Saturday, February 2, 2019

American Aviation AA-1A, N9341L: Accident occurred June 23, 2016 at Sky Ranch Airport (TN98), Knoxville, Tennessee

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Nashville, Tennessee

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf


Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


https://registry.faa.gov/N9341L


Location: Knoxville, TN
Accident Number: ERA16LA228
Date & Time: 06/23/2016, 0830 EDT
Registration: N9341L
Aircraft: AMERICAN AVIATION AA1
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 Serious
Flight Conducted Under: Part 91: General Aviation - Personal 

On June 23, 2016, at 0830 eastern daylight time, an American Aviation AA-1A, N9341L, was substantially damaged when it impacted a parked vehicle and a hanger during landing at the Sky Ranch Airport (TN98), Knoxville, Tennessee. The private pilot was seriously injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight that departed TN98 about 0730. The flight was conducted under the provisions of 14 Code of Federal Regulations Part 91.

According to a Federal Aviation Administration (FAA) inspector, the airplane landed on the left side of the centerline on runway 19, a 2,100-foot-long, 150-foot-wide, turf runway. A set of tire impressions in the turf extended from the left side of the runway in a relatively straight line, across a paved taxiway to the struck vehicle, and then continued to the airplane's final resting location at a hangar, with no indication of braking. Examination of the wreckage did not reveal evidence of any preimpact mechanical malfunctions

The airplane came to rest with the nose section embedded in the north wall of a hanger that was located about 800 feet from the approach end of the runway, and 220 feet to the left of the runway centerline. The engine cowling and wing leading edges were crushed aft. The windscreen was fragmented and completely separated from the fuselage. The firewall was displaced and the instrument panel was buckled between the left control yoke and the panel center. The skin under the wings and along the empennage was wrinkled.

The pilot reported that he has been flying locally for about 1 hour and he recalled slowing the airplane to about 65 miles per hour for landing, The pilot stated that after touchdown, he "lost control of the airplane." The pilot added that there were no preimpact mechanical malfunctions with the airplane. He reported a total flight experience of 585 hours; of which, 16 hours were in the same make and model as the accident airplane. All 16 hours were flown within the 90-day period preceding the accident.

McGhee Tyson Airport (TYS), Knoxville, Tennessee, was located about 4 miles south of the accident site. The recorded wind at TYS, at 0853, was from 220° at 15 knots. 

Pilot Information

Certificate: Private
Age: 68, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 03/04/2015
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time:  585 hours (Total, all aircraft), 16 hours (Total, this make and model), 585 hours (Pilot In Command, all aircraft), 16 hours (Last 90 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: AMERICAN AVIATION
Registration: N9341L
Model/Series: AA1 A
Aircraft Category: Airplane
Year of Manufacture: 1971
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: AA1A-0041
Landing Gear Type: Tricycle
Seats: 2
Date/Type of Last Inspection: 12/31/2015, Annual
Certified Max Gross Wt.: 1561 lbs
Time Since Last Inspection: 15 Hours
Engines: 1 Reciprocating
Airframe Total Time: 3306 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: Installed, not activated
Engine Model/Series: O-320
Registered Owner: On file
Rated Power: 160 hp
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KTYS, 980 ft msl
Distance from Accident Site: 4 Nautical Miles
Observation Time: 0853 EDT
Direction from Accident Site: 199°
Lowest Cloud Condition: Few / 5000 ft agl
Visibility:  10 Miles
Lowest Ceiling: Broken / 25000 ft agl
Visibility (RVR):
Wind Speed/Gusts: 15 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 220°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.09 inches Hg
Temperature/Dew Point: 28°C / 19°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Knoxville, TN (TN98)
Type of Flight Plan Filed: None
Destination: Knoxville, TN (TN98)
Type of Clearance: None
Departure Time: 0730 EDT
Type of Airspace:

Airport Information

Airport: SKY RANCH (TN98)
Runway Surface Type: Grass/turf
Airport Elevation: 830 ft
Runway Surface Condition:
Runway Used: 19
IFR Approach: None
Runway Length/Width: 2100 ft / 150 ft
VFR Approach/Landing: Straight-in

Wreckage and Impact Information


Crew Injuries: 1 Serious
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Serious
Latitude, Longitude:  35.885556, -83.956667 (est)

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