GAA16CA341

NTSB accident investigation · Bellanca 8KCAB · Freemont Island, UT · June 20, 2016

Accident · No injuriesData collectionFinal report
Date
June 20, 2016, 10:30 local (15:30 UTC)
Place
Freemont Island, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8SFBellanca 8KCAB
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report December 5, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20160620009729A
Case key
93486

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

On this page

Probable cause

The flight instructor's failure to maintain directional control during the landing roll, resulting in an impact with an unknown object during aborted landing and consequent ground impact.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedBellanca 8KCAB: 8 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Instructor/check pilotBellanca 8KCAB: 7 casesAll aircraft: 9,295 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Ability to respond/compensateBellanca 8KCAB: 2 casesAll aircraft: 1,199 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentBellanca 8KCAB: 2 casesAll aircraft: 1,199 cases

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

The flight instructor in the tailwheel-equipped airplane reported that he was demonstrating flight maneuvers to the passenger when the oil filler cowl door unlatched in flight. The flight instructor reported that he feared for their safety, decided to land as soon as possible, and overflew a nearby island airstrip to verify wind direction and identify potential obstacles. During the precautionary landing on the 2,000 foot long by 15 foot wide airstrip, the flight instructor reported that as the airplane slowed and the tailwheel was lowered to the ground, the airplane encountered a wind gust from the left, and the airplane drifted to the right side of the narrow runway. The flight instructor reported that, "it became clear that I could not keep the aircraft on the runway surface, I initiated a go-around." During the aborted landing, the right main landing gear impacted an unknown object, which slowed the airplane's momentum, and the airplane settled to the ground and slid to a stop on the fuselage. The airplane sustained substantial damage to the horizontal stabilizer cables and the right aileron. Inspection of the oil filler cowl latch was conducted by the Federal Aviation Administration Aviation Safety Inspector assigned to this accident and he found no failure or degradation of the locking mechanism or the latch assembly. Meteorological conditions reported for the airstrip where the accident occurred, reported that about the time of the accident the wind was out of the north-northeast at 7 knots gusting to 9 knots. The flight instructor was landing to the southeast.

Factual narrative

The flight instructor in the tailwheel-equipped airplane reported that he was demonstrating flight maneuvers to the passenger when the oil filler cowl door unlatched in flight. The flight instructor reported that he feared for their safety, decided to land as soon as possible, and overflew a nearby island airstrip to verify wind direction and identify potential obstacles. During the precautionary landing on the 2,000 foot long by 15 foot wide airstrip, the flight instructor reported that as the airplane slowed and the tailwheel was lowered to the ground, the airplane encountered a wind gust from the left, and the airplane drifted to the right side of the narrow runway. The flight instructor reported that, "it became clear that I could not keep the aircraft on the runway surface, I initiated a go-around." During the aborted landing, the right main landing gear impacted an unknown object, which slowed the airplane's momentum, and the airplane settled to the ground and slid to a stop on the fuselage. The airplane sustained substantial damage to the horizontal stabilizer cables and the right aileron. Inspection of the oil filler cowl latch was conducted by the Federal Aviation Administration Aviation Safety Inspector assigned to this accident and he found no failure or degradation of the locking mechanism or the latch assembly. Meteorological conditions reported for the airstrip where the accident occurred, reported that about the time of the accident the wind was out of the north-northeast at 7 knots gusting to 9 knots. The flight instructor was landing to the southeast.

Aircraft

Registration
N8SF
Reported as
Bellanca 8KCAB (NO SERIES)
Category
Airplane
Serial number
59-73
Built
1972
Airframe hours
2,422.2
Engine
Lycoming IO-320, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Bountiful Flight, doing business as Bountiful Flight School
Registered owner
Jason Clark
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 25, 2016
Departed
BTF · Woods Cross, UT
Destination
BTF · Woods Cross, UT
Equipment
Stall warning system, Handheld GPS

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
28
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
May 6, 2016
Seat
Front
Restraint
5-point
Flight hours
475 total · 5 in this make and model · 390 as pilot in command · 100 in the last 90 days · 30 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 7 knots, gusting 9
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 36 °F
Altimeter
25.12 inHg

Docket · 4

The files NTSB released with the investigation on October 17, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.6 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.