|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : cdw|
|Altitude||agl bound lower : 0|
agl bound upper : 0
|Operator||general aviation : personal|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Fixed Gear|
|Flight Phase||landing other|
|Function||flight crew : single pilot|
|Qualification||pilot : instrument|
pilot : private
|Experience||flight time last 90 days : 20|
flight time total : 500
|Independent Detector||other flight crewa|
|Resolutory Action||none taken : unable|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
This is not an aircraft accident report. After flying nonstop from mdw to cdw during the landing roll out, aircraft flew off (became airborne) on runway 22 and started to porpoise uncontrollably. Only damage sustained was to propeller tips which struck ground at idle power. Flaps were fully extended during landing maneuver. Touchdown was smooth and uneventful, but aircraft became airborne again during rollout. Aircraft trimmed for landing with full flaps should have decelerated rapidly. Other aviation sources describe porpoising on landing as a common fault in this type aircraft although I am unaware of this phenomenon.
Original NASA ASRS Text
Title: GA SMA BOUNCED A LNDG THEN HIT PROPELLERS ON THE RWY DURING RECOVERY.
Narrative: THIS IS NOT AN ACFT ACCIDENT RPT. AFTER FLYING NONSTOP FROM MDW TO CDW DURING THE LNDG ROLL OUT, ACFT FLEW OFF (BECAME AIRBORNE) ON RWY 22 AND STARTED TO PORPOISE UNCONTROLLABLY. ONLY DAMAGE SUSTAINED WAS TO PROP TIPS WHICH STRUCK GND AT IDLE PWR. FLAPS WERE FULLY EXTENDED DURING LNDG MANEUVER. TOUCHDOWN WAS SMOOTH AND UNEVENTFUL, BUT ACFT BECAME AIRBORNE AGAIN DURING ROLLOUT. ACFT TRIMMED FOR LNDG WITH FULL FLAPS SHOULD HAVE DECELERATED RAPIDLY. OTHER AVIATION SOURCES DESCRIBE PORPOISING ON LNDG AS A COMMON FAULT IN THIS TYPE ACFT ALTHOUGH I AM UNAWARE OF THIS PHENOMENON.