Friday, May 24, 2019

Aeronca 11AC Chief, N9791E: Incident occurred May 23, 2019 -and- Accident occurred July 26, 2016 at Tacoma Narrows Airport (KTIW), Pierce County, Washington

Federal Aviation Administration / Flight Standards District Office; Seattle, Washington

May 23, 2019:  Veered off the runway.

Gig Harbor Light Sport Flying Club

https://registry.faa.gov/N9791E

Date: 23-MAY-19
Time: 00:00:00Z
Regis#: N9791E
Aircraft Make: AERONCA
Aircraft Model: 11AC
Event Type: INCIDENT
Highest Injury: UNKNOWN
Aircraft Missing: No
Damage: UNKNOWN
Activity: CORPORATE
Flight Phase: LANDING (LDG)
Operation: 91
City: TACOMA
State: WASHINGTON

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

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

Aviation Accident Data Summary - National Transportation Safety Board:  https://app.ntsb.gov/pdf

Location: Gig Harbor, WA
Accident Number: GAA16CA410
Date & Time: 07/26/2016, 1500 PDT
Registration: N9791E
Aircraft: AERONCA 11AC
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Instructional

Analysis

The student pilot reported that while on his fourth landing in the tailwheel equipped airplane, after touchdown the airplane was "a little out of alignment" and he "started to lose control". The student pilot further reported that he advanced the throttle to attempt an aborted landing but was unable to regain control of the airplane, the airplane veered off the runway to the left, he then decreased the throttle and the airplane rolled back onto the runway.

A post-accident examination of the airplane revealed that the right wing tip struck the ground, which caused substantial damage to the right wing rear spar.

The pilot reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's failure to maintain directional control during landing, and subsequent wing tip strike, which resulted in substantial damage to the rear spar.

Findings

Aircraft
Directional control - Not attained/maintained (Cause)

Personnel issues
Aircraft control - Student pilot (Cause)

Factual Information

History of Flight

Landing
Abnormal runway contact
Loss of control on ground (Defining event)
Attempted remediation/recovery
Runway excursion
Dragged wing/rotor/float/other

Student Pilot Information

Certificate: Student
Age: 17, Male
Airplane Rating(s): None
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s):  
Toxicology Performed: No
Medical Certification: None
Last FAA Medical Exam:
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time:  (Estimated) 41 hours (Total, all aircraft), 41 hours (Total, this make and model), 4 hours (Pilot In Command, all aircraft), 4 hours (Last 90 days, all aircraft), 4 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: AERONCA
Registration: N9791E
Model/Series: 11AC
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 11AC-1438
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection:  Annual
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: CONT MOTOR
ELT: Installed, not activated
Engine Model/Series: A&C65 SERIES
Registered Owner: On file
Rated Power: 65 hp
Operator: On file
Operating Certificate(s) Held: Pilot School (141) 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KTIW, 315 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time:  2153 UTC
Direction from Accident Site: 81°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 5 knots /
Turbulence Type Forecast/Actual: / None
Wind Direction: 290°
Turbulence Severity Forecast/Actual: / N/A
Altimeter Setting: 30.14 inches Hg
Temperature/Dew Point: 21°C / 13°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Gig Harbor, WA (TIW)
Type of Flight Plan Filed: None
Destination: Gig Harbor, WA (TIW)
Type of Clearance: VFR
Departure Time: 1430 PDT
Type of Airspace: Class D

Airport Information

Airport: TACOMA NARROWS (TIW)
Runway Surface Type: Asphalt
Airport Elevation: 294 ft
Runway Surface Condition: Dry
Runway Used: 17
IFR Approach: None
Runway Length/Width: 5002 ft / 100 ft
VFR Approach/Landing: Touch and Go; Traffic Pattern 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  47.267778, -122.578056 (est)

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