# NTSB LAX00LA335: Cessna 172L, N84828, Novato, CA, September 11, 2000

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: September 11, 2000, 12:30 local (19:30 UTC)
- Place: Novato, CA
- Coordinates: 38.130992, -122.559562 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.1310&lon=-122.5596&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report November 1, 2001
- Report: Approved by Office Director
- NTSB case key (mKey): 50245
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX00LA335
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/50245/pdf
- Page: https://openairdocs.org/ntsb/LAX00LA335

## Probable cause

Failure of the student pilot to maintain directional control of the airplane during the landing rollout resulting in a collision with a berm.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - ditch
  - terrain condition - berm (cause)

## Analysis

On the landing roll the airplane departed the runway to the left, crossing a taxiway and ditch before colliding with the far side portion of the ditch and coming to rest inverted.  The student pilot had been practicing touch-and-go takeoffs and landings for about 2 hours.  This was the last landing of the day.  On the landing rollout the airplane started to drift to the left.  He verified that he was not engaging the left brake.  Simultaneously the airplane turned 360 degrees and scared him so that he didn't attempt to apply the brakes.  He added power to abort the landing and the airplane crossed the ditch and struck the berm.

## Factual narrative

On September 11, 2000, at 1230 hours Pacific daylight time, a Cessna 172L, N84828, veered off runway 31, stuck a berm, and nosed over after landing at Gnoss Field, Novato, California.  The airplane, operated by Air Ward, Inc., under the provisions of 14 CFR Part 91, sustained substantial damage. The student pilot, on an unsupervised solo flight, received minor injuries.  Visual meteorological conditions prevailed for the instructional flight and no flight plan had been filed.  The local area flight departed from the accident airport about 1215.

In the student pilot's written statement to the Safety Board, he stated that he was practicing touch-and-go takeoffs and landings, and had started flying about 1030 the morning of the accident.  This was the last landing of the day after flying for about 2 hours.  On the landing rollout the airplane started to drift to the left.  The pilot made sure that he was not dragging the left brake by shaking his feet.  The airplane rotated 360 degrees around its vertical axis and scared him so that he did not apply the brakes.  At this point the airplane was rolling on the grass in-between the runway and taxiway.  He added power to abort the landing but the airplane struck something and became inverted.

According to a Federal Aviation Administration (FAA) inspector, who conducted an on-scene investigation, the airplane traveled across the grass, across a parallel taxiway, and across a drainage ditch.  He observed that the far side of the ditch had a raised levee along its bank.  After crossing the ditch the airplane struck the levee with the propeller, nose, and nose landing gear.

The FAA inspector observed tire marks about midfield on the runway.  The right main and nose landing gear made a left-curving track.  Between the runway and parallel taxiway he observed the first contact of the left main landing gear.  At that point there was no further curvature of the tire marks, which continued straight into the ditch.

ADDITIONAL INFORMATION

The FAA inspector reported that the student pilot's flight instructor had not endorsed him for solo flight in a Cessna 172.

## Aircraft

- Registration: [N84828](https://openairdocs.org/deregistered/N84828-2003-02-11), registration cancelled 2003-02-11, S/N 17258632, built 1969 (OpenAirDocs)
- Reported make and model: Cessna 172L
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17258632
- Airframe hours: 8587
- Engines: Lycoming O-320-E2D 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Airward, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, September 3, 2000, 18 hours before
- Departed: DVO
- Airport: DVO, Gnoss Field, runway 31, 3,300 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; student; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 53 total, 11 in this make and model, 11 as pilot in command, 53 in the last 90 days, 53 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 3 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 163 °F, dew point 129 °F
- Altimeter: 29.00 inHg
- Observed at: DVO

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20000911017249A](https://openairdocs.org/incident/20000911017249A), Sep 11, 2000: Cessna 172K, Novato, CA, No damage. (-23) Mr. Gething was on a solo flight practicing touch and go and full stop landings. He was making his final full stop landing on runway 31. The flaps were…

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
