MIA05CA032

NTSB accident investigation · Cessna 172B · Zephyrhills, FL · November 21, 2004

Accident · Serious injuriesData collectionFinal report
Date
November 21, 2004, 16:30 local (21:30 UTC)
Place
Zephyrhills, FL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Other
Aircraft
N7493XCessna 172B
Weather
Visual (VMC) · Day
Status
Completed · report February 24, 2005
Report
Approved by Office Director
Parties
Tampa, Florida
FAA report
20041121031209A
Case key
60647

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 set the parking brake and his improper starting procedure which resulted in an unattended aircraft running away after hand starting the engine and the airplane colliding with parked airplanes, incurring substantial damage.

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.

On ground/water collision with objectOther
Brakes(normal) - not setPilot in commandCause
Starting procedure - improperPilot in commandCause
Aircraft unattended/engine(s) running
Object - aircraft parked/standing
Object - fence
Loss of control - on ground/waterStanding - engine(s) operating
On ground/water collision with objectOther
Object - aircraft parked/standing

Analysis

The pilot stated that after refueling the airplane embarked and tried to start the airplane, and said that it would not start. He said he turned off the magneto switch, set the brakes, got out the airplane, and tried starting it by hand several times, but it would not start. After a brief distraction he said that when he again moved the propeller, all of a sudden the engine started operating immediately. He said the airplane moved forward and was heading toward the fuel tank, so he ran after it and grabbed the left strut to keep it from hitting the tank. He said the airplane proceeded between the fuel tank and the credit card machine, knocking him to the ground, and continued on, impacted two parked airplanes and two chain linked fences before stopping.

Factual narrative

On November 21, 2004, about 1630 eastern standard time, a Cessna 172B, N7493X, registered to and operated by a private individual as a Title 14 CFR Part 91 personal flight, impacted parked airplanes in Zephyrhills, Florida. Visual meteorological conditions prevailed, and no flight plan was filed. The private-rated pilot received serious injuries, and the airplane incurred substantial damage.

The pilot stated that he had flown his airplane from Lakeland, Florida, to Zephyrhills, Florida, for fuel. After refueling he got in and tried to start the airplane, and said that it would not start. He said he turned off the magneto switch, set the brakes, got out the airplane, and tried starting it by hand several times, but it would not start. About that time a person drove up and asked him for directions, and after providing the person with information he said that when he next pulled the propeller, the engine started operating immediately, and its speed increased. The airplane started moving forward and the pilot said he jumped out of the way. He said it veered to the left and was heading toward the fuel tank, so the pilot said he ran after it and grabbed the left strut to keep it from hitting the tank. The airplane proceeded between the fuel tank and the credit card machine, and in the process the pilot said he was knocked to the ground. As the airplane continued on, the pilot said it impacted two parked airplanes, as well as two chain linked fences. The airplane's entanglement in the second fence caused the engine to cease operating, and as a result, the airplane stopped moving.

Aircraft

Registration
N7493X
Reported as
Cessna 172B
Category
Airplane
Serial number
17247993
Engine
Teledyne Continental O-300-d, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
David D. Knight
Airworthiness certificate
Standard, Normal
Departed
ZPH · Zephyrhills, FL
Destination
LAL · Lakeland, FL

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
61
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
February 11, 2003
Flight hours
643 total · 643 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 9 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 55 °F
Altimeter
30.14 inHg
Observed at
LAL

FAA reports on this event · 1

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