Vibrations, structural popping/groaning, control problems
NOTE: If the aircraft is uncontrollable, EJECT, following NATOPS
NOTE: If the aircraft is controllable after a midair collision, bird strike, or
any other situation where you suspect structural damage, slow flight the
damaged aircraft at altitude following NATOPS procedures (controllability
B. Procedures (Controllability Check)
NOTE: Considerations for conducting a controllability check are: severity of
damage/malfunction, fuel remaining, flight conditions (VFR vs IFR), field
landing facilities, other existing emergencies, and pilot experience.
Climb as required, maintaining flying airspeed and proceed toward point of
When possible, obtain a visual inspection by another aircraft to assist in
Slow the aircraft to 200 KIAS in 10-KIAS increments
Landing gear - DOWN
Slow the aircraft in 5-KIAS increments; slow to an airspeed at which flight
controllability starts to become marginal (no slower than optimum AOA).
Increase airspeed 10 KIAS and use as a minimum airspeed for the
duration of the flight.
If no damage is evident in the flap and slat area, extend the flaps to 1/2
then FULL and check controllability. If damage to slat area but no
damage to the flap area consider a no-flap arrested landing. However, if
minimum airspeed is too high for landing, extend flaps with EMERG
FLAPS switch. Flap extension is at pilot discretion.
(10-95) Change 5