ATL87FA030

NTSB accident investigation · Piper Aerostar 601P · Clinton, NC · November 26, 1986

Accident · FatalField investigationFinal report
Date
November 26, 1986, 18:23 local (23:23 UTC)
Place
Clinton, NC
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N122FPPiper Aerostar 601P
Weather
Visual (VMC) · Dusk
Status
Completed
Report
Approved by Office Director
FAA report
19861126068019A
Case key
7269

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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Analysis

While en route on an IFR flt plan at FL180, the plt acknowledged instructions to dscnd to 16,000'. Later, the radar controller (cltr) noticed the acft had deviate fm course & was not replying with mode 'c' alt info. The ctlr reqd alt info & the plt responded, '. . . I've lost an (awful) lot of alt, I got mixed up in here & lost alt, I'm goin' back up . . .' When queried, the plt rprtd he was at 9000' & acknowledged instructions to climb to 14,000'. Shortly there- after, the acft entered a spiral, then radio & radar contact were lost. An in-flt break-up occurred & the wreckage fell ovr a widespread area. An exam revealed evidence the wings & rgt horizontal stabilizer had failed fm overload, with the wings separating in an upward drctn. A wx study indcd there were cld layers fm about 14,000' to 20,000' with lgt to mod mixed icing in clds abv 14,000 ft. also, lgt to mod turbc was forecast blo 20,000' & widely scattered, imbedded tstms were forecast in an area north of the acdnt area. Witnesses rprtd clds & ocnl lightning to the east.

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.

Altitude deviation,uncontrolledCruise - normal
Light condition - duskFactor
Weather condition - cloudsFactor
Weather condition - icing conditionsFactor
Weather condition - turbulenceFactor
Proper altitude - not maintainedPilot in commandFactor
Descent - inadvertentPilot in commandFactor
Loss of control - in flightCruise
Aircraft handling - not maintainedPilot in commandCause
Spatial disorientationPilot in commandCause
Spiral - inadvertentPilot in commandCause
Airframe/component/system failure/malfunctionDescent - uncontrolled
Design stress limits of aircraft - exceededPilot in commandCause
Wing - overload
Horizontal stabilizer surface - overload
In flight collision with terrain/waterDescent - uncontrolled

Aircraft

Registration
N122FP
Reported as
Piper Aerostar 601P (AEROSTAR 6)
Category
Airplane
Serial number
61P-0412-147
Engine
Lycoming TIO-540-J2BD, 350 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
William K. Tyus
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 6, 1986
Departed
EWN · New Bern, NC
Destination
TYS · Knoxville, TN
Flight plan
IFR

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
49
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
3,000 total · 175 in this make and model · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
210° at 7 knots
Visibility
7 statute miles
Lowest ceiling
15,000 ft broken
Temperature
73 °F, dew point -0 °F
Altimeter
29.00 inHg
Observed at
FAY, 30 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.