ACA Citabria Explorer 7ECA - Partial Power Loss; Abnormal Oil Indications; Landing Emergencies

Citabria 2-4
NOTE
The engine starter may be engaged in flight should the engine
stop wind milling.
PARTIAL POWER LOSS/ROUGH RUNNING
1) Follow the engine air restart procedures
2) Land as soon as practical using “Precautionary Landing Approach” procedures
Carburettor icing is indicated if a gradual RPM loss is noticed. The carburettor/alternate air
should be FULL HOT as long as suspected icing conditions exist.
ABNORMAL OIL PRESSURE/TEMPERATURE INDICATIONS
Oil pressure and temperature, problems are usually related with one affecting the other. Before
any drastic action is taken, cross check other engine instruments and control settings in an
attempt to determine the source of the problem.
High oil temperature is generally a result of loss of oil, overheating (note CHT if available) or a
malfunctioning oil cooler bypass valve. If the situation remains unchecked, oil pressure usually
drops resulting in possible engine damage. Power should be reduced while maintaining cruise
airspeed; place mixture in FULL RICH position and land as soon as practical.
Little or no oil pressure is usually caused by a failed pressure relief valve, pump, loss of oil,
clogged oil line, high oil temperature or a defective gauge. A landing should be made as soon
as practical using minimum RPM changes. Plan a “Precautionary Landing Approach” as
complete engine failure is possible at any time.
LANDING EMERGENCIES
PRECAUTIONARY LANDING APPROACH
A precautionary landing approach should be used whenever power is still available but a
complete power failure is considered imminent. Maintain a higher and closer pattern than
normal in attempt to remain in gliding distance of the intended touchdown point Use the normal
landing procedures in addition:
1) Airspeed — 65 MPH recommended (60 MPH minimum)
2) Throttle — CLOSED when in gliding distance of runway
3) Flaps — LOWER AS NEEDED for increase in approach descent angle (7GCBC)
NOTE
Slipping the aircraft by cross controlling the rudder and ailerons will increase the rate of
descent both with, or without flaps. If a crosswind exists, place the lower wing into the wind.