WPR10LA349

NTSB accident investigation · Cessna 310K · El Monte, CA · July 14, 2010

Accident · No injuriesLimited investigationFinal report
Date
July 14, 2010, 08:55 local (15:55 UTC)
Place
El Monte, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N6909LCessna 310K
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 18, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20100714042279A
Case key
76630

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 directional control during the takeoff ground roll.

Findings · 2

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 310K: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna 310K: 2 casesAll aircraft: 9,295 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 reported that he was conducting takeoffs and landings during a post-annual-inspection maintenance test flight. After touchdown, he had retracted the flaps and increased power when the airplane pulled to the right. The pilot applied full left rudder and reduced power to idle; however, the airplane continued to the right and exited the runway onto the soft ground. Subsequently, the right main landing gear collapsed and the airplane slid to a stop. Examination of the airplane revealed no abnormalities with the engine or flight control systems that would have precluded normal operations.

Factual narrative

On July 14, 2010, about 0855 Pacific daylight time (PDT), a Cessna 310K, N6909L, exited the side of the runway during an aborted takeoff at El Monte Airport (EMT), El Monte, California. Lightning Aircraft Corporation was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot, the sole occupant, was uninjured. The airplane sustained substantial damage to both wings and the right horizontal stabilizer. The local personal flight departed El Monte about 0845. Visual meteorological conditions prevailed, and no flight plan had been filed. According to the pilot, he was conducting touch-and-go landings during a post annual maintenance flight. The pilot reported that after touchdown, he retracted the flaps and increased power when the airplane pulled to the right. The pilot applied full left rudder and reduced power to idle; the airplane continued to the right and exited the runway onto the soft ground. Subsequently, the right main landing gear collapsed and the airplane slid to a stop. A review of Federal Aviation Administration (FAA) records revealed that the pilot holds a private pilot certificate in single-engine land aircraft. The pilot’s flight logbook indicated a multi-engine endorsement for solo flight, which was issued on December 24, 1984. The pilot reported to the FAA inspector-in-charge (IIC) that he had 2,500 total hours of flight time, and about 1,200 hours in the airplane make and model involved in the accident. In the past year, the pilot flew 4 hours in the Cessna 310. An inspection of the airplane by FAA maintenance inspectors noted no engine or flight control system abnormalities.

Aircraft

Registration
N6909L
Reported as
Cessna 310K
Category
Airplane
Serial number
310K0009
Engines
Cont Motor I0-470 SERIES, 260 horsepower, reciprocatingCont Motor IO-470 SERIES, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Lightning Aircraft Corp
Registered owner
Lightning Aircraft Corp
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 11, 2010
Departed
EMT · El Monte, CA
Destination
EMT · El Monte, CA
Airport
EMT · El Monte Airport, runway 19, 3,995 × 75 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
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
July 29, 2009
Seat
Left
Flight hours
2,500 total · 1,200 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
13 statute miles
Lowest ceiling
None
Altimeter
29.89 inHg
Observed at
EMT

Docket · 4

The files NTSB released with the investigation on May 18, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 658 KB in all.

FAA reports on this event · 1

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