ANC08LA058

NTSB accident investigation · Bellanca 7GCBC · Tetlin, AK · April 26, 2008

Accident · No injuriesLimited investigationFinal report
Date
April 26, 2008, 10:30 local (18:30 UTC)
Place
Tetlin, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N10987Bellanca 7GCBC
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 5, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration (Operations), Federal Aviation Administration (Airworthiness)
FAA report
20080426833909A
Case key
67904

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 instructor pilot's inadequate supervision of the student, resulting in a loss of control while landing.

Findings · 2

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 7GCBC: 19 casesAll aircraft: 3,958 casesProbable cause
Attention/monitoring: monitoring other personPersonnel issues › Psychological · Instructor/check pilotBellanca 7GCBC: 2 casesAll aircraft: 200 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

The certificated flight instructor (CFI) was providing flight instruction to a student pilot in a tailwheel-equipped airplane. The CFI said that during touchdown on the gravel runway, the student pilot bounced the airplane, and as the main wheels touched down again the airplane veered to the left. The CFI said that he took control of the airplane in an attempt to realign it, but it continued to veer to the left and he applied full engine power to abort the landing. The airplane became airborne momentarily, but descended into an area on the left side of the runway and collided with terrain. According to a Federal Aviation Administration airworthiness inspector, no preaccident mechanical anomalies were revealed during his postaccident inspection.

Factual narrative

On April 26, 2008, about 1030 Alaska daylight time, a Bellanca 7GCBC airplane, N10987, sustained substantial damage during an aborted landing at the Tetlin Airport, Tetlin, Alaska. The airplane was being operated as a visual flight rules (VFR) local area instructional flight under Title 14, CFR Part 91, when the accident occurred. The first pilot, seated in the rear seat, a certificated flight instructor (CFI), and the second pilot, seated in the front seat, a student pilot, were not injured. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The flight originated at the Tok Airport, Tok, Alaska, about 0900.

During a telephone conversation with the National Transportation Safety Board investigator-in-charge on April 26, the CFI reported that he was providing primary flight instruction to a student in a tailwheel-equipped airplane. He said that before the accident landing, the student had completed a series of touch-and-go landings on runway 26, a gravel runway. During the accident landing the student allowed the airplane to bounce slightly, and as the main wheels touched down again, the airplane veered to the left. The CFI said that he took control of the airplane in an attempt to realign it, but it continued to veer to the left, and he applied full engine power in an attempt to abort the landing. The airplane became airborne momentarily, but descended into an area on the left side of the runway, and collided with an area of rough and uneven terrain. The airplane came to rest upright, and sustained structural damage to the wings, wing lift struts, fuselage, and empennage. The CFI noted that winds were calm at the time of the accident.

A Federal Aviation Administration (FAA) airworthiness inspector from the Fairbanks Flight Standards District Office inspected the airplane after it was recovered, and reported that no preaccident mechanical anomalies were revealed.

Aircraft

Registration
N10987
Reported as
Bellanca 7GCBC
Category
Airplane
Serial number
330-72
Airframe hours
1,552
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Duwayne W. Young
Registered owner
Andreassen Ray E
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 22, 2007
Departed
6K8 · Tok, AK
Destination
3T3 · Tetlin, AK
Airport
3T4 · Tetlin Airport, runway 26, 3,300 × 75 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
50
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
April 21, 2008
Seat
Rear
Flight hours
1,250 total · 22 in this make and model · 1,250 as pilot in command · 41 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours
Role
Student pilot
Age
63
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Front
Flight hours
72 total · 18 in this make and model · 5 as pilot in command · 7 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
14,000 ft broken
Temperature
34 °F, dew point 25 °F
Altimeter
29.72 inHg
Observed at
PAOR

FAA reports on this event · 1

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

Other investigations on N10987 · 1

Matched to the same aircraft by N-number and date.