C4104 "Fam 8" |
Hard landings (memory items listed as *) In the event of a hard landing where possibility of gear or structural damage is suspected...
If on the runway:
FULL STOP - EXECUTE*
If airborne:
CAUTION - Minimize use of brakes to avoid additional loads that may collapse gear. Do not attempt to taxi the aircraft.
Airborne landing gear inspections:
WARNING - Below 2000' AGL, insufficient altitude may preclude a successful bailout in the event of a midair collision. If conditions preclude VFR operations at or above 2000' AGL, an airborne visual check is not recommended. Obtain a visual check from tower if possible.
WARNING - Abrupt changes in airspeed, attitude, and altitude shall be avoided.
Landing gear emergency extension:
(If gear position indication does not match the position of the
landing gear handle or the red (in transit) light is illuminated): Regardless
of electrical power availability, the landing gear crank should be operated
until it cannot be moved further. Check landing gear position indivcators fully
exteded conditions if electrical power is still available.
WARNING - The handcrank must be disengaged from the driveshaft after extending the gear manually; otherwise, subsequent operation of the gear electrically will cause the crank to spin rapidly with possible injury to personnel and damage to the system. Any spinning of handcrank shall be reported to maintenance personnel.
CAUTION - The landing gear emergency extension system is designed and stressed only for extension and should not be used in an attempt to retract the gear except in an extreme situation.
Unsafe landing gear position indication:
If a landing gear problem is encountered or suspected, the gear should never
be cycled because reextending the gear could aggravate the problem.
NOTE - Should the nosegear fail to extend fully with both main gear down & locked, landing should be attempted with both main gear down and locked using the appropriate procedures.
If one main gear fails to fully extend, a gear up landing is preferred to a landing with one main gear retracted. If gear position does not match the position of the landing gear handle, or the red (in trancit) light is illuminated...
Landing gear unsafe emergency landing:
If unsafe landing gear position indication persists with the gear handle down
and a visual check confirms landing gear unsafe, proceed with one of the following
procedures...
NOTE - Should the nosegear fail to extend fully with both main gear down and locked, landing should be attempted with both main gear down. If one main gear fails to fully extend, a gear up landing is preferred to a landing with one main gear retracted.
Should the nosegear fail to extend fully:
If the nosegear should fail to extend fully and is free swinging, it may be possible to achieve an overcenter locked position by using the following procedures:
- Flaps - DOWN
- Airspeed - SLOW TO 80 KIAS
- Make gentle pitching oscillations using positive g’s to swing the nosegear into the locked position.
- Land using LANDING WITH NOSEGEAR RETRACTED procedures outlined below.
- If the nosegear supports the aircraft, smoothly apply full forward stick to maintain pressure on the nosegear and do not allow the nosewheel to bounce on the runway.
Landing with nosegear retracted:
- Oxygen mask - DON
- Loose items in cockpit - SECURE
- Parachute - UNFASTENED
- Harness - LOCKED
- Make normal approach, full flaps
- Canopy - EMERGENCY OPEN
NOTE - Dirt and loose objects propelled by the air blast may restrict visibility.- Condition lever - FUEL OFF JUST PRIOR TO TOUCHDOWN
- Emergency fuel shutoff handle - PULL
- Battery switch - OFF
- After the main gear touches down, hold the nose up with aft stick. As the stick approaches full aft and elevator authority is lost during the rollout, lower the nose gently to the deck while pitch control is still available.
When aircraft comes to a rest:- Harness - RELEASE
- Evacuate aircraft and meet upwind with co-pilot (be sure to look out for emergency vehicles).
Landing with gear up:
If the gear fails to extend, a wheels-up landing can be made on either hard or soft ground; however, a hard surface is preferable since sod tends to roll up into chunks, damaging the underside of the fuselage.
- Oxygen mask - DON
- Loose items in cockpit - SECURE
- Parachute - UNFASTENED
- Harness - LOCKED
- Make normal approach, full flaps.
NOTE - If crosswind component is out of full-flap limitations (15 kts max FF), consideration shall be given to making a no-flap approach. (22 knots max NF)- Canopy - EMERGENCY OPEN
NOTE - Dirt and loose objects propelled by the air blast may restrict visibility.- Condition lever - FUEL OFF JUST PRIOR TO TOUCHDOWN
NOTE - The aircraft will float significantly in ground effect with the gear up and the propeller in feather. Plan the approach accordingly.- Emergency fuel shutoff handle - PULL
- Battery switch - OFF
When aircraft comes to a rest:- Harness, cords, mask - RELEASE
- Evacuate aircraft and meet upwind with co-pilot (be sure to look out for emergency vehicles).
Landing with one main gear retracted:
A gear-up landing is preferred to a landing with one main gear retracted. However, if such a landing cannot be avoided, proceed as follows:
- Oxygen mask - DON
- Loose items in cockpit - SECURE
- Parachute - UNFASTENED
- Harness - LOCKED
- Make normal approach, full flaps. Plan to land on the extended gear side of the runway.
- Canopy - EMERGENCY OPEN
NOTE - Dirt and loose objects propelled by the air blast may restrict visibility.- Condition lever - FUEL OFF JUST PRIOR TO TOUCHDOWN
- Emergency fuel shutoff handle - PULL
- Battery switch - OFF
- Touch down smoothly on the extended main gear and hold the opposite wing up with aileron as long as possible after the nosewheel touches down.
- When the wingtip strikes the ground, apply maximum opposite brake pressure.
When aircraft comes to a rest:- Harness - RELEASE
- Evacuate aircraft and meet upwind with co-pilot (be sure to look out for emergency vehicles).
Inboard landing gear door position annunciator light illuminated:
Aerodynamic pressures may cause “gapping” of the inboard landing gear doors illuminating the LH RH OPEN light.
- Reduce airspeed. If safe indication is obtained do not exceed speed at which indication changed to unsafe. Note occurrence in appropriate maintenance form.
- If unsafe indications persist with airspeed below 150 KIAS, land as soon as practical using normal procedures.
CAUTION - Once gear has been lowered, raising the gear may aggrivate the problem.
Flap failures - There are no provisions for emergency flap operation. If wing flaps become inoperative and function cannot be restored, land the aircraft in the existing flap configuration.
Split-flap condition:
1) Reset flap lever to prior position.
2) Pull FLAP PWR circuit breaker (2nd row, 2nd back from end).
3) Land as soon as practical.NOTE - The aircraft is fully controllable in the split-flap configuration. With use of full available aileron trim, control pressures are light. Consideration should be made for using increased landing speeds to enhance controllability.
Flap limit switch failure:
1) If either flap limit switch should fail, the resultant torque overload on the flap motor may trip the FLAP PWR circuit breaker.
2) Do no attempt to reset the FLAP PWR circuit breaker. Land the aircraft in the existing flap configuration.
Emergency orbit pattern
This pattern will be used for landing gear emergencies requiring visual inspection
or special assistance. It is also used for aircraft unable to maintain 170 kts
in the entry channel (on course rules). This racetrack pattern is oriented over
the duty runway. Pattern altitude is 2500’ MSL weather permitting. Pattern airspeed
is 120 kts. Turns in the pattern will conform with break direction for the various
runways.
Entry to the emergency orbit pattern from the operating area will be made by:
none
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