# NTSB LAX88LA098: Cessna 150L, N1706Q, Diamond Springs, CA, January 26, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 26, 1988, 13:30 local (21:30 UTC)
- Place: Diamond Springs, CA
- Coordinates: 38.679054, -120.810737 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.6791&lon=-120.8107&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 30, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25944
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88LA098
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25944/pdf
- Page: https://openairdocs.org/ntsb/LAX88LA098

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, descent - normal
  - weather condition - carburetor icing conditions (contributing factor)
  - carburetor heat - not used, pilot in command (cause)
  - weather evaluation - inadequate, pilot in command (contributing factor)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - rough/uneven (contributing factor)
- Nose over, landing - roll

## Analysis

DURING A DUAL INSTRUCTIONAL FLT, APPROACHING THE AIRPORT THE ENGINE EXPERIENCED A TOTAL LOSS OF POWER. THE PLT MADE A FORCED LANDING IN A FIELD WHERE DURING THE LANDING ROLL THE ACFT NOSED OVER. THERE WERE NO MECHANICAL FAILURES OR MALFUNCTIONS REPORTED. THE ACFT HAD BEEN OPERATING IN THE RANGE OF SERIOUS ICING AT GLIDE POWER.

## Aircraft

- Registration: [N1706Q](https://openairdocs.org/deregistered/N1706Q-2013-08-06), registration cancelled 2013-08-06, S/N 15073006, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 150730060
- Airframe hours: 5075
- Engines: CONTINENTAL O-200 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Kingdon Aero Club
- Registered owner: Polinski, Allan
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, January 20, 1988, 4 hours before
- Departed: O20, LODI, CA
- Destination: PVF, PLACERVILLE, CA
- Airport: PVF, Placerville

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 534 total, 28 in this make and model, 534 as pilot in command, 81 in the last 90 days, 14 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 3 knots, gusting 11
- Visibility: 30 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 61 °F, dew point 43 °F
- Altimeter: 30.00 inHg
- Observed at: MHR, 27 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 (OpenAirDocs).

- [Accident 19880126005229A](https://openairdocs.org/incident/19880126005229A), Jan 26, 1988: Cessna 150L, Diamond Springs, CA, Substantial damage. Had a loss of engine power. Made a forced landing in a rough field. Nosed over on rollout. Problem undetermined.

## Other investigations on N1706Q (2)

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 LAX98FA219](https://openairdocs.org/ntsb/LAX98FA219), Jul 12, 1998: Cessna 150 (N1706Q), Apple Valley, CA, substantial damage. Probable cause: The improper installation of unvented fuel caps that resulted in fuel starvation and loss of engine power. A factor was the lack of suitable terrain for a forced landing.
- [NTSB FTW73DPA19](https://openairdocs.org/ntsb/FTW73DPA19), Nov 28, 1972: Cessna 150 (N1706Q), Greenville, TX, 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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