Total Power Loss on Initial Climb
Engine failure at 400 ft AGL off Runway 22 — open water ahead, altitude insufficient to return. A controlled ditching is the only option.
The scenario
Departing Peter O Knight Airport (KTPF), Tampa, FL — Runway 22, climbing out on a 217° heading over open water. Elevation 8 ft MSL. This is a non-towered field (CTAF); you will self-announce on 122.8 MHz.
It is a clear, calm morning: OAT 22°C, light winds from the northeast, altimeter 30.02. Visibility 10 SM. The water off Runway 22's departure end is Hillsborough Bay — open water, shallow in places, deeper channels toward the Gulf. The nearest alternate landing surface is the dense development and low-density residential areas to the north and west, roughly 2–3 nm away.
You are 400 ft AGL, climbing through 79 KIAS (Vy, best rate of climb), heading 217°, when the engine suddenly loses all power. No warning, no roughness, no gradual fade — total power loss. The propeller is windmilling. You have roughly 30 seconds of useful decision time before altitude becomes critical. The airport is behind you. Open water is ahead and below.
Aircraft: Cessna 172R, solo, full fuel (48 gallons usable), within limits. Fuel-injected Lycoming IO-360-L2A, fixed-pitch prop, steam panel, fuel selector on BOTH. The airplane was airworthy at departure; no squawks. The preflight was standard.
Pilot: you — a Private pilot, current, roughly 180 hours total. You have never experienced a total engine failure in flight. You have practiced forced landings to fields, not ditchings.
- {'label': 'Field', 'value': 'KTPF · Peter O Knight'}
- {'label': 'Runways', 'value': '4/22 · 18/36'}
- {'label': 'Elevation', 'value': '8 ft'}
- {'label': 'Aircraft', 'value': 'C172R'}
- {'label': 'Dominant phase', 'value': 'Landing / Approach'}
The decision
Before we get into the decision tree — what do you already know about total engine failure on initial climb in a single-engine airplane? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB ANC18LA013 (2017): A Cessna 172 on a personal flight from Carroll County Airport experienced total engine power loss shortly after takeoff during initial climb. The accident resulted from a total loss of engine power for reasons that could not be determined despite postaccident examination and testing. The engine was recovered and examined; no preimpact mechanical malfunctions or failures were found. The cause remains undetermined — a sobering reminder that total engine failures can happen to any airplane, for reasons that may never be fully understood.
NTSB WPR18LA039 (2017): A Cessna 172R experienced total engine power loss due to crankshaft fatigue fracture during climb. An instructor performed a forced landing to a field past the runway, and the airplane impacted a fence. The probable cause was fatigue separation of the crankshaft due to a fatigue fracture. This failure mode — a crack in the crankshaft that propagates until the shaft fails completely — can occur without warning and without any preflight indication.
NTSB ERA14LA142 (2014): A Cessna 172R experienced rapid oil pressure loss during climb, returned to the departure airport, and lost all engine power during an ILS approach, resulting in a forced landing on a highway. The probable cause was a total loss of engine power due to maintenance personnel's improper installation of the lower vacuum pump. This case shows that post-maintenance failures can be catastrophic and that a thorough post-maintenance test flight is essential.
NTSB ERA12LA294 (2012): A Cessna 172R operated by Eastern Kentucky University lost engine power due to fuel exhaustion during climb and made a forced landing in a field, striking a tree during rollout. The probable cause was fuel exhaustion attributed to inadequate fuel management, failure to supervise the student's preflight inspection, and inadequate operator fueling policies. This case emphasizes the importance of accurate fuel quantity verification and in-flight fuel management.
Regional precedents show that ditching in open water, when executed with proper technique and early commitment, is survivable. NTSB ATL97LA099 (1997 P210N), NYC03LA109 (2003 C175A), BFO91LA069 (1991 C177RG), and ANC13LA048 (2013 PA-16) all resulted in successful ditchings and rescues. The common thread: pilots who recognized the engine failure early, committed to the ditching decision when altitude was insufficient for return, and executed the ditching procedure (best glide, trim, unlatch doors, flaps for slowest touchdown speed, master off before impact) survived.
Peter O Knight Airport (KTPF) is surrounded by water on three sides. Off Runway 22's departure end (heading 217°), the environment is open water — Hillsborough Bay. Off Runway 18 and Runway 36, the environment is also open water. Only off Runway 4's departure end (heading 37°) is there dense development and low-density residential areas. This geographic reality means that an engine failure on the Runway 22, Runway 18, or Runway 36 departure at low altitude is a ditching, not a field landing. The field's own accident corpus shows DITCHING as 11.1% of accidents — a significant portion, reflecting the water-surrounded geography.
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, but these specific events happened elsewhere. The scenario is localized to KTPF to make the off-field environment real and consequential for you as a student here.
Key lesson — Total engine power loss on initial climb over water is a low-altitude emergency with a narrow decision window. At 400 ft AGL, you have roughly 30–45 seconds before impact. The decision is binary: can you return to the departure airport with the altitude available, or is a controlled ditching the only option? If the altitude is insufficient for a safe return (roughly 300 ft AGL or below), commit to the ditching immediately. Establish 65 KIAS best glide, trim for hands-off flight, unlatch the doors, and brief the ditching. Add flaps for the slowest possible touchdown speed — impact energy rises with the square of speed. Master off just before water contact. Evacuate immediately. Controlled ditchings, when executed with proper technique and early commitment, are survivable. The NTSB precedents show that pilots who hesitate or attempt marginal returns do not survive; pilots who commit to the ditching and execute the procedure do.
Debrief — teaching points
Total engine power loss on initial climb is a low-altitude emergency with a narrow decision window.
At 400 ft AGL with a dead engine, you have roughly 30–45 seconds before impact. The C172R at best glide (65 KIAS) has a glide ratio of roughly 9:1 — you can glide approximately 3,600 ft horizontally before reaching water level. The decision is binary: can you return to the departure airport with the altitude available, or is a ditching the only option? If the altitude is insufficient for a safe return (roughly 300 ft AGL or below), commit to the ditching immediately. Do not attempt a marginal return.
Establish best glide (65 KIAS) immediately and trim for hands-off flight.
The first action after a total power loss is to lower the nose to 65 KIAS best glide and trim the elevator for hands-off flight. This maximizes glide distance and gives you time to assess the situation and make a return/ditch decision. Do not attempt a restart at low altitude over water — the altitude loss during a restart attempt is not worth the low probability of success.
The 'impossible turn' — a 180° turn back to the departure runway at 400 ft AGL is marginal.
A shallow, coordinated 180° turn in a C172R at 65 KIAS with a 15° bank angle costs roughly 150–200 ft of altitude. At 400 ft AGL, this turn is theoretically possible but leaves no margin for error. At 300 ft AGL or below, the turn becomes impossible — commit to a ditching instead. The altitude loss during the turn is the limiting factor, not the turn itself.
Off Runway 22 at KTPF, the off-field environment is open water — a ditching is the only option.
Runway 22's departure heading is 217°. The off-field environment in that direction is Hillsborough Bay — open water. There is no alternate landing surface ahead. If the engine fails on the Runway 22 departure and altitude is insufficient to return to KTPF, a controlled ditching in the bay is the correct outcome. This is not failure — it is the geographic reality of this airport. Know this before you line up on Runway 22.
Impact energy rises with the square of touchdown speed — slowest possible speed is critical.
In a ditching, the slowest possible touchdown speed is the single most important factor in survival. Full flaps (30°) reduce touchdown speed to roughly 33 KIAS (Vs0, stall speed landing). Partial flaps (10°) reduce it to roughly 50 KIAS. No flaps leaves you at 65 KIAS. The difference in impact energy between 33 KIAS and 65 KIAS is enormous — impact energy is proportional to the square of speed. Add full flaps just before water contact to minimize impact energy.
Built from the real accident record
Scenario built from NTSB ANC18LA013 (2017 C172R total engine power loss on climb, cause undetermined), WPR18LA039 (2017 C172R crankshaft fatigue fracture), ERA14LA142 (2014 C172R vacuum pump installation failure), and ERA12LA294 (2012 C172R fuel exhaustion). Regional 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 ocean ditching). Real events occurred at other airports — NOT at Peter O Knight Airport (KTPF).
NTSB reports: ANC18LA013 · WPR18LA039 · ERA14LA142 · ERA12LA294 · 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.II.C — Engine Operation / Shutdown
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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