Engine Failure on Initial Climb — Open Water Ahead
Total power loss at 400 ft AGL departing Runway 04 at KPIE. The off-field environment is open water. Ditching is the only option.
The scenario
Departing St. Petersburg Clearwater International Airport (KPIE), Pinellas Park, FL — Runway 04, initial climb on a 040° heading. Field elevation 11 ft MSL. The runway is short and narrow by modern standards (6,000 ft, ASP), and the climb-out environment off Runway 04 is open water — Tampa Bay and the Gulf of Mexico approach.
It is a warm, humid Florida morning in late summer: OAT 32°C, altimeter 29.89, light winds from the southeast. Scattered clouds at 3,500 ft, visibility 10 SM. A typical high-density-altitude day — the C172M's 150 hp Lycoming O-320 will struggle to climb in this heat and density altitude. You are at gross weight (2,300 lb), full fuel, four occupants.
You rotate at 55 KIAS, climb out at 78 KIAS (Vy, best rate of climb), and are passing 400 ft AGL when the engine suddenly loses all power. The tachometer drops to zero. No sputtering, no roughness — complete, total power loss. You are over open water, heading 040°, with no engine and 400 feet of altitude. The airport is behind you. There is no alternate landing surface ahead.
Aircraft: Cessna 172M, four occupants, full fuel, within limits. Lycoming O-320-E2D, 150 hp, carbureted, fixed-pitch prop, fuel selector on BOTH. The engine was run up normally; nothing was written up. Fuel quantity was verified before flight.
Pilot: you — a Private pilot, current, roughly 250 hours total. You have never experienced a total engine failure. You have never ditched an airplane. You have roughly 30 seconds to make the correct decision before altitude becomes critical.
- {'label': 'Field', 'value': 'KPIE · St. Petersburg Clearwater'}
- {'label': 'Runways', 'value': '4/22 · 18/36'}
- {'label': 'Elevation', 'value': '11 ft'}
- {'label': 'Aircraft', 'value': 'C172M'}
- {'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 over water? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB ERA15LA091 (2014): A Cessna 172M experienced total loss of engine power during cruise flight at 10,500 feet over the Atlantic Ocean and was ditched in the ocean about 5 miles from the nearest land mass. The accident resulted from total loss of engine power for reasons that could not be determined, as examination of the engine revealed no anomalies that would have precluded normal operation. The pilot executed a controlled ditching; all occupants survived.
NTSB ERA11LA429 (2011): A Cessna 172M experienced partial engine power loss during takeoff and made a controlled ditching in Lake Okeechobee after the pilot was unable to land on the intended runway. The accident resulted from separation of the No. 3 cylinder exhaust valve head, with contributing factor of engine operation beyond the manufacturer's recommended time between overhauls. The pilot's misjudgment of the airplane's position and airspeed relative to the runway while returning to the airport after a partial loss of engine power contributed to the accident. The pilot and occupants survived the ditching.
NTSB NYC03LA109 (2003): A Cessna 175A experienced a partial loss of engine power during initial climb and ditched in shallow water near Ocean City, New Jersey after the pilot was unable to maintain altitude for return to the airport. The accident resulted from a partial loss of engine power for undetermined reasons. The pilot recognized early that return to the airport was not feasible and committed to ditching rather than stretching the glide and losing altitude/options. All occupants survived.
NTSB BFO91LA069 (1991): A Cessna 177RG lost engine power at 300 feet AGL during initial climb and the pilot executed a controlled ditching in the Ohio River. The accident resulted from total loss of engine power for undetermined reasons, despite adequate fuel remaining on board. The pilot assessed glide distance realistically during initial climb engine failure, recognized when ditching was the only safe option, and committed to it promptly rather than attempting a marginal return. All occupants survived.
The consistent thread across all these events: when engine failure occurs on initial climb over water at low altitude, the correct decision is to recognize immediately that return to the airport is not feasible, establish best glide speed, and commit to a controlled ditching. The 'impossible turn' at 400 ft AGL is real — attempting it often results in a stall/spin or a hard landing below the glide slope. A controlled ditching, with doors unlatched, flaps for slowest touchdown speed, and master switch off just before impact, has a high survival rate. The uncontrolled ditching or the hard landing attempt has a low survival rate.
The real accidents cited above occurred at other airports and in other aircraft — NOT at KPIE. KPIE has its own accident history (see field dominant patterns: loss of control in flight, loss of control on the ground, stall/spin, gear-up landing, obstacle on takeoff/landing). The scenario is localized to KPIE Runway 04 to make the off-field environment real and consequential for you as a student here: open water off Runway 04 means an engine failure on that departure is a ditching, not a field landing.
Key lesson — Engine failure on initial climb over water at low altitude is a ditching scenario. The correct decision is to establish best glide speed (65 KIAS for the C172M) immediately, declare emergency to ATC, and commit to a controlled ditching. Attempting the 'impossible turn' back to the airport at 400 ft AGL consumes altitude and often results in a stall/spin or a hard landing. A controlled ditching — with doors unlatched, flaps added gradually for slowest touchdown speed, and master switch off just before water contact — has a high survival rate. Off Runway 04 at KPIE, the off-field environment is open water: a delayed response or a failed turn-back attempt means a hard, uncontrolled impact. Recognize the ditching scenario early and execute it correctly.
Debrief — teaching points
Engine failure on initial climb over water is a ditching scenario — recognize it immediately.
When the engine fails at low altitude (under 500 ft AGL) over water and the airport is behind you, return to the airport is not feasible. The glide distance from 400 ft AGL at best glide speed (65 KIAS) is roughly 1.5–2 nm — not enough to return to the airport if it is more than 0.5 nm behind. Attempting the 'impossible turn' at 400 ft AGL consumes altitude rapidly and often results in a stall/spin or a hard landing below the glide slope. The correct decision is to recognize the ditching scenario early, establish best glide, and commit to a controlled ditching.
Best glide speed is 65 KIAS for the C172M — establish it immediately and hold it.
Best glide speed for the C172M at gross weight is 65 KIAS. This speed maximizes glide distance and gives the most time and altitude to manage the emergency. Establish 65 KIAS immediately when the engine fails. Do not attempt to climb, do not attempt to stretch the glide by flying slower — 65 KIAS is the correct speed. Hold it until water contact.
Declare emergency to ATC immediately — they will coordinate rescue.
When you recognize the ditching scenario, declare emergency to KPIE Tower: 'KPIE Tower, [N-number], engine failure, ditching in the bay, emergency.' ATC will acknowledge, begin emergency services coordination, and track your position. Rescue will be dispatched. Do not delay the declaration — ATC needs to know your position and status so rescue can find you.
Unlatch the doors before water contact — occupants must be able to exit.
Unlatch the cabin doors (both front and rear) while you still have altitude and control. The doors will open on water contact, allowing occupants to exit. If the doors are latched, they may jam on impact and trap occupants inside. Unlatching the doors takes 5 seconds and is the single most important preparation step.
Add flaps gradually as the water approaches — slowest possible touchdown speed minimizes impact energy.
Impact energy rises with the square of touchdown speed. The slowest possible touchdown speed is the most important factor in a controlled ditching. As the water rises to meet you (roughly 10 seconds before impact), add flaps gradually — 10° at a time — to slow the touchdown speed. Do not add full flaps immediately; the descent rate will increase and the descent will become uncontrolled. Gradual flap addition keeps the descent controlled and the touchdown speed slow.
Turn the master switch OFF just before water contact — prevent fire, keep the airplane floating.
Just before water contact (roughly 5 feet AGL), turn the master switch off. This de-energizes the electrical system and prevents fire on water contact. The vacuum system will fail and your attitude indicator and heading indicator will go inert, but you are already committed to the ditching and do not need them. The master switch off also helps the airplane float — no electrical systems drawing power or creating drag.
Off Runway 04 at KPIE, the off-field environment is open water — ditching is the only option.
The climb-out environment off Runway 04 (heading 040°) at KPIE is open water — Tampa Bay and the Gulf of Mexico approach. There is no alternate landing surface ahead. An engine failure on the Runway 04 departure at low altitude is a ditching, not a field landing. Know this before you line up on Runway 04. If you are uncomfortable with the ditching scenario, request Runway 22 or Runway 18/36 instead.
Built from the real accident record
Scenario built from NTSB ERA15LA091 (2014 C172M total engine failure over water, ditching), ERA11LA429 (2011 C172M partial power loss on takeoff, controlled ditching), ANC08LA007 (2007 C172M water landing control loss), IAD02LA003 (2001 C172M engine failure over water), and regional precedents NYC03LA109, BFO91LA069, ANC13LA048, ERA11LA405. Localized to KPIE Runway 04.
NTSB reports: ERA15LA091 · ERA11LA429 · ANC08LA007 · IAD02LA003 · NYC03LA109 · BFO91LA069 · ANC13LA048 · ERA11LA405
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.VIII.D — Emergency Descent
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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