Conventional gear aircraft on landing rollout experiences loss of aircraft control. Aircraft damaged...

Attributes
ACN	156273
Time
Date	199009
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mmh
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 13 flight time total : 186 flight time type : 14
ASRS Report	156273
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	other other : other
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I entered a right traffic pattern for mmh, runway 27, in an small aircraft taildragger. The pattern crosses a hill and I experienced light turbulence flying over it. On final approach I aligned with the runway centerline. There was a slight crosswind as indicated by the wind sock (8-10 KTS). I verified I had plenty of rudder correction available should the crosswind increase by depressing the right rudder and seeing I had more movement available. I had read in the facility directory that turbulence could be expected around the hill during crosswind conditions and planned my landing long and away from the hill accordingly. I touched down at the 2500' point (of 7000') and started rollout. The tail of the aircraft started to come out from behind me to the right. I maintained full right rudder, back elevator, ailerons slightly left wing down and retracted flaps. The plane came to rest on its nose and 2 main gear. In my opinion, this incident was caused by unusual wind conditions in and around the hill threshold. According to a pilot on the parallel taxiway at the time, it is his opinion the wind shift to the left rear quarter and lifted/pushed the tail around. This can be caused by the wind effects coming off the hillside that is so close to the runway.

Original NASA ASRS Text

Title: CONVENTIONAL GEAR ACFT ON LNDG ROLLOUT EXPERIENCES LOSS OF ACFT CTL. ACFT DAMAGED.

Narrative: I ENTERED A RIGHT TFC PATTERN FOR MMH, RWY 27, IN AN SMA TAILDRAGGER. THE PATTERN CROSSES A HILL AND I EXPERIENCED LIGHT TURB FLYING OVER IT. ON FINAL APCH I ALIGNED WITH THE RWY CENTERLINE. THERE WAS A SLIGHT XWIND AS INDICATED BY THE WIND SOCK (8-10 KTS). I VERIFIED I HAD PLENTY OF RUDDER CORRECTION AVAILABLE SHOULD THE XWIND INCREASE BY DEPRESSING THE RIGHT RUDDER AND SEEING I HAD MORE MOVEMENT AVAILABLE. I HAD READ IN THE FAC DIRECTORY THAT TURB COULD BE EXPECTED AROUND THE HILL DURING XWIND CONDITIONS AND PLANNED MY LNDG LONG AND AWAY FROM THE HILL ACCORDINGLY. I TOUCHED DOWN AT THE 2500' POINT (OF 7000') AND STARTED ROLLOUT. THE TAIL OF THE ACFT STARTED TO COME OUT FROM BEHIND ME TO THE RIGHT. I MAINTAINED FULL RIGHT RUDDER, BACK ELEVATOR, AILERONS SLIGHTLY LEFT WING DOWN AND RETRACTED FLAPS. THE PLANE CAME TO REST ON ITS NOSE AND 2 MAIN GEAR. IN MY OPINION, THIS INCIDENT WAS CAUSED BY UNUSUAL WIND CONDITIONS IN AND AROUND THE HILL THRESHOLD. ACCORDING TO A PLT ON THE PARALLEL TXWY AT THE TIME, IT IS HIS OPINION THE WIND SHIFT TO THE LEFT REAR QUARTER AND LIFTED/PUSHED THE TAIL AROUND. THIS CAN BE CAUSED BY THE WIND EFFECTS COMING OFF THE HILLSIDE THAT IS SO CLOSE TO THE RWY.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.