# NTSB LAX83LA077: Cessna R172K, N9927V, San Martin, CA, January 14, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 14, 1983, 13:30 local (21:30 UTC)
- Place: San Martin, CA
- Coordinates: 37.099052, -121.600028 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.0991&lon=-121.6000&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23602
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA077
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23602/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA077

## Sequence of events

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

- Loss of control - in flight, approach - vfr pattern - final approach
  - emergency procedure - simulated, pilot in command(cfi) (contributing factor)
  - distance - misjudged, dual student (contributing factor)
  - altitude - misjudged, dual student (contributing factor)
  - in-flight planning/decision - improper, pilot in command(cfi) (cause)
  - airspeed - misjudged, pilot in command(cfi) (cause)
  - stall/mush - inadvertent, pilot in command(cfi) (cause)
- In flight collision with terrain/water, approach - vfr pattern - final approach
  - terrain condition - rising (contributing factor)

## Analysis

THE ACFT MADE A HARD LANDING SHORT OF THE RUNWAY WHILE PRACTICING AN APPROACH WITH A SIMULATED ENGINE FAILURE. ON TURNING FINAL, THE INSTRUCTOR DECIDED THE ACFT WAS TOO LOW TO MAKE THE RUNWAY. SHE ESTIMATED THEY WOULD BE SEVERAL HUNDRED FEET SHORT. SHE TOOK CONTROL TO GAIN AIRSPEED AND DEMONSTRATE FLT IN GROUND EFFECT. IN SPITE OF FULL UP ELEVATOR AND LATE APPLICATION OF POWER, THE ACFT CONTINUED TO SINK AND MADE GROUND CONTACT SHORT OF THE RUNWAY. THE NOSEGEAR WAS DAMAGED AND THE FIREWAY WAS BUCKLED DURING THE LANDING; HOWEVER, THE INSTRUCTOR WAS ABLE TO TAXI THE AIRCRAFT TO THE PARKING AREA. IMPACT OCCURRED ON A SLIGHT RISE IN THE TERRAIN.

## Aircraft

- Registration: [N9927V](https://openairdocs.org/aircraft/N9927V), registered now, S/N R1722354, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (registry code 2072431) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: R1722354
- Airframe hours: 1252
- Engines: CONTINENTAL IO-360K 195 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Aero Trends, Inc.
- Registered owner: Managed Properties, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, November 3, 1982, 36 hours before
- Departed: RHV, SAN JOSE, CA
- Airport: Q99, South County, runway 32, 3,100 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 775 total, 75 in this make and model, 742 as pilot in command, 114 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 61 °F
- Altimeter: 30.00 inHg

## 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 19830114001179A](https://openairdocs.org/incident/19830114001179A), Jan 14, 1983: Cessna R172K, San Martin, CA, Substantial damage. Landed short of runway on rough ground during a practice power off landing. Instructor failed to correct maneuver.

## Other investigations on N9927V (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 LAX81DXQ27](https://openairdocs.org/ntsb/LAX81DXQ27), Jul 20, 1981: Cessna R172K (N9927V), So Lake Tahoe, 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.

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