DEN08LA096

NTSB accident investigation · Commonwealth 185 · Roanoke, TX · May 24, 2008

Accident · Minor injuriesLimited investigationFinal report
Date
May 24, 2008, 16:30 local (21:30 UTC)
Place
Roanoke, TX
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N33384Commonwealth 185
Defining event
Landing-landing roll: Collision with terr/obj (non-CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 2008
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20080524837589A
Case key
68137

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 physiologic impairment and failure to attain the proper touchdown point during an intentional off airport landing. Contributing to the accident was the pilot's improper in-flight planning.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Runway/land/takeoff/taxi surfaceEnvironmental issues › Physical environment · Not specifiedCommonwealth 185: 1 caseAll aircraft: 253 cases
Health/Fitness: dietPersonnel issues › Physical · PilotCommonwealth 185: 1 caseAll aircraft: 1 caseProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedCommonwealth 185: 1 caseAll aircraft: 809 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot, a diabetic on insulin, was in cruise flight when he felt ill due to low blood sugar. Though he was only two miles from his destination airport, he elected to land in a field. During the approach he was too high, and "could not get down in time." During the landing, he struck an embankment resulting in substantial damage to the airplane. An examination of the airplane systems revealed no anomalies. The pilot had not attempted to obtain a medical certificate after being diagnosed with diabetes in 2000, and had not accomplished a flight review since 2001. Low blood sugar (hypoglycemia), which is most commonly seen in diabetics on insulin, can lead to behavioral changes, confusion, fatigue, seizures, and loss of consciousness.

Factual narrative

On May 24, 2008, approximately 1630 central daylight time, a Commonwealth 185, N33384, owned and operated by the pilot, was substantially damaged during a precautionary landing near Roanoke, Texas. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without a flight plan. The pilot sustained minor injuries. The cross-country flight departed Rhome, Texas, approximately 1515 and was en route to Northwest Regional Airport (52F), Roanoke, Texas. According to the Federal Aviation Administration (FAA) inspector who traveled to the scene, the pilot was in cruise flight when he started feeling "shaky" and felt his blood sugar was low. According to the Pilot Aircraft Accident Report Form submitted by the pilot, he had started flying around 1400, had stopped in Rhome to visit a friend, and was on his way back to Roanoke. He had the airport in sight when he "started feeling sick." The pilot indicated that he performed a precautionary landing to a field two miles southwest of the airport. During the approach he was too high, and "could not get down in time." During the landing, he struck an embankment and the main landing gear and nose gear were damaged. Further examination revealed that the firewall was wrinkled, the gear attach points had separated, and the engine mounts were bent. An examination of the airplane systems, conducted by the FAA, revealed no anomalies. The pilot was treated after the accident and his blood sugar was measured but he did not recall what that reading was. He was given something to eat and felt better. Following the accident, the pilot reported to the FAA and the Safety Board Investigator-in-Charge, that he had type II diabetes. The pilot noted that the condition had been diagnosed in 2000 and was controlled through the use of insulin. He stated that he had occasional problems with low blood sugar. He had been considering ending his time as a pilot but "did not do it soon enough." The pilot reported that his last medical certificate was issued in May of 1999 and his last flight review was conducted in April of 2001. He stated that he did not apply for a medical certificate after 1999 and had never been denied a medical certificate. He was aware that he could have been awarded a medical certificate, despite his medical conditions, with various limitations and operating requirements. He did hold a current driver's license at the time of the accident and believed he was operating under the requirements of a Sport Pilot Certificate. He did acknowledge that his airplane did not meet the requirements for Sport Pilot Operations, as it exceeded the requirement for gross weight. According to Title 14 Code of Federal Regulations Part 61.23 the pilot was required to hold at least a third class airmen medical certificate while "exercising the privileges of a private pilot certificate." According to Part 61.56 thepilot was required to have satisfied the requirements of a flight review within 24 calendar months of his last flight review while acting as pilot in command of an airplane.

Aircraft

Registration
N33384
Reported as
Commonwealth 185
Category
Airplane
Serial number
1605
Airframe hours
4,050
Engine
Continental C85-12E, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2007
Departed
7TSO · Rhome, TX
Destination
52F · Roanoke, TX

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
72
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Last flight review
April 1, 2001
Seat
Left
Flight hours
2,670 total · 2,150 in this make and model · 2,650 as pilot in command · 18 in the last 90 days · 7 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 13 knots, gusting 22
Visibility
7 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 70 °F
Altimeter
29.84 inHg
Observed at
KAFW

FAA reports on this event · 1

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