ATL89LA068

NTSB accident investigation · Beech B-90 · Paducah, KY · January 8, 1989

Accident · Serious injuriesLimited investigationFinal report
Date
January 7, 1989, 19:35 local (Jan 8, 1989, 01:35 UTC)
Place
Paducah, KY
Injuries
1 serious, 2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N784KBeech B-90
Weather
Visual (VMC) · Night/dark
Status
Completed · report April 19, 1990
Report
Approved by Office Director
FAA report
19890107000309A
Case key
7975

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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Probable cause

Pilot failed to maintain proper altitude while maneuvering to land. Probable contributing factors were inoperative weather radar, thunderstorms, lightning, an undetermined electrical problem, dark night, the pilot's improperly planned approach and visual perception, and the trees.

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.

In flight encounter with weatherCruise
Flight/nav instruments,weather radar system - inoperativeFactor
Weather condition - thunderstormFactor
Weather condition - lightningFactor
Electrical system - undeterminedFactor
Fuel system,electric boost pump - inoperative
In flight collision with objectApproach
Light condition - dark nightFactor
Planned approach - improperPilot in commandFactor
Visual/aural perceptionPilot in commandFactor
Maneuver - initiated
Object - tree(s)Factor
Proper altitude - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Drg a rtrn flt at ngt to decatur, AL, the plt noted his wx radar was inop. He visually avoided thunderstorms (tstms), which had been forecasted. While avoiding tstms, he noted a reduction in eng power, a slight yaw, indcns of fuel flow irregularity & that the left & rgt boost pumps were inop. These occurred at about the time, he saw a white arc which he said had jumped from the prop, spinner or nacelle area to the acft's nose. Due to the wx, he elected to divert to Paducah. After the arpt was in sight, he needed to lose alt before landing & was cleared to make a 360 deg turn. While turning, he lost sight of the arpt, then rolled out on the wrong heading & started flying toward a strobe light at an industrial complex. When he realized his error & saw the arpt, he turned toward the rwy; but as he was maneuvering, the acft lost alt, hit trees & crashed. An exam of the engs & fuel pumps revealed no indcn of a preimpact failure. No physical evidence of a lightning strike was found, but the nose & engs were badly damaged from impact.

Aircraft

Registration
N784K
Reported as
Beech B-90
Category
Airplane
Serial number
LJ-427
Airframe hours
5,293
Engine
P&W PT6A-20, 550 horsepower, turbo prop
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Merrill L. Walker
Registered owner
Eng. & Manufacturing Service
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · July 2, 1987 · 114 hours before
Departed
SDA · Shenandoah, IA
Destination
DCU · Decatur, AL
Flight plan
IFR
Airport
PAH · Barkley Regional, runway 22, 6,500 × 150 ft

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
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,061 total · 115 in this make and model · 1,009 as pilot in command · 13 in the last 90 days · 10 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night/dark
Wind
220° at 22 knots, gusting 29
Visibility
8 statute miles
Lowest ceiling
7,000 ft broken
Temperature
64 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
PAH, 1 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.