Fuel exhaustion is running out of fuel — you have flown longer than your fuel endurance allows. Fuel starvation is when the fuel selector is in the wrong position (OFF) or the fuel system is blocked — the engine loses power even though fuel is available in the tank. In the DA20, fuel starvation from selector position is the primary risk. A visual fuel check during preflight is important, but it is not a substitute for verifying the selector position. The selector must be in the ON position for the engine to run.
Verify the fuel selector position before takeoff — do not assume it is correct.
The NTSB cases show that pilots often assume the fuel selector is in the correct position without verifying it. ERA12FA002 (Temco GC-1B) and LAX98LA168 (Cessna T210M) both resulted from improper fuel selector positioning that the pilot did not verify before takeoff. Make fuel selector position part of your pre-takeoff checklist. Physically look at the selector and confirm it is in the ON position. Do not rely on memory or assumption.
If you experience total engine power loss, immediately check the fuel selector position.
The first diagnostic action after total engine power loss should be to check the fuel selector position. If it is OFF, turn it to ON and the engine will likely restart. This is a simple, critical check that takes 2 seconds and can save your life. The NTSB cases show that pilots who check the selector immediately often restart the engine and make a safe landing. Pilots who do not check it often end up ditching or crashing.
At KTPF, three of four runway ends lead to open water on departure.
Off Runway 22's climb-out end (heading 217°), the environment is mostly open water — Tampa Bay. Off Runway 18 and Runway 36, the environment is also mostly open water. Off Runway 04's climb-out end (heading 37°), the environment is dense development. KTPF is surrounded by water; the only safe climb-out is over land to the north and east. Know your off-field environment before you line up on the runway. An engine failure on the Runway 22 departure at low altitude is a ditching, not a field landing.
Best glide speed in the DA20 is 73 KIAS — that is the speed to fly immediately if power is lost.
Best glide speed maximizes glide distance and gives you the most time and distance to manage the emergency. In the DA20, best glide is 73 KIAS at gross weight. Establish this speed immediately if the engine loses power. At 800 ft AGL on final approach, 73 KIAS best glide gives you roughly 90 seconds of flight time — enough to reach the runway if you are within 5 miles. If you are farther out, you may not have enough glide distance to reach the runway, and you will need to prepare for a forced landing or ditching.
A controlled ditching is survivable — an uncontrolled one is not.
If you are going to land short of the runway in open water, a controlled ditching is the correct outcome. Establish best glide speed (73 KIAS), lower the nose slightly to ensure you don't stall, and pick a smooth area of water. Brief yourself on the ditching checklist: fuel selector OFF, mixture rich, master off just before impact, doors unlatched, flaps for slowest possible touchdown speed. Impact energy rises with the square of touchdown speed, so the slowest possible speed matters most. Survival rates in controlled ditchings are significantly better than in uncontrolled ones.
Built from the real accident record
Scenario built from NTSB ERA12FA002 (2011 Luscombe fuel selector verification failure), ANC17LA043 (2017 Cessna T207 fuel starvation / ditching), LAX97LA278 (1997 Cessna 150G auxiliary tank mismanagement), and LAX98LA168 (1998 Cessna T210M fuel tank selector error). Anonymized and localized to KTPF, Tampa, FL.
NTSB reports: ERA12FA002 · ANC17LA043 · LAX97LA278 · LAX98LA168
ACS tasks: PA.I.F — Weather Information · PA.I.G — Cross-Country Flight Planning · PA.IX.C — Emergency Approach and Landing · PA.I.H — Human Factors · PA.II.A — Preflight Assessment
Relevant FARs: §91.3 · §91.13 · §91.185
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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