FTW93FA061

NTSB accident investigation · Beech C24R · Tulsa, OK · December 29, 1992

Accident · FatalField investigationFinal report
Date
December 28, 1992, 20:30 local (Dec 29, 1992, 02:30 UTC)
Place
Tulsa, OK
Injuries
3 fatal
Damage
Destroyed
Phase of flight
Approach
Aircraft
N3809QBeech C24R
Weather
Instrument (IMC) · Night/dark
Status
Completed · report September 28, 1993
Report
Approved by Office Director
FAA report
19921228051909A
Case key
18584

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

The pilot's disregard of and descent below the published decision height. Factors were his failure to maintain proper glide path and localizer alignment.

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 collision with objectApproach - faf/outer marker to threshold (ifr)
Object - tree(s)
Decision height - disregardedPilot in commandCause
Proper glidepath - not maintainedPilot in commandFactor
Proper alignment - not maintainedPilot in commandFactor
Light condition - dark night
Weather condition - low ceiling
Weather condition - fog
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot was executing an ILS approach in dark night IMC, when the airplane impacted trees at the 50 foot AGL level, about 150 feet below the decision height. The airplane subsequently impacted the ground and burned. The trees were about 1/2 mile short of and 1/2 mile left of the extended centerline of the landing runway which was not equipped with an approach lighting system. A parallel runway, which extended out 1,000 feet beyond the landing runway was equipped with an ILS and medium intensity approach lighting system, sequenced flashing lights and runway centerline lights. The airplane impacted the trees about midway between the two runways, on a heading toward the second runway.

Aircraft

Registration
N3809Q
Reported as
Beech C24R
Category
Airplane
Serial number
MC-748
Airframe hours
1,900
Engine
Lycoming IO-360-A1B6, 180 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Robertson, James R., doing business as Robertson Aviation
Registered owner
Robertson, James R.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · November 4, 1992 · 30 hours before
Departed
SGF · Springfield, MO
Flight plan
IFR
Airport
TUL · Tulsa Intl., runway 18, 6,101 × 150 ft, concrete

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
26
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
391 total · 41 in this make and model · 339 as pilot in command · 30 in the last 90 days · 13 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Night/dark
Wind
160° at 11 knots
Visibility
1 statute miles
Lowest ceiling
200 ft overcast
Temperature
50 °F, dew point 50 °F
Altimeter
30.00 inHg
Observed at
TUL, 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.