LAX98LA067

NTSB accident investigation · Cessna 210 · Compton, CA · January 4, 1998

Accident · Minor injuriesLimited investigationFinal report
Date
January 3, 1998, 16:35 local (Jan 4, 1998, 00:35 UTC)
Place
Compton, CA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9406XCessna 210
Weather
Visual (VMC) · Dusk
Status
Completed · report February 15, 2001
Report
Approved by Office Director
FAA report
19980103000099A
Case key
30017

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 failure of maintenance personnel to adequately inspect the aircraft during an annual inspection to detect a chafed and leaking engine fuel supply line.

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.

Loss of engine power(total) - mech failure/malfApproach
Fluid,fuel - starvationCause
Fuel system,line - chafedCause
Fuel system,line - leakCause
Maintenance,inspection - inadequateOther maintenance personnelCause
Maintenance,annual inspection - inadequateOther maintenance personnelCause
Forced landingEmergency descent/landing
Terrain condition - residential area
In flight collision with objectEmergency descent/landing
Object - utility pole
Object - wire,transmission
On ground/water collision with objectEmergency landing
Object - wall/barricade

Analysis

Following loss of engine power, an emergency off-airport landing was made on a city street. Examination of the aircraft revealed an abraded solid aluminum fuel line between the fuel selector valve and the engine. When the fuel selector valve was turned on, a knife-shaped stream of fuel emanated from the line. When viewed with an inspection mirror, the abraded area appeared V-shaped (grooved) and there was a hole approximately 1/16-inch diameter though the wall of the tube at the deepest part of the groove. Dried, crusty fuel stains were present on the fuel line over a distance of approximately 2 inches. Adjacent to the area of the leak there was a BNC-type antenna connector on an unused marker beacon antenna mounted on the lower fuselage. An annual and pre-buy inspection was performed on the aircraft 2.6 months prior to the accident. The hangar proprietor reported that the aircraft had leaked fuel onto the hangar floor since some time before the inspection, and the aircraft's previous owner had turned off the fuel selector to stop the leaking. The aircraft had flown approximately 10 hours since the inspection.

Factual narrative

On January 3, 1998, at 1635 hours Pacific standard time, a Cessna 210, N9406X, was substantially damaged when it collided with a telephone pole and two cars during an off-airport, emergency landing at Compton, California. The private pilot and one passenger received minor injuries. Visual meteorological conditions prevailed for the personal flight which originated at Long Beach at 1627.

The pilot reported that the engine started "popping" and lost power while at 1,500 feet agl on approach to the Compton airport. He did not have sufficient engine power to reach the runway and landed on the city street about 2 miles east of the airport.

Examination of the aircraft by the Safety Board revealed an abraded solid aluminum fuel line between the fuel selector valve and the engine. When the fuel selector valve was turned on, a knife-shaped stream of fuel emanated from the line. When viewed with an inspection mirror, the abraded area appeared V-shaped (grooved) and there was a hole approximately 1/16-inch diameter though the wall of the tube at the deepest part of the groove. Dried, crusty fuel stains were present on the fuel line over a distance of approximately 2 inches. The line was under the floor of the cabin, forward of the right front passenger seat, and aft of the firewall. Adjacent to the area of the leak there was a BNC-type antenna connector on an unused marker beacon antenna mounted on the lower fuselage.

The pilot involved in the accident had recently purchased the aircraft. An annual and pre-buy inspection was performed on the aircraft 2.6 months prior to the accident. According to the hangar proprietor, the aircraft had leaked fuel onto the hangar floor since some time before the inspection. The previous owner of the aircraft turned the fuel off at the fuel selector valve to stop the leak.

Aircraft

Registration
N9406X
Reported as
Cessna 210
Category
Airplane
Serial number
21057706
Airframe hours
2,359
Engine
Continental IO-470-E, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Edward G. Martell
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 15, 1997 · 14 hours before
Departed
LGB · Long Beach, CA
Destination
CPM
Airport
CPM · Compton, runway 25L, 3,670 × 60 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
50
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
157 total · 10 in this make and model · 74 as pilot in command · 27 in the last 90 days · 18 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
180° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
LGB, 6 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.