DEN82DA160

NTSB accident investigation · Cessna 421C · Bountiful, UT · August 10, 1982

Accident · No injuriesFinal report
Date
August 9, 1982, 19:00 local (Aug 10, 1982, 01:00 UTC)
Place
Bountiful, UT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N6771CCessna 421C
Weather
Visual (VMC) · Day
Status
Completed · report August 9, 1983
Report
Approved by Office Director
FAA report
19820810035399A
Case key
70013

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

On this page

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.

Airframe/component/system failure/malfunctionLanding - flare/touchdown
Landing gear,normal brake system - looseCause
Landing gear,normal brake system - lockedCause
Loss of control - on ground/waterLanding - roll
Directional control - not possiblePilot in command
Ground loop/swerve - uncontrolledPilot in command
Main gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

The pilot reported that the approach and landing to touchdown were normal. At touchdown, the aircraft shuttered and pulled to the right, but was kept on the runway through the use of left brake and nosewheel steering. After continuing down the runway for about 1500 ft, the aircraft slowed to approximately 10 mph, then yawed violently to the right and skidded with the left wing forward. The left main gear collapsed as the aircraft came to a halt. When examined, the right wheel would rotate slower than the left when both were rotated together, but neither locked up. While the right wheel was being turned, a brake puck fell out of the brake assembly. A disassembly of the brake revealed a second puck was also loose. After reassembly, the right brake operated normally.

Aircraft

Registration
N6771C
Reported as
Cessna 421C
Category
Airplane
Serial number
421C0455
Airframe hours
417
Engine
Continental GTSIO-520-L, 375 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
Hoskings Exploration Helicopte
Registered owner
Hoskings Exploration Helicopte
Departed
6V6 · Nucla, CO
Destination
Houston, TX
Flight plan
VFR
Airport
BTF · Salt Lake Skypark, runway 34, 4,700 × 70 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
2,373 total · 467 in this make and model · 2,063 as pilot in command · 68 in the last 90 days · 66 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 10 knots
Visibility
40 statute miles
Temperature
194 °F
Altimeter
30.00 inHg
Observed at
SLC, 5 nm away

FAA reports on this event · 1

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