Power Loss on Initial Climb

Engine failure after touch-and-go at a Class C airport — the off-field environment dictates your landing site

Cessna 172R · Sarasota Bradenton International Airport (KSRQ) · Private · Takeoff / Initial Climb

The scenario

• {'label': 'Field', 'value': 'KSRQ · Sarasota Bradenton'}
• {'label': 'Runways', 'value': '4/22 · 14/32'}
• {'label': 'Elevation', 'value': '30 ft'}
• {'label': 'Aircraft', 'value': 'C172R'}
• {'label': 'Dominant phase', 'value': 'Takeoff / Landing'}

The decision

Before we get into the decision tree — what do you already know about engine failure on initial climb in the C172R? (Pick all that apply; this records your baseline.)

What the record shows

What the NTSB files show

Key lesson — Engine failure on initial climb in the C172R is rare but catastrophic when it happens. The decision to turn back to the runway, land ahead, or ditch must be made in seconds at 400 ft AGL. At KSRQ, Runway 04's departure environment is marginal (medium development, wooded wetland); Runway 22's is open water (ditching). Know the off-field environment off each runway end before you line up. Best glide is 65 KIAS. A straight-in approach to the runway is faster and safer than a full pattern at low altitude with a failing engine.

Debrief — teaching points

Engine failure on initial climb is rare but catastrophic — the decision window is seconds, not minutes.

The NTSB cases show that engine failure in the C172R can occur with little warning on initial climb. Some failures are mechanical (crankshaft fatigue, oil starvation), some are unexplained. The common factor is that the failure occurs at low altitude, when options are limited and the decision to turn back, land ahead, or ditch must be made in seconds. At 400 ft AGL, you have roughly 30 seconds of useful decision time. Scan the engine instruments continuously during initial climb. If oil pressure drops, oil temperature rises, or power is lost, make your landing-site decision immediately — do not delay.

The C172R is fuel-injected — if the engine is rough, check mixture and boost pump, not carb heat.

The C172R has a Lycoming IO-360-L2A fuel-injected engine. There is no carburetor and no carburetor heat. If the engine is running rough on initial climb, the first checks are mixture (lean if needed) and boost pump (confirm it is on). If the engine is still rough after these checks, scan the engine instruments for oil pressure, oil temperature, fuel pressure, and engine temperature. A rough engine with dropping oil pressure is a mechanical failure — not a fuel-system issue.

Know the off-field environment off each runway end before you depart.

At KSRQ, Runway 04's departure environment (heading 038°) is marginal — medium development and wooded wetland. A forced landing there is difficult but possible. Runway 22's departure environment (heading 218°) includes open water — a forced landing there is a ditching. Runway 14's departure environment (heading 134°) is poor — dense development. Runway 32's departure environment (heading 314°) is poor — medium development, dense development, and marsh. Before you line up on a runway, know what is ahead of you if the engine fails. This knowledge drives your landing-site decision at 400 ft AGL.

At 400 ft AGL with an engine failure, a 180° turn back to the runway is marginal — do it only if the engine partially recovers.

The 'impossible turn' debate is real. At 400 ft AGL in a C172R with a failing engine, a 180° turn back to the runway requires altitude and coordination you are marginal on. If the engine is still producing some power, the turn is doable. If the engine has failed completely, the turn may not be possible — you will lose altitude in the bank and may not make the runway. The safer option at 400 ft AGL with a complete engine failure is to land ahead in the marginal off-field environment or ditch in open water, rather than attempt a tight turn back to the runway.

Best glide is 65 KIAS — establish it immediately if power is lost.

Best glide speed for the C172R is 65 KIAS. This speed maximizes glide distance and gives the most time and distance to manage an engine failure. Establish 65 KIAS immediately if power is lost. Do not climb above it (you will lose altitude faster) or descend below it (you will also lose altitude faster). 65 KIAS is the speed to fly to the runway, to the marginal off-field landing site, or to the ditching area.

A straight-in approach to the runway is faster and safer than a full pattern at low altitude with a failing engine.

If you turn back to the runway with a failing engine at 350–400 ft AGL, do not attempt a full pattern (downwind, base, final). Advise the tower of the emergency and request a straight-in or modified approach. Fly a direct, descending approach at 65 KIAS best glide, add flaps as the runway is made, and touch down. The shortest path to the runway is the safest path when the engine is failing.

Full flaps for the slowest possible touchdown speed is the correct ditching procedure.

If you ditch in open water, use full flaps (30°) to slow the airplane to the slowest possible touchdown speed. The Vfe (maximum flap extended speed) for full 30° flaps in the C172R is 85 KIAS. Impact energy rises with the square of speed — the slowest possible touchdown speed matters most. Fuel selector BOTH, mixture rich, master off just before water contact, doors unlatched. A controlled ditching with full flaps is survivable; a high-speed ditching is not.

Built from the real accident record

Scenario built from NTSB CEN14LA333 (2014 C172R partial power loss on initial climb after touch-and-go), ANC18LA013 (2017 C172R total power loss shortly after takeoff), WPR18LA039 (2017 C172R crankshaft fatigue fracture during climb), and ERA14LA142 (2014 C172R oil pressure loss during climb). Real events occurred at other airports — NOT at KSRQ.

NTSB reports: CEN14LA333 · ANC18LA013 · WPR18LA039 · ERA14LA142

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

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