IAD02LA013

NTSB accident investigation · Cessna 172S · Leesburg, VA · November 15, 2001

Accident · Serious injuriesLimited investigationFinal report
Date
November 15, 2001
Place
Leesburg, VA
Injuries
1 serious
Damage
Destroyed
Phase of flight
Standing
Aircraft
N346MECessna 172S
Weather
Visual (VMC) · Day
Status
Completed · report August 26, 2003
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20011115031869A
Case key
53780

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 improper stowage of hazardous material.

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.

Fire/explosionStanding - engine(s) not operating
Security of cargo - improperPilot in commandCause
Cargo/baggage - fuel
Hazardous material - leak

Analysis

The airplane was loaded with fishing and camping gear, and 15 gallons of 100LL aviation gasoline, in four, five-gallon fuel cans. The fuel cans and the gear were secured under a cargo net in the airplane 2 days prior to the accident. The pilot completed his preflight inspection with no anomalies noted, and checked the security of the cargo in the back of the airplane. There was no evidence of fuel spillage and no odor of fuel in the cabin. The pilot started the engine and taxied to the run-up area at the approach end of a runway, then applied the parking brake, and started the takeoff checklist. During the checklist, there was an "overwhelming fuel smell." The pilot shut down the engine with the mixture but left the master switch and the lights on. He looked for fuel on the floor of the cabin, but I couldn't see any. The pilot deplaned, and was about to close the door when the cabin exploded.

Factual narrative

On November 15, 2001, at 1816 eastern standard time, a Cessna 172S, N346ME, was destroyed by an explosion and fire on the taxiway at Leesburg Executive Airport (JYO), Leesburg, Virginia. The certificated commercial pilot/owner was seriously injured. Visual meteorological conditions prevailed and an instrument flight rules flight plan had been filed for a flight to Montgomery County Airpark (GAI), Gaithersburg, Maryland. The personal flight was to be conducted under 14 CFR Part 91.

According to the pilot, the purpose of the flight was to fly to a nearby airport, pick up a passenger, and return to Leesburg. He had not planned to fly that night, but was doing a favor for a friend.

The airplane had been loaded for a fishing trip planned for the following day. The pilot had planned to fly to Ocracoke Island Airport (W95) on the Outer Banks of North Carolina, do some fishing, and return the same day.

The airplane was loaded with fishing gear, camping gear, and a 15-gallon auxiliary supply of 100LL aviation gasoline. The aviation gasoline was distributed between four, five-gallon fuel cans. The fuel cans and the gear were secured under a cargo net in the airplane 2 days prior to the accident.

The pilot completed his preflight inspection with no anomalies noted. He visually confirmed the fuel quantity in both wing tanks, and checked the security of the cargo in the back of the airplane. There was no evidence of fuel spillage and no odor of fuel in the cabin of the airplane.

The pilot started the engine and taxied to the run-up area at the approach end of runway 35. He applied the parking brake, and started the takeoff checklist. He didn't recall how far he got in the checklist before there was an "overwhelming fuel smell...It was not there one second and then there was a strong odor of fuel."

The pilot shut down the engine with the mixture but left the master switch and the lights on. He looked for fuel on the floor of the cabin, but I couldn't see anything.

The pilot unbuckled his seat belt, opened the door, and stepped out of the aircraft. He never closed the door, but was facing the airplane and putting his hand on the door when the cabin exploded. A ball of flame came out of the door and blew him backwards, onto his back. All he could see was the entire cockpit engulfed in flames. He then took his cell phone out of his pocket and called 911.

In a written statement, the pilot also noted that the "ignition appeared to come from the cockpit area."

The pilot was asked if the fixed base operator at Leesburg Airport had serviced the fuel cans in the airplane. He said no. The pilot explained that he siphoned the fuel from his airplane, which was full, into the fuel cans. He then had the airplane's fuel tanks filled to the top. An examination of fuel records revealed that the airplane was serviced with 22.7 gallons of fuel the day before the accident.

Examination of the wreckage revealed that the cockpit, cabin area, empennage, and the right wing were consumed by fire. The engine and accessories forward of the firewall were undamaged.

The airplane was purchased new by the pilot in September 2000, and had accrued 350 hours since that date. The most recent annual inspection was completed on October 16, 2001, and the airplane had accrued 10 hours of flight time since that date.

During the interview, the pilot was asked why he carried auxiliary fuel in non-crashworthy fuel cans in the passenger compartment of the airplane. He said that after a direct flight from Leesburg to Ocracoke Airport, the airplane had approximately 1 hour of fuel endurance remaining. The pilot said there were no fuel services available at Ocracoke, and that the additional fuel onboard provided an extra hour and some "peace of mind" for the first leg of the return trip.

The pilot said he would normally stop in the Norfolk/Newport News, Virginia area for fuel before returning to Leesburg. During the interview, a survey of several airports within 50 miles of Ocracoke revealed fuel services were available, and that the pilot carried the credit card honored by the fuel vendors. The pilot said he was not aware that fuel services were available at those airports.

The pilot held a private pilot certificate with ratings for airplane single engine land and instrument airplane. He reported 424 hours of flight experience, 400 hours of which were in make and model.

At 1842, the weather at Leesburg was clear skies, calm winds, and 10 miles of visibility. The temperature was 59 degrees and the dewpoint was 39 degrees.

Aircraft

Registration
N346ME
Reported as
Cessna 172S
Category
Airplane
Airframe hours
350
Engine
Lycoming IO-360-L2A, 180 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Registered owner
Edward J. Diaz
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 16, 2001 · 10 hours before
Departed
JYO · Manassas, VA
Destination
GAI · Gaithersburg
Flight plan
IFR
Airport
JYO · Leesburg Executive

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
30
Injuries
Serious
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
August 1, 2001
Seat
Left
Flight hours
424 total · 400 in this make and model · 424 as pilot in command · 50 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 39 °F
Altimeter
30.12 inHg
Observed at
KJYO

FAA reports on this event · 1

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