Dry on Final
Fuel mismanagement, a silent engine, and the decisions that follow at 30 feet MSL
The scenario
Field: Sarasota Bradenton International (KSRQ), elevation 30 ft MSL. You are inbound for Runway 22, a 5,006-ft runway with a heading of 218°. KSRQ is Class C airspace; the tower is open and you are in two-way contact.
Aircraft: Diamond DA40, N-number yours, solo, within weight and balance. Lycoming IO-360-M1A, 180 hp, fuel-injected. Constant-speed prop. G1000 glass panel. Fuel selector LEFT / RIGHT — there is no BOTH position.
The flight: a 1.8-hour local cross-country from Tampa Executive (KVDF) to KSRQ, with a fuel stop skipped because you were 'pretty sure' you had enough. You departed with approximately 30 gallons total — 15 left, 15 right — and have been running on the LEFT tank since engine start. You did not switch tanks at the one-hour mark as your instructor taught you.
Situation: You are on a 3-mile final for Runway 22, gear down (fixed), flaps LDG, airspeed stabilized at 70 KIAS. The G1000 fuel quantity for the LEFT tank reads near zero. The RIGHT tank reads approximately 13 gallons. You have not yet noticed.
Off-field reality: Runway 22 departs 218° — the climb-out environment off the south end is low-density development, open water, and open developed land. An engine failure on short final for Runway 22 with no altitude to maneuver means a forced landing into that environment — likely a ditching.
- {'label': 'Field', 'value': 'KSRQ · Sarasota Bradenton'}
- {'label': 'Runways', 'value': '4/22 · 14/32'}
- {'label': 'Elevation', 'value': '30 ft'}
- {'label': 'Aircraft', 'value': 'DA40'}
- {'label': 'Dominant phase', 'value': 'Takeoff / Landing'}
The decision
Before the scenario plays out — which of these are already in your head on a 3-mile final? (Pick all that apply; this records your baseline awareness.)
What the record shows
What the NTSB files show
Fuel starvation — engine failure caused by an empty selected tank while usable fuel remains in another — is one of the most preventable accident causes in general aviation. The NTSB database contains dozens of events that share a single root: the pilot did not switch tanks, did not verify the selector position, or did not monitor fuel quantity, and the engine quit with fuel available.
NTSB ERA12FA002 (2011, fatal): A Temco GC-1B Swift lost engine power over the Chesapeake Bay and ditched. The pilot had not verified the fuel selector position before flight or after the power loss. Fuel starvation. The accident was fatal.
NTSB ANC17LA043 (2017): A Cessna T207 on a Part 135 commuter flight lost engine power on approach due to fuel starvation and ditched near Coghlan Island. Contributing factors included unreliable fuel quantity indicators and a company history of fuel management issues. The crew had trusted gauges over known fuel load.
NTSB LAX97LA278 (1997): A Cessna 150G on a banner-tow operation ditched in the Pacific Ocean off California after the pilot forgot to switch to the auxiliary tank as required by procedure. Fuel was available; the procedure was not followed.
NTSB LAX98LA168 (1998): A Cessna T210M ditched in the Pacific Ocean 2 miles south of Santa Barbara after engine failure on final approach from improper fuel selector positioning.
These events occurred at other airports and in other aircraft — not at KSRQ and not in the DA40. But the mechanism is identical to what this scenario presents: a pilot who did not manage the fuel selector, an engine that quit with fuel available, and a forced landing that did not have to happen.
The Diamond DA40 has no BOTH position. LEFT and RIGHT are the only options. The POH recommends switching tanks at regular intervals to balance fuel and prevent exactly this scenario. On a 1.8-hour flight, one tank switch — a two-second action — would have prevented the emergency entirely.
Key lesson — Fuel starvation is not a mechanical failure — it is a management failure. The DA40 fuel selector has no BOTH; the pilot must actively manage LEFT and RIGHT. When the engine quits, the first items on the checklist are mixture, fuel selector (switch tanks), and boost pump — in that order, immediately, before declaring, before anything else. Thirteen gallons in the right tank does you no good if the selector is on the left.
Debrief — teaching points
The DA40 has no BOTH — fuel management is an active pilot task.
Unlike a Cessna 172 with a BOTH selector, the Diamond DA40 requires the pilot to choose LEFT or RIGHT. There is no passive 'both tanks feeding' position. On any flight longer than 30 minutes, you must plan tank switches, execute them on schedule, and verify the selector position. A 1.8-hour flight on a single tank is a setup for starvation — not because the airplane failed, but because the pilot did not manage it.
Fuel starvation is fixable in two seconds — if you work the checklist.
Starvation (wrong tank selected, fuel available elsewhere) is categorically different from exhaustion (all fuel gone). Starvation is reversible: switch the selector, hit the boost pump, and the engine restarts. But only if you work the checklist immediately. The instinct to declare, to aim for the runway, or to manage the glide first — before touching the fuel selector — wastes the seconds that separate a restart from a forced landing. Aviate first: establish best glide (73 KIAS). Then navigate. Then communicate. And run the checklist.
Best glide is 73 KIAS — know it, fly it, don't trade it.
On engine failure, the DA40's best glide speed is 73 KIAS at gross weight. That number gives you the maximum horizontal distance per foot of altitude lost. Raising the nose above that attitude does not extend your glide — it shortens it by increasing induced drag and bleeding airspeed toward the stall. Vs0 in the DA40 is 49 KIAS. At 200 ft AGL there is no margin to stall and recover. Fly 73 KIAS and work the problem; do not pull.
Know your off-field environment before you need it.
The climb-out environment off Runway 22 at KSRQ (218°) is low-density development, open water, and open developed land. An engine failure on short final for Runway 22 with insufficient altitude to reach the runway is a ditching scenario — not a field landing. Knowing this before the flight means you are not surprised when it matters. A controlled ditching at minimum speed (flaps LDG, wings level, slowest possible touchdown) is survivable. An uncontrolled impact into development at 80 KIAS is not.
Fuel gauges are a reference — your fuel log is the truth.
The G1000 fuel quantity display is a useful reference, but it is not certified as the primary fuel management tool. The authoritative inputs are: (1) how much fuel you verified by dipstick or visual check before departure, (2) how long you have been flying, and (3) which tank you have been on. If those three numbers tell you the LEFT tank is empty and the G1000 confirms it, the selector goes to RIGHT immediately — not after you declare, not after you assess the glide, not after you call tower. Immediately.
Built from the real accident record
Composite scenario built from NTSB ERA12FA002, ANC17LA043, LAX97LA278, and LAX98LA168 — fuel starvation events in single-engine pistons. Localized to KSRQ and the Diamond DA40. Real events occurred at other airports.
NTSB reports: ERA12FA002 · ANC17LA043 · LAX97LA278 · LAX98LA168
ACS tasks: PA.II.A — Pilot Qualifications / Preflight Preparation · PA.II.B — Weather Information · PA.II.C — Cross-Country Flight Planning · PA.IX.C — Emergency Approach and Landing · PA.I.H — Human Factors
Relevant FARs: §91.3 · §91.13 · §91.151
Step through the full decision tree, make the calls, and see where each choice leads — then debrief it with your CFI.
Open the interactive scenario →All sample scenarios · More Diamond DA40 scenarios · More scenarios at KSRQ