Tank Awareness on the Second Approach
Fuel starvation from improper tank selection during descent — the PA-28-180's signature trap
The scenario
Departing Venice Municipal Airport (KVNC), Venice, FL — Runway 13, a 50-minute local flight to a nearby field and back. Elevation 18 ft MSL. Clear skies, light winds, 1200 local. You are a Private pilot with 180 hours total time, current on the Piper Cherokee 180. This is a familiar route — you have flown it a dozen times.
Preflight: You visually checked both fuel tanks — left tank appeared three-quarters full, right tank appeared one-quarter full. You did not dip the tanks with a fuel stick; you relied on the sight gauges. The fuel selector is set to LEFT for takeoff. You plan to switch to the right tank en route to balance consumption, then return to the left tank for the approach and landing.
Takeoff and climb: Runway 13 departure, climbing to 2,500 ft MSL, heading 135° toward your destination. The flight is smooth, the engine is running normally, and you are in no hurry. At 1,500 ft AGL (roughly 1,520 ft MSL), you level off and cruise at 2,500 ft MSL. The left tank is feeding the engine; you estimate you have burned 5–8 gallons so far.
At the destination: You arrive, circle the field, and decide to make a practice approach and go-around before landing. You enter a left downwind for Runway 13 (the reciprocal, heading 315°), descend to 1,500 ft AGL, and execute a go-around at 500 ft AGL. The engine is running normally. You climb back to 2,500 ft MSL.
The return leg: You are now heading back toward KVNC, still on the left tank. You have been on the left tank for the entire flight — roughly 50 minutes of cruise plus the practice approach. The left tank, which appeared three-quarters full at preflight, has now been feeding the engine for an hour. You have not switched to the right tank. You are descending toward KVNC for the landing.
At 1,500 ft AGL, 3 nm from KVNC, you decide to switch to the right tank to balance fuel for the approach and landing. You reach down and move the fuel selector from LEFT to RIGHT. Immediately — within 5 seconds — the engine begins to run rough. The RPM drops. You are on downwind, descending, 1,500 ft AGL, and the engine is losing power.
Aircraft: Piper Cherokee 180, solo, full fuel at preflight (both tanks), within limits. Lycoming O-360-A, carbureted, fixed-pitch prop, steam panel. Fuel selector: LEFT / RIGHT (no BOTH position). The right tank, which appeared one-quarter full at preflight, has not been used yet. Nothing was written up; the airplane was airworthy at departure.
- {'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 fuel management in the PA-28-180? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB DFW05FA028 (2004, FATAL): A Piper PA-28-180 on a night cross-country flight lost engine power due to fuel starvation from the pilot's failure to switch fuel tank position. The pilot had been on one tank for the entire flight and did not switch to the other tank en route. When the selected tank ran dry, the engine quit. The pilot attempted a forced landing in darkness but struck terrain. The probable cause was the pilot's in-flight mismanagement of the available fuel supply by failure to switch fuel tank position, with low ceilings and dark night conditions as contributing factors.
NTSB CEN24LA191 (2024): A Piper PA-28-180 on a cross-country personal flight lost engine power due to fuel starvation when the pilot failed to switch fuel tanks while distracted crossing a mountain range. The pilot was so focused on terrain avoidance that he neglected his fuel management procedure. The engine quit during descent. The pilot made a forced landing in a field.
NTSB ERA24LA116 (2024): A Piper PA-28-180 on an instructional flight experienced fuel starvation during the second approach to landing after the student pilot failed to switch fuel tanks despite instructor reminders. The student was distracted by the approach and did not execute the fuel tank switch. The engine quit on downwind. The flight instructor performed a forced landing to a highway.
NTSB CEN24LA108 (2024): A Piper PA-28-180 on an instructional flight experienced fuel starvation when the student pilot inadvertently positioned the fuel selector toward the OFF position during a fuel tank change. The student moved the selector slowly and it stopped in an intermediate position, restricting fuel flow. The engine quit. The flight instructor performed a forced landing to a field.
NTSB WPR24LA178 (2024): A Piper PA-28-180 lost engine power due to fuel starvation when the pilot placed the fuel selector in an intermediate position. The pilot was changing tanks but did not move the selector decisively to the full detent. The engine quit during descent. The pilot made a forced landing.
The common thread across all these accidents: the PA-28-180 fuel selector is LEFT / RIGHT only — there is NO BOTH position. The pilot MUST actively switch tanks to avoid starvation. Sight gauges are unreliable. Switching tanks during descent or approach is high-risk. The correct procedure is to switch tanks during cruise at a stable altitude, monitor the engine for 30 seconds to confirm the new tank is feeding, then continue. Switching tanks during descent, not confirming the new tank is feeding, and not switching back when the engine begins to rough are the chain of errors that kills PA-28-180 pilots.
This scenario is localized to KVNC, Venice, FL. The real accidents cited above occurred at other airports and in other circumstances — NOT at Venice Municipal. The scenario is localized to KVNC to make the off-field environment real and consequential for you as a student here. Off Runway 31's approach end (heading 315°), the off-field environment is open grassland and scattered trees — survivable but not ideal for a forced landing. Off Runway 13's approach end (heading 135°), the off-field environment is open grassland — better for a forced landing. The runway you are approaching matters.
Key lesson — The PA-28-180 fuel selector is LEFT / RIGHT only — there is NO BOTH position. Fuel starvation is the signature failure mode of this airplane. The correct procedure is to switch tanks during cruise at a stable altitude, monitor the engine for 30 seconds to confirm the new tank is feeding, then continue. Never switch tanks during descent, approach, or landing. If the engine begins to rough immediately after a tank switch, switch back to the previous tank immediately — do not troubleshoot other systems first. Sight gauges are unreliable; dip the tanks with a fuel stick before every flight. A tank that appears one-quarter full may actually be nearly empty.
Debrief — teaching points
The PA-28-180 fuel selector is LEFT / RIGHT only — there is NO BOTH position.
Unlike the Cessna 172, which has a BOTH position, the Piper Cherokee 180 requires the pilot to actively switch between LEFT and RIGHT tanks. There is no automatic feed from both tanks. Running a selected tank dry, selecting an empty tank, or selecting an intermediate/OFF position will cause fuel starvation and engine failure. This is the signature failure mode of the PA-28-180 and the reason it appears so frequently in the NTSB accident database.
Sight gauges are unreliable — dip the tanks with a fuel stick before every flight.
The fuel quantity gauges in the PA-28-180 are notoriously inaccurate. A tank that appears three-quarters full may actually be half full. A tank that appears one-quarter full may actually be nearly empty. The only reliable way to know the fuel quantity is to dip the tanks with a fuel stick before every flight. Relying on sight gauges alone has led to fuel starvation accidents in which the pilot believed fuel was available when it was not.
Switch fuel tanks during cruise at a stable altitude, not during descent or approach.
The correct time to switch fuel tanks in the PA-28-180 is during cruise at a stable altitude, when the airplane is in trim and the pilot has time to monitor the engine. After switching, monitor the engine for 30 seconds to confirm the new tank is feeding normally. Never switch tanks during descent, approach, or landing — these are high-workload phases and the pilot is already managing altitude and configuration. Switching tanks during descent is a distraction and a trap.
If the engine begins to rough immediately after a tank switch, switch back to the previous tank immediately.
Engine roughness immediately after a fuel tank switch indicates fuel starvation from the new tank — either the tank is empty, mechanically blocked, or the selector is in an intermediate position. The correct response is to switch back to the previous tank immediately. Do not troubleshoot other systems (carb heat, mixture, throttle). Do not try to diagnose the problem while descending. Switch back to the known-good tank, restore power, then assess the situation at a stable altitude.
The PA-28-180 fuel selector must be moved decisively to the full detent.
Moving the fuel selector slowly or stopping it between LEFT and RIGHT positions can restrict fuel flow and cause starvation even if both tanks have fuel. The selector must be moved decisively to the full detent on either LEFT or RIGHT. Confirm the detent is firm. A selector in an intermediate position is a known starvation trap in the PA-28-180 and has caused multiple accidents.
Establish a fuel management plan before flight and execute it disciplined.
Before takeoff, plan which tank you will use for takeoff and climb, when you will switch to the other tank, and which tank you will use for approach and landing. Write it down if necessary. Execute the plan at the planned times, not reactively. Monitor fuel consumption and tank depletion carefully. If you are distracted by weather, terrain, or other factors, do not skip the fuel management procedure — it is the most critical task in the PA-28-180.
Built from the real accident record
Scenario built from NTSB DFW05FA028 (2004 PA-28-180 fuel starvation / night cross-country), CEN24LA191 (2024 PA-28-180 failure to switch tanks en route), CEN24LA189 (2024 PA-28-180 improper selector position during descent), ERA24LA116 (2024 PA-28-180 fuel starvation on second approach), CEN24LA108 (2024 PA-28-180 selector toward OFF during tank change), and local-environment precedents GAA19CA534, DFW05CA087, ERA17LA205. Anonymized and localized to KVNC.
NTSB reports: NYC03LA096 · DFW05FA028 · MIA02FA144 · WPR24LA178 · CEN24LA191 · CEN24LA189 · ERA24LA116 · CEN24LA108 · WPR24LA167 · GAA19CA534 · DFW05CA087 · ERA17LA205
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.A — Preflight Assessment · 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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