ANC02LA033

NTSB accident investigation · Bellanca 7GCBC · Yakutat, AK · May 13, 2002

Accident · No injuriesLimited investigationFinal report
Date
May 13, 2002, 10:30 local (18:30 UTC)
Place
Yakutat, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3JKBellanca 7GCBC
Weather
Visual (VMC) · Day
Status
Completed · report January 16, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA, Anchorage FSDO
FAA report
20020513028899A
Case key
54793

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 NTSB’s determination of the probable cause, and any contributing factors.

The collapse of the left main landing gear during the landing roll due to a fractured main gear leg strut.

Analysis

The pilot/airplane owner was landing his tailwheel airplane equipped with over-sized tires on a turf runway. During the landing roll, the left main landing gear collapsed, and the left wing struck the ground. An aviation mechanic who repaired the airplane said the main landing gear leg strut had fractured at what he believed was a pre-existing crack. The pilot stated in a telephone interview with the NTSB investigator that he was unaware of any preaccident mechanical problems with the airplane.

Factual narrative

On May 13, 2002, about 1030 Alaska daylight time, a tundra tire-equipped Bellanca 7GCBC airplane, N3JK, sustained substantial damage when the left main landing gear collapsed while landing at the Tanis Mesa airstrip, located about 42 miles southeast of Yakutat, Alaska. The commercial pilot and the one passenger were not injured. The 14 CFR Part 91 business (hunt/guide) flight operated in visual meteorological conditions without a flight plan. The flight departed Yakutat about 1010. The intermediate destination was the Tanis Mesa airstrip, with a return to Yakutat.

The pilot/owner of the airplane contacted the NTSB investigator-in-charge (IIC) by telephone on May 13 at 1240 to report the accident. During the ensuing conversation, he said he was an owner of a guide business, and was landing his tailwheel airplane at the Tanis Mesa turf airstrip for a routine check on a hunting guide and clients. He said that soon after a normal touchdown, the left main landing gear collapsed, and the left wing struck the ground, damaging the outboard two feet of the wing and the left wing lift strut. The pilot said he was unaware of any pre-existing mechanical problems with the airplane, and that the airplane was equipped with 24-inch tundra tires.

Postaccident discussion between the NTSB IIC and an aviation mechanic who repaired the airplane, disclosed that the mechanic discovered what he believed to be a pre-existing crack in the left main landing gear strut at the point the gear leg fractured.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Main gear collapsedLanding - roll
Landing gear,main gear strut - fracturedCause

Aircraft

Registration
N3JK
Reported as
Bellanca 7GCBC
Category
Airplane
Serial number
941-76
Airframe hours
2,744
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Jim Keeline
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 1, 2002 · 27 hours before
Departed
YAK · Yakutat, AK
Destination
Yakutat, AK
Airport
AK69 · Tanis Mesa, runway 30, 1,900 × 15 ft, grass/turf

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
63
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
June 2, 2001
Seat
Front
Flight hours
10,500 total · 6,000 in this make and model · 10,400 as pilot in command · 40 in the last 90 days · 40 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Lowest ceiling
None
Temperature
45 °F

Docket · 1

The files NTSB released with the investigation on November 11, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 437 KB 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.

Other investigations on N3JK · 1

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