# NTSB LAX90LA217: Cessna 170B, N2672D, Concord, CA, June 10, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 10, 1990, 15:29 local (22:29 UTC)
- Place: Concord, CA
- Coordinates: 37.999923, -122.029609 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.9999&lon=-122.0296&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 10, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 26838
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX90LA217
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/26838/pdf
- Page: https://openairdocs.org/ntsb/LAX90LA217

## Probable cause

THE PILOT FAILED MAINTAIN DIRECTIONAL CONTROL BY HIS FAILURE TO COMPENSATE FOR THE EXISTING WIND CONDITIONS.

## 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
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (contributing factor)
  - ground loop/swerve - inadvertent, pilot in command (contributing factor)
- Main gear collapsed, landing - roll
  - landing gear,main gear strut - overload

## Analysis

THE CERTIFICATED COMMERCIAL PILOT/FLIGHT INSTRUCTOR NOTED THAT A CROSSWIND EXISTED AT THE AIRPORT. THE AIRPLANE TOUCHED DOWN NORMALLY, BUT DURING THE LANDING ROLL-OUT THE PILOT FAILED TO MAINTAIN DIRECTIONAL CONTROL BY FAILING TO PROPERLY COMPENSATE FOR THE EXISTING WIND CONDITIONS. THE LEFT MAIN GEAR COLLAPSED DURING THE SUBSEQUENT GROUND LOOP.

## Aircraft

- Registration: [N2672D](https://openairdocs.org/deregistered/N2672D-1992-10-22), registration cancelled 1992-10-22, S/N 20824 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Category: Airplane
- Serial number: 20824
- Engines: LYCOMING O-360-A1A 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Kirk D. Heineman
- Departed: SQL, SAN CARLOS, CA
- Airport: CCR, Concord, runway 19L, 2,768 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 644 total, 17 in this make and model, 530 as pilot in command, 16 in the last 90 days, 16 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 13 knots, gusting 17
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Altimeter: 29.00 inHg
- Observed at: CCR

## 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 19900610019449A](https://openairdocs.org/incident/19900610019449A), Jun 10, 1990: Cessna 170B, Concord, CA, Substantial damage. Ground looped on the landing roll. Blamed a gusty crosswind.

## Other investigations on N2672D (1)

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.

- [NTSB LAX69D0012](https://openairdocs.org/ntsb/LAX69D0012), May 26, 1968: Cessna 170B (N2672D), Blythe, CA, substantial damage

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.