Engine Failure Over the Bay

Partial power loss on initial climb off Runway 22 — open water ahead, altitude marginal, decision window measured in seconds

Diamond DA40 · Sarasota Bradenton International Airport (KSRQ) · Commercial · Takeoff / Initial Climb

The scenario

• {'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 we get into the decision tree — what do you already know about engine failure on initial climb in the DA40? (Pick all that apply; this records your baseline.)

What the record shows

What the NTSB files show

Key lesson — Engine failure on initial climb off Runway 22 at KSRQ occurs over open water with no alternate landing surface. At 300 ft AGL, the decision window is measured in seconds. If diagnostics do not immediately restore power, commit to a controlled ditching: fuel selector OFF, mixture idle cutoff, master off before impact, doors unlatched, flaps for slowest touchdown speed. Best glide speed is 73 KIAS — fly it, do not try to stretch the glide. A controlled ditching is survivable; a stall or uncontrolled descent is not.

Debrief — teaching points

The DA40 fuel selector has LEFT / RIGHT — there is no BOTH position.

Unlike some Cessnas, the DA40 fuel selector is LEFT / RIGHT only. Selecting the wrong tank or an empty tank will cause fuel starvation and engine failure. On initial climb after takeoff, the pilot must ensure the correct tank is selected and monitor fuel quantity. A post-maintenance error (ERA19LA272) can also cause induction system separation, leading to partial or total power loss. Always verify the fuel selector is on the correct tank during the run-up and again before takeoff. If power is lost and the fuel selector is not on the correct tank, switching tanks may restore power — but only if the selected tank is not empty.

Engine failure on initial climb at 300 ft AGL over water is a ditching scenario.

Off Runway 22's departure end at KSRQ, the off-field environment is open water — the Gulf of Mexico and coastal bays. There is no alternate landing surface ahead on the initial climb-out. If the engine fails at 300 ft AGL, the decision is not 'return to the airport' — it is 'ditch or attempt a marginal return.' At 300 ft AGL, a return to the airport is marginal at best. The safer decision is to commit to a controlled ditching immediately. Trying to stretch the glide by flying slower than best glide (73 KIAS) risks a stall. Trying to turn back in a steep bank at low altitude with a failing engine risks a loss of control. The controlled ditching is the survivable outcome.

Best glide speed in the DA40 is 73 KIAS — fly it, do not stretch it.

Best glide speed (73 KIAS) is the speed that maximizes glide distance AND maintains control authority. Flying slower than best glide reduces glide distance and increases stall risk. In the DA40, stall speed in landing configuration (Vs0) is 49 KIAS. At 150 ft AGL with a failing engine, flying at 60 KIAS (slower than best glide) is marginal — a few knots of wind shear or a slight pitch-up and the airplane stalls. Maintain 73 KIAS best glide. If you cannot reach the airport at best glide, accept the ditching.

Ditching checklist: fuel selector OFF, mixture idle cutoff, master off before impact, doors unlatched, flaps for slowest touchdown speed.

A controlled ditching is survivable if executed correctly. Fuel selector OFF prevents fuel spillage and fire risk. Mixture idle cutoff stops the engine and prevents post-impact fire. Master off just before water contact prevents electrical fire. Doors unlatched allow rapid egress — you will not have time to open them after impact. Flaps reduce touchdown speed — impact energy rises with the square of speed, so the slowest possible touchdown speed is critical. Brief yourself on this checklist before every flight over water. In an emergency, you will not have time to think — you will execute what you have practiced.

Post-maintenance failures are real — verify the work.

NTSB ERA19LA272 is a post-maintenance failure: a mechanic failed to properly tighten the clamps securing the flexible induction coupling during a 100-hour inspection. The failure occurred 15 hours after the inspection. The pilot had no warning — the airplane was airworthy at departure. After any maintenance, especially 100-hour or major work, fly the airplane carefully on the first flight. Monitor engine instruments closely. If something feels wrong, land and have it checked. A post-maintenance failure on initial climb at low altitude is unforgiving.

Built from the real accident record

Scenario built from NTSB ERA23LA285 (2023 DA40 turbocharger housing fatigue / partial power loss), ERA19LA272 (2019 DA40 induction coupling failure / forced landing at 300 ft AGL), ERA18LA241 (2018 DA40 total power loss on approach), and regional water-landing precedents ATL97LA099 (1997 P210N ditching in Gulf of Mexico), NYC03LA109 (2003 C175A ditching near Ocean City), BFO91LA069 (1991 C177RG ditching in Ohio River), ANC13LA048 (2013 PA-16 ditching in ocean). Real events occurred at other airports and in other aircraft — NOT at KSRQ.

NTSB reports: ERA23LA285 · ERA19LA272 · ERA18LA241 · ATL97LA099 · NYC03LA109 · BFO91LA069 · ANC13LA048

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.B — Engine Starting / Systems Preflight · PA.V.A — Powerplant Management

Relevant FARs: §91.3 · §91.13 · §91.185

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