Power Loss on Climb-Out
Partial engine failure in a Piper Cherokee 180 — carburetor ice, fuel starvation, or maintenance? The decision window is measured in seconds.
The scenario
Departing Venice Municipal Airport (KVNC), Venice, FL — Runway 04, climbing out on a 045° heading. Elevation 18 ft MSL. You are a Private pilot with roughly 250 hours total, current and proficient. This is a local VFR flight in a Piper Cherokee 180.
It is a humid Florida morning in late spring: OAT 26°C, dew point 21°C, altimeter 29.94. Scattered clouds at 2,500 ft, light rain shower two 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.' You did not apply carburetor heat during the run-up because the engine ran smoothly.
Aircraft: Piper Cherokee 180, solo, full fuel (both tanks), within limits. Carbureted Lycoming O-360-A, fixed-pitch prop, steam panel. The airplane was released from a 100-hour inspection three days ago. Nothing was written up; the mechanic signed off on the inspection.
You are 350 ft AGL, climbing through 72 KIAS (near Vy of 74 KIAS), heading 045°, when the engine begins to run rough. Power is noticeably down — the tachometer is dropping. The terrain ahead off Runway 04 is open water and mangrove — not a suitable forced-landing environment. KVNC is non-towered (CTAF); you are in Class G airspace.
Pilot: You are current and proficient, but you did not apply carburetor heat during the run-up or after takeoff. You also did not verify the fuel selector position during the preflight — it was already on the LEFT tank from the previous flight, and you did not move it. The LEFT tank was nearly full; the RIGHT tank was half-full.
- {'label': 'Field', 'value': 'KVNC · Venice'}
- {'label': 'Runways', 'value': '4/22 · 13/31'}
- {'label': 'Elevation', 'value': '18 ft'}
- {'label': 'Aircraft', 'value': 'PA-28-180'}
- {'label': 'Dominant phase', 'value': 'Landing / Takeoff'}
The decision
Before we get into the decision tree — what do you already know about engine failure in the PA-28-180? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB ATL03LA148 (2003): A Piper PA-28-180 on a personal flight experienced engine power loss during takeoff climb. The pilot had not applied carburetor heat prior to takeoff, despite weather conditions favorable for carburetor icing. The probable cause was the pilot's failure to use carburetor heat when weather conditions were favorable for carburetor icing.
NTSB DEN07CA035 (2006): A Piper PA-28-180 on a personal flight lost engine power on base leg due to carburetor icing. The pilot attempted a forced landing on a road, swerved to avoid oncoming traffic, and struck a tree. The accident resulted in substantial damage. The probable cause was carburetor icing in conditions conducive to serious icing, with contributing factors including unsuitable terrain and the tree obstacle.
NTSB NYC03LA096 (2003): A Piper PA-28-180 on an instructional flight experienced partial engine power loss on initial climb after takeoff. The accident resulted from an inadequate 100-hour inspection that failed to detect a loose fuel line connection. Night conditions were a contributing factor. The pilot made a forced landing in a field.
NTSB ANC25LA094 (2025): A Piper PA-28-180 experienced partial engine power loss with vibration during climb-out following a low-altitude runway inspection pass. The accident resulted from engine malfunction that prevented continued climb. The pilot made a forced landing in terrain.
The real accidents cited above occurred at other airports and in other aircraft types — NOT at Venice Municipal Airport. KVNC has its own accident history (see field dominant patterns), but these specific events happened elsewhere. The scenario is localized to KVNC to make the off-field environment real and consequential for you as a student here.
The consistent thread across all these events: carburetor ice in the PA-28-180 is insidious. It builds gradually, 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. Additionally, fuel starvation from a forgotten tank switch or a loose fuel line (as in NYC03LA096) can mimic carb ice symptoms — but carb heat is the first response to roughness in conducive conditions.
Key lesson — In warm, moist Gulf Coast air, the PA-28-180's carbureted O-360-A 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 over open water, the decision window is measured in seconds — not minutes. Off Runway 04 at KVNC, the off-field environment is open water and mangrove: a delayed response means a ditching, not a field landing. Additionally, remember that the PA-28-180 has a LEFT / RIGHT fuel selector with NO BOTH position — the pilot must actively switch tanks. Verify the fuel selector position during preflight and monitor fuel tank levels during flight.
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 KVNC. You do not need visible ice, freezing temperatures, or IMC. Warm, moist air at reduced power is the classic carb-ice environment. The PA-28-180's Lycoming O-360-A is carbureted; it has no fuel injection. Carburetor heat is the only tool.
The first symptom is subtle — a dropping tachometer and engine roughness.
In a fixed-pitch airplane like the PA-28-180, 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 miss the early warning. By the time the roughness is obvious, significant ice has accumulated. Scan the tachometer as part of your regular instrument scan, especially 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.
At KVNC Runway 04, an engine failure on departure is a ditching.
The off-field environment off Runway 04's departure end (heading 045°) is open water and mangrove. There is no alternate landing surface. If the engine quits on the Runway 04 departure and altitude is insufficient to return to the airport, the outcome is a ditching. This is not a worst-case scenario; it is the geographic reality. Best glide is 65 KIAS. Cabin door unlatched before water contact. 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 04.
The PA-28-180 has a LEFT / RIGHT fuel selector with NO BOTH position — you must actively switch tanks.
Unlike some Cessnas, the PA-28-180 does not have a BOTH position on the fuel selector. You must actively switch between LEFT and RIGHT tanks. Running a selected tank dry — or taking off on a near-empty tank — is the signature starvation trap in this airplane. Verify the fuel selector position during preflight and confirm both tanks are feeding. During flight, monitor fuel tank levels and switch tanks at regular intervals (typically every 30 minutes) to balance consumption and prevent starvation. A loose fuel line connection (as in NTSB NYC03LA096) can also cause partial starvation and roughness that mimics carb ice — but carb heat is still the first response to roughness in conducive conditions.
Proactive carb heat use in conducive conditions is not optional.
The PA-28-180 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 Gulf Coast summer departure, with OAT near 26°C and dew point near 21°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 350 ft AGL over open water is waiting too long.
Built from the real accident record
Scenario built from NTSB DEN07CA035 (2006 PA-28-180 carburetor ice on base leg), ATL03LA148 (2003 PA-28-180 carb ice on takeoff climb), NYC03LA096 (2003 PA-28-180 loose fuel line post-maintenance), and ANC25LA094 (2025 PA-28-180 power loss on climb-out). Anonymized and localized to KVNC.
NTSB reports: DEN07CA035 · ATL03LA148 · NYC03LA096 · ANC25LA094
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
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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