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SAMPLE SBTTakeoff / Initial Climb

The Impossible Turn

Partial engine power loss on initial climb, low altitude, and the decision to turn back — a stall/spin trap that kills pilots

Piper Cherokee 180 · Lakeland Linder International Airport (KLAL) · Private · Takeoff / Initial Climb

The scenario

Departing Lakeland Linder International Airport (KLAL), Lakeland, FL — Runway 10, climbing out on a 90° heading. Elevation 142 ft MSL. It is a warm Florida morning in late July: OAT 31°C, dew point 24°C, altimeter 29.92. Scattered clouds at 3,500 ft, visibility 10 SM. High density altitude — roughly 2,200 ft DA — means the airplane will climb more slowly than you might expect, and takeoff distance will be longer.

You are a Private pilot with 180 hours total time, current and proficient. This is your second flight in the Piper Cherokee 180 — you have 8 hours in type, all dual with your CFI. Today is a solo local flight: a departure, a climb to 2,000 ft, a local area tour, and a return to KLAL. You are within weight and balance. Fuel is full — 36 gallons usable, both tanks. You ran up the engine on the ground; it ran smoothly, both mags checked, no anomalies.

You are cleared for takeoff on Runway 10. You roll down the runway, rotate at 60 KIAS, and climb out. At 300 ft AGL, heading 090°, climbing through 70 KIAS, you notice the engine is running rough. The tachometer is unwinding — power is dropping. You are still over the runway departure end; the off-field environment ahead (to the east, heading 090°) is low-density development, open developed areas (parks and large lots), and some wooded areas — not ideal for a forced landing, but better than water.

Aircraft: Piper Cherokee 180, solo, full fuel, within limits. Lycoming O-360-A, carbureted, fixed-pitch prop, steam panel, fuel selector on LEFT. The airplane was airworthy at departure; nothing was written up. 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.

Pilot: you — a Private pilot, current, 180 hours total, 8 hours in the Cherokee 180. You are alone in the airplane. The engine is losing power at 300 ft AGL, and you have roughly 20–30 seconds to make a decision that will determine whether you walk away from this flight or not.

The decision

Before we get into the decision tree — what do you already know about 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 LAX01FA199 (2001, FATAL): A Piper PA-28-180 student pilot on a solo instructional flight at Big Bear City, California selected a downwind takeoff runway and stalled during initial climb at low altitude, striking trees. The accident was attributed to inadequate airspeed management and a downwind takeoff, with contributing factors including partial engine power loss from an inoperative right magneto and high density altitude. The probable cause was the student pilot's failure to maintain airspeed above stall speed during takeoff initial climb.

NTSB ANC90LA112 (1990, FATAL): A heavily loaded Piper PA-28 crashed into trees approximately 40 seconds after takeoff from a closed dirt strip after encountering a downdraft. The accident resulted from the aircraft's inability to overcome the downdraft with available power, compounded by heavy loading and engine degradation from improper maintenance. The pilot could not recover from the descent.

NTSB WPR21LA020 (2020): A Piper PA-28-180 experienced partial loss of engine power during cruise flight due to a stuck exhaust valve on the No. 4 cylinder. The pilot declared an emergency and made a forced landing to a highway, during which the right wing struck a barbed wire fence. The pilot survived.

NTSB WPR13LA366 (2013): A Piper PA-28-180 lost partial engine power during takeoff and made a forced landing beyond the runway departure end. The accident resulted from separation of exhaust muffler baffling that partially blocked airflow, with contributing factors including inadequate maintenance of the exhaust system.

The regional precedents — NTSB WPR17FA152 (2017, Jansen Pazmany PL-2), LAX93LA048 (1992, Rans S-10), ERA14FA123 (2014, Sonex), and SEA90LA162 (1990, Vaden SA102) — all show the same fatal pattern: engine failure at low altitude, attempted steep 180° turn back to the runway, stall/spin, impact. The 'impossible turn' is unrecoverable at 300–400 ft AGL. Every pilot who attempted it in these cases died.

The real accidents cited above occurred at other airports and in other aircraft — NOT at Lakeland Linder International Airport. KLAL has its own accident history (see field dominant patterns: LOSS_OF_CONTROL_INFLIGHT 23.7%, LOSS_OF_CONTROL_GROUND 19.4%, FORCED_LANDING 17.2%), but these specific events happened elsewhere. The scenario is localized to KLAL to make the off-field environment real and consequential for you as a student here.

The consistent thread across all these events: after engine failure at low altitude, the pilot's instinct is to turn back to the runway. At 300–400 ft AGL, a steep 180° turn with a rough or failing engine exceeds the airplane's capability. Stall/spin is the outcome. The correct decision is to land straight ahead in the best available field — not to attempt a turn back to the runway. This is the hardest decision in aviation, because it feels wrong to not go back to the airport. But it is the only decision that keeps you alive.

The Cherokee 180's Lycoming O-360-A is carbureted and susceptible to carburetor ice in warm, moist conditions — even at 31°C with high dew points. If the engine is rough on initial climb, apply full carburetor heat immediately. If the engine is completely dead, land straight ahead. Do not attempt the impossible turn.

Key lesson — After engine failure at low altitude on initial climb, the correct decision is to land straight ahead in the best available field — NOT to attempt a steep 180° turn back to the runway. At 300–400 ft AGL, a steep turn with a rough or failing engine will stall and spin the airplane. The 'impossible turn' is unrecoverable at this altitude. If the engine is rough (not completely dead), apply full carburetor heat immediately — the Cherokee 180's carbureted O-360-A is susceptible to carb ice in warm, moist Florida conditions. But if power does not return quickly, commit to a forward landing. The off-field environment off Runway 10's departure end (heading 090°) is low-density development and open areas — not ideal, but survivable. The runway will still be there for the next flight.

Debrief — teaching points

The 'impossible turn' is unrecoverable at 300–400 ft AGL.

After engine failure at low altitude, the pilot's instinct is to turn back to the runway. At 300–400 ft AGL, a steep 180° turn with a rough or failing engine exceeds the airplane's capability. The turn requires a steep bank (20–30°), which increases the stall speed. With a rough engine and low airspeed, the airplane will stall and spin. There is no recovery altitude. Every pilot who attempted the impossible turn in the NTSB cases cited above (LAX01FA199, WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162) died. The correct decision is to land straight ahead in the best available field.

Carburetor ice in the Cherokee 180 forms in warm, moist conditions — not just freezing temperatures.

The Cherokee 180's Lycoming O-360-A is carbureted. Carburetor ice can form at temperatures between roughly 20°C and 30°C when relative humidity is high — exactly the Florida summer conditions at KLAL. The temperature drop across the carburetor venturi can be 20–30°C, easily producing ice even when OAT is well above freezing. The first symptom is engine roughness and a dropping tachometer. Apply full carburetor heat immediately at the first sign of roughness in conducive conditions.

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.

The Cherokee 180 fuel selector is LEFT / RIGHT with no BOTH position — tank switching is mandatory.

Unlike Cessnas, the Cherokee 180 has no BOTH position on the fuel selector. You must actively switch tanks during flight. Running a selected tank dry is the signature starvation trap in Pipers. On this flight, you took off on the LEFT tank. If the engine is rough, confirm the fuel selector is on LEFT and the tank has fuel. If you suspect fuel starvation, switch to the RIGHT tank. But on initial climb, the most likely cause of roughness is carburetor ice, not fuel starvation.

At KLAL Runway 10, an engine failure on departure is survivable if you land straight ahead.

The off-field environment off Runway 10's departure end (heading 090°) is low-density development and open areas — parks, large lots, some wooded areas. This is not ideal, but it is survivable. At 65 KIAS best glide with full flaps (40°), the touchdown speed is minimized. Impact energy rises with the square of speed, so the slowest possible touchdown speed is critical. You can walk away from this flight if you commit to landing straight ahead. The runway will still be there for the next flight.

Proactive carb heat use in conducive conditions is not optional.

The Cherokee 180 POH and the FAA Pilot's Handbook of Aeronautical Knowledge both recommend applying carburetor heat when conditions are conducive to icing — before the symptom appears. In a Florida summer departure, with OAT near 31°C and dew point near 24°C, that means applying carb heat during the run-up check (and confirming the expected RPM drop, then recovery) and considering its use during climb in visible moisture or high humidity. Waiting for the roughness to appear at 300 ft AGL is waiting too long.

Built from the real accident record

Scenario built from NTSB LAX01FA199 (2001 PA-28-180 stall/spin on initial climb, partial power loss from inoperative magneto), ANC90LA112 (1990 PA-28-180 downdraft/power loss, heavy loading), WPR21LA020 (2020 PA-28-180 partial power loss, exhaust valve), WPR13LA366 (2013 PA-28-180 partial power loss, exhaust muffler), and regional precedents WPR17FA152, LAX93LA048, ERA14FA123, SEA90LA162 (all stall/spin on attempted return to runway after engine loss at low altitude). Anonymized and localized to KLAL.

NTSB reports: LAX01FA199 · ANC90LA112 · WPR21LA020 · WPR13LA366 · WPR17FA152 · LAX93LA048 · ERA14FA123 · SEA90LA162

ACS tasks: PA.I.F — Weather Information · PA.II.A — Preflight Inspection · PA.II.B — Engine Starting / Systems Preflight · PA.III.A — Normal Takeoff and Climb · PA.IX.C — Emergency Approach and Landing · PA.I.H — Human Factors

Relevant FARs: §91.3 · §91.13 · §91.185

Run this scenario yourself

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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