ATL85FA261

NTSB accident investigation · Beech C-99 · Conover, NC · August 28, 1985

Accident · FatalField investigationFinal report
Date
August 28, 1985, 01:45 local (05:45 UTC)
Place
Conover, NC
Injuries
3 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N992SBBeech C-99
Weather
Visual (VMC) · Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19850828041509A
Case key
6636

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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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.

Loss of control - in flightCruise
Emergency procedure - selectedPilot in command(cfi)Cause
Remedial action - not performedDual studentCause
Lack of familiarity with aircraftDual studentCause
Remedial action - delayedPilot in command(cfi)Cause
Fatigue(flight and ground schedule)Pilot in command(cfi)Cause
Supervision - not maintainedPilot in command(cfi)Cause
ComplacencyPilot in command(cfi)Factor
Fatigue(flight and ground schedule)Pilot in command(cfi)Cause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Acft was on trng flt for initial copilot qual for commuter air carrier. Instructor and two trainees were on board. The acft departed charlotte at about 2314EDT for the hickoryarea for trng. At about 0015EDT,it was reported that the crew visited the hickory fss. After departing hickory, the acft climbed to 5500 ft and remained generally between charlotte. At about 0145EDT, radar data showed the acft to be in a steepning descent an gaining speed. The acft collided with tree limbs, a utility pole and the ground in about 35 angle of descent in a residential area of Conover NC. Investigation revealed a nose up trim,which was aprx 75 percent of the available up-trim(3.38 degrees up- nose. This is an abnormal setting;so the entire trim unit was retained & sent to the talley corp for detailed exam. The ram end fittings were sent to ga tech research for surface fracture analysis. The exam showed ductile overstress & no indication of pre-cracked condition. Pitch trim emergencies are a part of sunbirds C-99 training program(fit 1 & 2)

Aircraft

Registration
N992SB
Reported as
Beech C-99
Category
Airplane
Serial number
U-170
Airframe hours
7,651
Engine
P&W PT6A-36, 715 horsepower, turbo prop
Damage
Destroyed
Flight
Instructional · Part 91
Operator
Sunbird Airline,Inc., doing business as Piedmont Commuter
Registered owner
Beech Acceptance Corp., Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · August 21, 1985 · 35 hours before
Departed
HKY · Hickory, NC
Destination
CLT · Charlotte, NC
Airport
HKY · Hickory

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
38
Certificates
Commercial, Flight instructor, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Toxicology
Performed
Flight hours
5,309 total · 950 in this make and model · 45 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
290° at 5 knots
Visibility
6 statute miles
Lowest ceiling
25,000 ft overcast
Temperature
66 °F, dew point 66 °F
Altimeter
30.00 inHg
Observed at
HKY

FAA reports on this event · 1

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