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SAMPLE SBTTakeoff / Initial Climb

Engine Failure Over Open Water

Total power loss on initial climb from Runway 22 — altitude insufficient to return, ditching is the only option

Cessna 172M · Sarasota Bradenton International Airport (KSRQ) · Private · Takeoff / Initial Climb

The scenario

Departing Sarasota Bradenton International Airport (KSRQ), Runway 22, on a warm Florida afternoon. Field elevation 30 ft MSL. You are a Private pilot with 180 hours total time, current and proficient. This is a local flight — a 45-minute VFR hop to a nearby airport and back.

Conditions: OAT 32°C, dew point 24°C, altimeter 29.89. Scattered clouds at 3,500 ft, visibility 10 SM. Density altitude approximately 2,800 ft — the warm, humid air makes the C172M's 150 hp feel even more marginal than usual. The airplane is at gross weight: you, a passenger, and full fuel (42 gallons usable). Runway 22 is 5,006 ft long, plenty for a normal takeoff.

You completed a thorough preflight: fuel sampled from the sump drains, clear and blue; oil level full; flight controls free and correct; weight and balance within limits. The engine started normally and ran smoothly through the run-up. Magnetos checked, carburetor heat tested, vacuum system reading 4.5 inches Hg — all normal. You received your IFR clearance from KSRQ tower (Class C, part-time ATCT, currently open 0600–0000 local). You are cleared for takeoff on Runway 22.

The climb-out environment off Runway 22 (heading 218°) is a mix of low-density development, open water, and parks — the Gulf of Mexico and coastal bays lie directly ahead. At 400 ft AGL, you are committed to climb; a return to the airport is no longer feasible. At 600 ft AGL, you are in the Class C airspace (ceiling 4,000 MSL). At 800 ft AGL, you are clear of the immediate coastal zone.

Rotation speed (Vr) is 55 KIAS. Best rate of climb (Vy) is 78 KIAS. Best glide is 65 KIAS. Stall speed (clean) is 53 KIAS. You rotate at 55 KIAS, climb at 78 KIAS, and establish a heading of 218° as cleared.

The decision

Before we enter the scenario — what do you know about engine failure on initial climb in a C172M? (Pick all that apply; this records your baseline.)

What the record shows

What the NTSB files show

NTSB ATL03FA142 (2003, FATAL): A Cessna 172M on an instructional flight from Perry, Georgia experienced total engine power loss shortly after takeoff due to water-contaminated fuel. The CFI's preflight inspection was inadequate — water contamination was not detected in the fuel sample. The airplane lost power at low altitude, the pilot stalled trying to return to the airport, and the airplane impacted terrain. The probable cause was the CFI's failure to detect water-contaminated fuel and the pilot's failure to maintain adequate airspeed.

NTSB CEN25LA355 (2025): A Cessna 172M lost engine power during a second touch-and-go landing after a 200-nautical-mile cross-country flight. The pilot had adequate fuel remaining on the opposite tank but failed to switch tanks. The probable cause was fuel starvation due to the pilot's mismanagement of available fuel.

NTSB CEN24LA168 (2024): A Cessna 172M on an IFR flight experienced engine power loss due to carburetor icing during descent in night IMC. The pilot delayed applying carburetor heat; by the time heat was applied, ice had accumulated beyond the point where heat could restore full power. The probable cause was the pilot's delayed use of carburetor heat.

NTSB ERA23LA141 (2023): A Cessna 172M on an instructional flight experienced total loss of engine power due to inadequate oil lubrication. The engine was 55 hours past its required 100-hour inspection. The probable cause was a total loss of engine power due to lack of oil lubrication.

Regional ditching precedents: NTSB ATL97LA099 (1997, P210N) and NYC03LA109 (2003, C175A) both involved partial or total engine power loss on initial climb over water. Both pilots recognized the altitude was insufficient to return to the airport and committed to controlled ditchings. Survival rates in controlled ditchings are significantly higher than in uncontrolled ones or in attempts to stretch a marginal glide to land.

NTSB BFO91LA069 (1991, C177RG) and ANC13LA048 (2013, PA-16) both involved total engine failure at 300–350 ft AGL. Both pilots executed controlled ditching procedures and survived. The consistent lesson: when altitude is insufficient to return to the airport and land is not reachable, commit to a controlled ditching early, establish best glide, and execute the procedure properly.

The real accidents cited above occurred at other airports and in other aircraft — NOT at KSRQ. KSRQ's dominant accident pattern includes LOSS_OF_CONTROL_GROUND (19.2%), FORCED_LANDING (15.4%), and RUNWAY_EXCURSION (11.5%) — but the specific engine-failure-on-climb-over-water scenario is localized to this field to make the off-field environment real and consequential for you as a student here.

The consistent thread across all these events: total engine power loss on initial climb is survivable if the pilot recognizes the altitude is insufficient to return to the airport, commits to the ditching decision early, establishes best glide (65 KIAS for the C172M), and executes the ditching procedure properly. The failure is always a delay or an attempt to stretch a marginal glide.

Key lesson — Off Runway 22 at KSRQ, the climb-out environment is open water — the Gulf of Mexico and coastal bays. An engine failure on initial climb in this zone is a ditching, not a field landing. At 450 ft AGL with zero power, you have roughly 3–4 minutes of glide time at 65 KIAS best glide. The decision window is measured in seconds: commit to the ditching decision early, establish best glide, execute the ditching procedure (fuel selector BOTH, mixture rich, master off just before impact, doors unlatched, full flaps for slowest touchdown speed), and prioritize crew evacuation. Survival in controlled ditchings is significantly higher than in uncontrolled ones or in attempts to stretch the glide.

Debrief — teaching points

Total engine failure on initial climb is survivable — but only if you commit to the ditching decision early.

At 450 ft AGL with zero power, you have roughly 3–4 minutes of glide time at 65 KIAS best glide. The question is not whether you can survive — you can — but whether you commit to the ditching decision early enough to execute it properly. Attempting to stretch the glide, trying to restart the engine, or delaying the ditching decision costs altitude and time. The NTSB precedents (ATL97LA099, NYC03LA109, BFO91LA069, ANC13LA048) all show that pilots who committed to the ditching decision early and executed the procedure properly survived. Pilots who delayed or tried to stretch the glide did not.

Off Runway 22 at KSRQ, the climb-out environment is open water — a ditching, not a field landing.

The off-field environment off Runway 22's climb-out (heading 218°) is a mix of low-density development, open water, and parks — the Gulf of Mexico and coastal bays lie directly ahead. At 400 ft AGL, you are committed to climb; a return to the airport is no longer feasible. At 600 ft AGL, you are clear of the immediate coastal zone. If the engine fails between 400 and 600 ft AGL on the Runway 22 departure, the outcome is a ditching in open water, not a field landing. Know this before you line up on Runway 22.

Best glide speed for the C172M is 65 KIAS — establish it immediately and hold it.

At 65 KIAS best glide, the C172M descends at roughly 400–500 fpm and maximizes glide distance. This is the speed to establish immediately if power is lost. Slowing below 65 KIAS increases descent rate and reduces glide distance — the opposite of what you need. Speeding up above 65 KIAS also reduces glide distance. The C172M's best glide is 65 KIAS; establish it and hold it.

The ditching procedure minimizes impact energy and ensures safe evacuation.

The ditching checklist is: fuel selector BOTH, mixture rich, master switch OFF just before water contact, doors unlatched, flaps for slowest possible touchdown speed. Each step matters. Full flaps (40°) reduce touchdown speed to the slowest possible — impact energy rises with the square of touchdown speed, so the slowest possible speed is the priority. Unlatched doors ensure you can evacuate after water contact. Master off just before impact prevents electrical fires. The procedure is not optional; it is the difference between a survivable ditching and a catastrophic one.

Water-contaminated fuel is detected by sampling from the sump drains before flight.

NTSB ATL03FA142 shows that water contamination in fuel causes total engine power loss on climb. The contamination is detected by sampling from the sump drains during preflight — if water is present (it will separate and appear at the bottom of the sample), the flight is not released. The C172M's fuel system has sump drains at the lowest point of each tank. Sample both tanks before every flight. If you see water, do not fly.

Fuel starvation is a pilot error — the C172M's fuel selector is BOTH, not a tank-switching system.

NTSB CEN25LA355 shows a pilot who had adequate fuel on the opposite tank but failed to switch. The C172M's fuel selector has only one position: BOTH. There is no tank-switching system. If one tank is contaminated or blocked, you cannot switch to the other — the fuel system feeds from both tanks simultaneously. The lesson: preflight fuel sampling is the only defense against fuel contamination. If water is present, the flight is not released.

Built from the real accident record

Scenario built from NTSB ATL03FA142 (2003 C172M water-contaminated fuel / power loss on climb), CEN25LA355 (2025 C172M fuel starvation), CEN24LA168 (2024 C172M carburetor icing / delayed carb heat), and ERA23LA141 (2023 C172M oil starvation / power loss). Regional ditching precedents: ATL97LA099 (1997 P210N partial power loss / ditching), NYC03LA109 (2003 C175A partial power loss / ditching), BFO91LA069 (1991 C177RG total power loss / ditching), ANC13LA048 (2013 PA-16 engine failure / controlled ditching). Real accidents occurred at other airports and aircraft — NOT at KSRQ.

NTSB reports: ATL03FA142 · CEN25LA355 · CEN24LA168 · ERA23LA141 · ATL97LA099 · NYC03LA109 · BFO91LA069 · ANC13LA048

ACS tasks: PA.I.F — Weather Information · PA.I.G — Cross-Country Flight Planning · 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

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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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