Rough Running Over Hernando County
Partial power loss in a high-performance Cessna 182, forced-landing decision-making, and the difference between a good field and a bad one
The scenario
Departing Brooksville–Tampa Bay Regional Airport (KBKV), Brooksville, FL — Runway 09, climbing out on a 090° heading. Elevation 76 ft MSL. You are a commercial pilot with a high-performance endorsement; this is your second flight in the Cessna 182 Skylane. The 182 is faster, heavier, and more complex than the 172 you trained in: constant-speed prop, cowl flaps, a nose-heavy airframe, and 230 hp of Continental O-470 carbureted power.
It is a hazy Florida afternoon in late spring: OAT 27°C, dew point 21°C, altimeter 29.92. Scattered clouds at 2,500 ft, light rain shower three miles to the northeast. Visibility 8 SM. The conditions are classic Gulf Coast: warm, moist, and exactly the environment the FAA icing probability chart marks as 'serious icing at glide power, moderate icing at cruise power.' The 182's carbureted O-470 is susceptible to carburetor ice in these conditions.
You are 450 ft AGL, climbing through 80 KIAS (Vy, best rate of climb), heading 090°, when the engine begins to run rough. Power is noticeably down — the tachometer is unwinding and the manifold pressure is dropping. The off-field environment to your right (north) is open developed land — parks, large lots, pasture. To your left (south) is evergreen forest and pasture. KBKV's tower is part-time (0700–2200) and is open; you are in Class D airspace.
Aircraft: Cessna 182 Skylane, solo, full fuel, within limits. Carbureted Continental O-470, constant-speed prop (prop control on the panel), cowl flaps (cooling management), steam / vacuum panel, fuel selector on BOTH. Nothing was written up; the airplane was airworthy at departure. You did not apply carburetor heat during the run-up because the engine ran smoothly. You did not apply it after takeoff because you were focused on the climb and prop management.
Pilot: you — a Commercial pilot, current, roughly 350 hours total, 12 hours in the 182. You are familiar with the 182's systems but this is only your second flight. You have not yet internalized the workload of managing the constant-speed prop and cowl flaps while monitoring engine instruments in marginal conditions. The 182 is faster and more powerful than the 172, but it is also heavier and carries more energy on approach — a fast or flat approach floats, and the nose drops into a porpoise.
- {'label': 'Field', 'value': 'KBKV · Brooksville–Tampa Bay'}
- {'label': 'Runways', 'value': '3/21 · 9/27'}
- {'label': 'Elevation', 'value': '76 ft'}
- {'label': 'Aircraft', 'value': 'C182'}
- {'label': 'Dominant phase', 'value': 'Landing / Cruise'}
The decision
Before we get into the decision tree — what do you already know about the C182 Skylane's systems and engine-failure response? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB CEN21LA002 (2020): A Cessna 182 encountered a partial loss of engine power during a go-around attempt on final approach. The pilot made a forced landing in a corn field. The reason for the partial loss of engine power could not be determined, though carburetor icing was possible. The probable cause was listed as 'partial loss of engine power for undetermined reasons.' The pilot survived; the aircraft was substantially damaged.
NTSB CEN26LA009 (2025): A Cessna 182RG experienced engine problems during cruise including unresponsive propeller pitch control, rough running, and total oil pressure loss. The pilot executed a forced landing on a road. The probable cause was not determined; the aircraft was retained for further examination. The incident highlights the complexity of the C182's constant-speed propeller system and the need for thorough engine monitoring.
NTSB WPR25LA292 (2025): A Cessna 182N on a personal flight experienced reduced engine power on approach that could not be restored. The pilot executed an emergency landing on a divided highway with partial power, but the left wing struck a tree during landing roll, causing the aircraft to veer left, exit the roadway, and nose over. The pilot was seriously injured. The probable cause was not determined.
The local environment at KBKV makes this scenario particularly forgiving compared to water-surrounded fields: Runway 09's climb-out environment (heading 090°) is open developed land — parks, large lots, pasture, and medium development. An engine failure on the Runway 09 departure at low altitude is a forced landing in open field, not a ditching. There is open terrain available. This is the NLCD ground cover off that runway end.
The real accidents cited above occurred at other airports and in other aircraft — NOT at Brooksville–Tampa Bay Regional Airport. KBKV has its own accident history (see field dominant patterns: hard landings, forced landings, runway excursions), but these specific events happened elsewhere. The scenario is localized to KBKV to make the off-field environment real and consequential for you as a student here.
The consistent thread across all these events: partial power loss in the C182 is insidious. The carbureted Continental O-470 can accumulate carburetor ice in warm, moist conditions, and the constant-speed propeller adds workload and complexity. The first symptom is roughness and a dropping tachometer (not a dramatic power cut), and by the time it is obvious, it may be too late for a comfortable recovery. The fix — full carburetor heat, immediately, at the first sign of roughness in conducive conditions — is simple. The failure is always a delay, compounded by the added workload of managing the prop and cowl flaps in a high-performance airplane.
Key lesson — In warm, moist Gulf Coast air, the C182's carbureted Continental O-470 can accumulate serious carburetor ice even at cruise power and above-freezing temperatures. Apply full carburetor heat at the first sign of engine roughness or unexplained RPM loss. At low altitude, the decision window is measured in seconds — not minutes. The C182 is faster and more powerful than the 172, but it is also heavier and more complex; the constant-speed prop and cowl flaps add workload. Do not let that workload distract you from engine monitoring. Off Runway 09 at KBKV, the off-field environment is open developed land and pasture — a forced landing there is feasible, not a ditching. But it is still a forced landing, and it is still an emergency. Early recognition and immediate action are the difference between a clean departure and a crash.
Debrief — teaching points
Carburetor ice forms in conditions you would not expect.
The FAA icing probability chart shows 'serious icing at glide power' at temperatures between roughly 20°C and 30°C when relative humidity is high — exactly the Gulf Coast afternoon conditions at KBKV. You do not need visible ice, freezing temperatures, or IMC. Warm, moist air at reduced power is the classic carb-ice environment. The C182's carbureted Continental O-470 is particularly susceptible. Carburetor heat is the only tool.
The first symptom is subtle — a dropping tachometer and engine roughness.
In a constant-speed airplane like the C182, carburetor ice first shows as engine roughness and an unexplained RPM decrease. There is no dramatic power cut. Pilots who are not actively monitoring the tachometer and manifold pressure miss the early warning. By the time the roughness is obvious, significant ice has accumulated. Scan the engine instruments as part of your regular scan, especially in conducive conditions. Do not let the workload of managing the prop and cowl flaps distract you from engine monitoring.
Apply full carburetor heat — not partial — and expect an initial RPM drop.
When you apply carb heat to an iced carburetor, the RPM will drop further before it rises. This is expected and normal: the heat is melting ice and the resulting water is briefly disrupting combustion. Do not remove carb heat when the RPM drops — that is the heat working. Hold it full on. The RPM will recover as the ice clears, typically within 15–30 seconds depending on ice accumulation. Partial carb heat can worsen the situation by partially melting ice into water ingestion without fully clearing the restriction.
At KBKV Runway 09, an engine failure on departure is a forced landing in open field.
The off-field environment off Runway 09's climb-out (heading 090°) is open developed land — parks, large lots, pasture, and medium development. There is no water, no dense forest, no built-up area immediately ahead. An engine failure on the Runway 09 departure at low altitude is a forced landing in open field, not a ditching or an impossible situation. This is the geographic reality. Best glide is 70 KIAS. Approach speed is 60 KIAS. Doors unlatched before landing. Master off just before impact. Flaps for slowest possible touchdown speed — impact energy rises with the square of touchdown speed, so the slowest possible speed matters most. Know this before you line up on Runway 09.
The C182 is heavier and more complex than the 172 — do not let that distract you from engine monitoring.
The C182 has a constant-speed propeller (prop control on the panel) and cowl flaps (cooling management) that the 172 does not have. These systems add workload and complexity. In marginal conditions, it is easy to focus on prop and cowl flap management and miss the early signs of engine trouble. Prioritize engine monitoring — tachometer, manifold pressure, engine temperature, oil pressure — over prop and cowl flap tweaking. A rough engine is a rough engine, regardless of prop pitch or cowl flap position.
Built from the real accident record
Scenario built from NTSB CEN21LA002 (2020 C182 partial power loss on go-around), CEN26LA009 (2025 C182RG engine problems / forced landing), and WPR25LA292 (2025 C182N reduced power on approach / emergency landing). Anonymized and localized to KBKV.
NTSB reports: CEN21LA002 · CEN26LA009 · WPR25LA292
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 — Preflight Inspection · PA.VII.A — Engine Management
Relevant FARs: §91.3 · §91.13 · §91.185 · §61.31
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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