ANC13LA065

NTSB accident investigation · Aeronca 15AC · Talkeetna, AK · July 13, 2013

Accident · No injuriesLimited investigationFinal report
Date
July 12, 2013, 22:00 local (Jul 13, 2013, 06:00 UTC)
Place
Talkeetna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1374HAeronca 15AC
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 2015
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA - Anchorage FSDO
FAA report
20130712014839A
Case key
87495

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s loss of airplane control during landing for reasons that could not be determined based on the available evidence.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAeronca 15AC: 2 casesAll aircraft: 9,295 casesProbable cause
Maintenance/inspectionsAircraft › Aircraft handling/service · Not inspectedAeronca 15AC: 1 caseAll aircraft: 103 cases
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedAeronca 15AC: 2 casesAll aircraft: 3,958 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

During landing, the tailwheel-equipped airplane ground looped and struck trees off the left side of the runway. The pilot reported that the airplane's right brake was "ineffective" during the landing; however, the airplane was partially disassembled and placed into storage before a detailed postaccident examination of the brake assembly could be performed. Therefore, it could not be determined if a brake anomaly occurred. The pilot stated that the flight was to be the airplane's last flight before being placed in permanent storage and that the airplane had not received an annual inspection for several years. A brake inspection is a routine part of an annual inspection; therefore, it is possible that, if the airplane had received an annual inspection and a brake anomaly did exist, it could have been detected and corrected before the accident flight.

Factual narrative

On July 12, 2013, about 2200 Alaska daylight time, an Aeronca 15AC, N1374H, veered off the left side of runway 34 during landing and struck trees at Talkeetna Village Strip Airport in Talkeetna, Alaska. The commercial pilot was not injured, and the airplane sustained substantial damage. The personal flight was operated under the provisions of 14 Code of Federal Regulations (CFR) Part 91 with no flight plan filed. Visual meteorological conditions prevailed. The flight departed from Summit Airstrip near Cantwell, Alaska, about 2000. According to the pilot, the airplane's right brake "went soft" during landing and was "ineffective," and the airplane ground looped to the left. Photographs and information provided by the Alaska State Troopers who responded to the scene showed that the airplane struck trees on the west side of the airstrip and sustained damage to the right wing. A Federal Aviation Administration inspector observed the damaged airplane shortly after the accident; however, the airplane was subsequently disassembled and placed into storage before a detailed examination of the brake assembly could be performed. The pilot stated that the flight was to be the airplane's last flight before permanent storage. The pilot reported that the airplane's most recent annual inspection was performed April 26, 2005. Title 14 CFR 91.409 specifies that no person may operate an aircraft unless, within the preceding 12 calendar months, the aircraft has received an annual inspection and has been approved for return to service by a mechanic with an inspection authorization. Title 14 CFR Part 43, Appendix D, contains a general list of items to be checked during an annual inspection, which includes in section (e), the landing gear group, "all units -- for poor condition and insecurity of attachment," "hydraulic lines -- for leakage," and "brakes -- for improper adjustment."

Aircraft

Registration
N1374H
Reported as
Aeronca 15AC
Category
Airplane
Serial number
15AC-423
Built
1949
Airframe hours
4,485
Engine
Cont Motor C145 SERIES, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Schwab Max Charles
Registered owner
Schwab Max Charles
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 26, 2005
Departed
UMM · Summit, AK
Destination
AK44 · Talkeetna, AK
Airport
AK44 · Talkeetna Village Strip, runway 34, 1,600 × 30 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
May 1, 2013
Seat
Left
Restraint
3-point
Flight hours
6,900 total · 2,000 in this make and model · 6,900 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 46 °F
Altimeter
29.87 inHg
Observed at
PATK, 1 nm away

Docket · 4

The files NTSB released with the investigation on January 21, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.6 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.