Power Loss on Climb — Peter O Knight
Engine failure at 300 ft AGL over Tampa Bay. Three runway ends are water. One decision, seconds to make it.
The scenario
Departing Peter O Knight Airport (KTPF), Tampa, FL — Runway 04, climbing out on a 037° heading. Elevation 8 ft MSL. It is a clear, calm morning: OAT 22°C, altimeter 30.01, winds calm. Visibility 10 SM. A routine local flight in a Diamond DA40 — solo, full fuel, within limits.
You are 300 ft AGL, climbing at 66 KIAS (Vy), heading 037°, when the engine begins to lose power. The tachometer is unwinding. The manifold pressure is dropping. You have seconds to assess and decide. The airport is behind you. Ahead and to the left is dense development (residential, commercial). To the right is open water — Tampa Bay. Directly ahead is a mix of low-density development and more water.
Aircraft: Diamond DA40, solo, full fuel (86 gallons usable), within CG and weight limits. Lycoming IO-360-M1A, fuel-injected, constant-speed prop, fixed gear, G1000 glass panel. The airplane was airworthy at departure; nothing was written up. The 100-hour inspection was completed 15 hours ago.
Pilot: you — a Private pilot, current, roughly 350 hours total, 120 hours in type (DA40). You are familiar with KTPF; this is a local flight. You did not notice any engine anomalies during the run-up. You did not brief an off-airport landing site before departure — a mistake you are about to regret.
The DA40 is a slippery airplane. Best glide is 73 KIAS. The constant-speed prop will help you stretch the glide if you manage it correctly. But you are at 300 ft AGL with three runway ends (22, 18, 36) that lead to open water. Runway 04 leads to dense development. The decision window is measured in seconds.
- {'label': 'Field', 'value': 'KTPF · Peter O Knight'}
- {'label': 'Runways', 'value': '4/22 · 18/36'}
- {'label': 'Elevation', 'value': '8 ft'}
- {'label': 'Aircraft', 'value': 'DA40'}
- {'label': 'Dominant phase', 'value': 'Landing / Approach'}
The decision
Before we get into the decision tree — what do you already know about the DA40's engine and forced-landing options at KTPF? (Pick all that apply; this records your baseline.)
What the record shows
What the NTSB files show
NTSB ERA23LA285 (2023): A Diamond DA40 NG experienced partial engine power loss during climb due to fatigue failure of the turbocharger housing. The turbocharger housing cracked, reducing intake air and causing the power loss. The pilot made a forced landing to a school field. The probable cause was fatigue failure of the turbocharger housing, which resulted in a partial loss of engine power.
NTSB ERA19LA272 (2019): A Diamond DA40 on a personal local flight experienced a partial loss of engine power on takeoff at 300 feet AGL. The pilot made a forced landing to a soybean field. The probable cause was a mechanic's failure to properly tighten the two clamps securing the flexible coupling from the intercooler to the induction inlet during a 100-hour inspection performed 15 hours before the accident. The loose coupling allowed air to escape, reducing intake pressure and causing the power loss.
NTSB ERA18LA241 (2018): A Diamond DA40 experienced total loss of engine power while on downwind approach to Maury County Airport. The pilot performed a forced landing to a field approximately 1 mile short of the runway threshold. The loss of engine power could not be determined based on postaccident examination, which revealed no evidence of mechanical malfunctions or failures. The probable cause was a total loss of engine power for reasons that could not be determined.
The common thread across all three accidents: engine failure in the DA40 at low altitude, with the pilot forced to land off-airport or barely making the runway. In ERA19LA272, the failure occurred at 300 feet AGL on takeoff — exactly the scenario you just flew. The mechanic's failure to tighten the induction coupling clamps was discovered only after the accident. The airplane had flown 15 hours since the 100-hour inspection without the problem being detected.
At KTPF, the geography makes this scenario particularly unforgiving: three of the four runway ends (22, 18, 36) lead to open water — Tampa Bay. An engine failure on departure from Runway 04 (heading 037°) leads to dense development. There is no 'easy' forced landing at KTPF if the engine fails at low altitude. The runway is the only safe option.
The real accidents cited above occurred at other airports and in other aircraft types — NOT at KTPF. The scenario is localized to KTPF to make the off-field environment real and consequential for you as a student here. The decision to return to the airport versus landing ahead is not academic — it is the difference between a runway landing and a ditching or a crash into development.
Key lesson — Engine failure in the DA40 at low altitude is survivable if you immediately establish best glide (73 KIAS), assess the engine, and make a rapid decision about landing site. At KTPF, three runway ends are water. The Runway 04 departure leads to dense development. The only safe option is to return to the airport and land on a runway. A 180° turn at 300 ft AGL is tight but workable if you do it immediately. Delay costs altitude. The constant-speed prop helps — reduce RPM to lower drag and extend glide distance. But the decision to turn back must be made in the first 10–15 seconds of the failure, not after you have descended to 150 ft AGL.
Debrief — teaching points
Engine failure at 300 ft AGL is a forced-landing scenario — not a 'return to the airport' scenario.
At 300 ft AGL with a failing engine, you have roughly 60–90 seconds of glide time. A 180° turn back to the airport requires 80–100 ft of altitude and 20–30 seconds of time. The math is tight. If you delay the decision — if you spend 10 seconds diagnosing the fuel selector or trying to climb out of the problem — you will not have enough altitude to complete the turn. The decision to turn back must be made in the first 10–15 seconds of the failure. Establish best glide (73 KIAS) immediately, assess the engine briefly, and decide: turn back or land ahead. Delay kills.
The DA40 fuel selector is LEFT / RIGHT — there is no BOTH position.
Unlike some Cessnas, the DA40 has no BOTH position on the fuel selector. You must actively manage LEFT and RIGHT tanks. A mis-set selector or an empty selected tank can cause fuel starvation even with fuel in the other tank. During the run-up, confirm both tanks are full and the selector is set to the fuller tank. In flight, switch tanks every 30 minutes or as directed by the POH. If the engine fails and you suspect fuel starvation, switch to the other tank immediately — but do not waste time on this diagnosis if the engine is clearly failing for another reason.
The constant-speed prop is an asset in a forced landing — use it.
The DA40's constant-speed prop allows you to reduce RPM and lower drag, extending glide distance. If the engine is failing and you are committed to a forced landing, reduce prop RPM (pull the prop control back) to lower drag. This will extend your glide distance by 10–15% and give you more time and distance to find a landing site. Do not reduce RPM so much that you lose control authority — maintain at least 1,000–1,200 RPM for adequate control response.
At KTPF, three runway ends are water. The Runway 04 departure is the only one that leads to land.
Runway 22, 18, and 36 all have open water (Tampa Bay) off their departure ends. An engine failure on departure from those runways is a ditching. Runway 04's departure (heading 037°) leads to dense development — difficult but possible for a forced landing. If you are departing Runway 04 and the engine fails at low altitude, you have a chance to land in development. If you are departing Runway 22, 18, or 36 and the engine fails, you are ditching. Know this before you line up on the runway.
Best glide in the DA40 is 73 KIAS — establish it immediately and hold it.
Best glide speed for the DA40 at gross weight is 73 KIAS. This speed maximizes glide distance and gives you the most time and distance to manage the emergency. Establish 73 KIAS immediately when the engine fails. Do not climb, do not descend, do not slow down. Fly 73 KIAS until the wheels touch down. This is the single most important thing you can do to extend your glide distance and your options.
Built from the real accident record
Scenario built from NTSB ERA23LA285 (2023 DA40 NG turbocharger fatigue / partial power loss on climb), ERA19LA272 (2019 DA40 induction coupling failure / forced landing at 300 ft AGL), and ERA18LA241 (2018 DA40 total power loss on approach). Anonymized and localized to KTPF.
NTSB reports: ERA23LA285 · ERA19LA272 · ERA18LA241
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
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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