NYC05LA033

NTSB accident investigation · Cessna 172N · Mount Gilead, OH · December 30, 2004

Accident · FatalLimited investigationFinal report
Date
December 30, 2004, 10:00 local (15:00 UTC)
Place
Mount Gilead, OH
Injuries
3 fatal
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N737AZCessna 172N
Weather
Instrument (IMC) · Day
Status
Completed · report November 29, 2006
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20041230033839A
Case key
60781

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 failure to maintain control of the airplane following an inadvertent encounter with instrument meteorological conditions. A factor in the accident was the rapidly deteriorating weather.

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 weatherManeuvering
Weather condition - low ceiling
Weather condition - drizzle/mist
Weather condition - otherFactor
Vfr flight into imc - inadvertentPilot in commandCause
Loss of control - in flightManeuvering
Aircraft control - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

Prior to the accident flight the weather was conducive for visual flight rules operations, but deteriorated "rapidly" as the pilot taxied to the runway. Once airborne, the airplane entered an overcast cloud layer at approximately 300 feet agl, and then was heard circling back towards the airport. Shortly thereafter, the airplane descended out of the overcast at a high rate of speed, in a nose low attitude, and impacted the ground. The pilot held a private pilot certificate, but no instrument rating. She had flown 27 hours in the accident airplane in the preceding 90 days, but in the previous year, did not log any night or instrument flight experience. Examination of the airplane did not reveal any evidence of preimpact failures or malfunctions.

Factual narrative

On December 30, 2004, about 1000 eastern standard time, a Cessna 172N, N737AZ, was substantially damaged after departure when it impacted terrain during an uncontrolled descent near the Morrow County Airport (4I9), Mount Gilead, Ohio. The certificated private pilot, and the two passengers were fatally injured. Instrument meteorological conditions prevailed, and no flight plan was filed for the personal local flight conducted under 14 CFR Part 91.

According to several witnesses, the weather was initially conducive for operating under visual flight rules, but deteriorated "rapidly" as the pilot taxied to the runway. Once airborne, the airplane entered an overcast cloud layer at approximately 300 feet agl, and then was heard circling back towards the airport. The airplane then descended out of the overcast at a high rate of speed, in a nose low attitude, and impacted the ground.

According to Federal Aviation Administration (FAA) records, the pilot held a private pilot certificate with a rating for airplane single-engine-land, and did not hold an instrument rating. Her most recent FAA third-class medical certificate was issued on June 4, 2002. At that time she reported 600 total hours of flight experience.

According to the pilot's most recent log book, she had accumulated 27 hours in the preceding 90 days, and 13 hours in the preceding 30 days, all of which were in the accident airplane. The first entry in the log book was dated October 8, 2003, and from that entry until the most recent, dated December 18, 2004, she did not log any night or instrument flight experience, nor did she log any simulated instrument experience. Since receiving her private pilot certificate in June 1989, she logged approximately 1,005 hours as pilot-in-command.

According to an NTSB Form 6120.1/2 submitted by the operator, the pilot completed a flight review in March 2003. The airplane had accumulated 23 hours since the most recent annual inspection, which was completed on November 18, 2004.

A weather observation taken about 15 minutes after the accident, 11 nm northwest, recorded the weather as winds 170 degrees at 7 knots, visibility 2 miles in mist, ceiling 300 feet overcast, temperature 37 degrees Fahrenheit, dew point 36 degrees Fahrenheit, and an altimeter setting of 30.29 inches of mercury.

According to the FAA inspector, all the major components of the airplane were present at the accident site, and all displayed varying degrees of impact damage. Examination of the wreckage revealed the fuel selector was set to "BOTH," and the carburetor bowl contained fuel. Compression was obtained on all four cylinders, and both magnetos produced spark when their respective input drives were rotated. Flight control continuity was confirmed to all primary flight control surfaces, and the flaps were "UP." In addition, examination of the vacuum system and flight instruments did not reveal evidence of any preimpact failures or malfunctions.

An autopsy was performed on the pilot at the Franklin County Corner's Office in Columbus, Ohio, on December 31, 2004.

The FAA Toxicology and Accident Research Laboratory in Oklahoma City, Oklahoma, performed a toxicological test on the pilot on February 15, 2005.

Aircraft

Registration
N737AZ
Reported as
Cessna 172N
Category
Airplane
Serial number
17269280
Airframe hours
8,208
Engine
Lycoming O-320, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 1, 2004 · 23 hours before
Departed
4I9 · Cardington, OH
Destination
4I9
Airport
4I9 · Morrow County, runway 28, 3,497 × 65 ft, asphalt

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
Fatal
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Left
Toxicology
Performed
Flight hours
1,060 total · 1,005 as pilot in command · 27 in the last 90 days · 13 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
170° at 7 knots
Visibility
2 statute miles
Lowest ceiling
300 ft overcast
Temperature
37 °F, dew point 36 °F
Altimeter
30.29 inHg
Observed at
MNN, 11 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.