# NTSB LAX92FA135: Cessna 150, N7933E, Williams, AZ, March 4, 1992

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: March 4, 1992, 12:30 local (19:30 UTC)
- Place: Williams, AZ
- Coordinates: 35.370605, -112.259536 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.3706&lon=-112.2595&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report June 30, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27408
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX92FA135
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27408/pdf
- Page: https://openairdocs.org/ntsb/LAX92FA135

## Probable cause

THE PILOT INADEQUATELY EVALUATING THE WEATHER CONDITION, AND THE PILOT'S INFLIGHT DECISION TO CONTINUE FLIGHT INTO ADVERSE WEATHER CONDITIONS. FACTORS IN THIS ACCIDENT WERE THE PILOT'S VISUAL LOOKOUT ABILITY BEING RESTRICTED BY THE PREVAILING WEATHER CONDITIONS OF REDUCED VISIBILITY, FOG AND SNOW.

## Sequence of events

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

- In flight collision with object, cruise
  - weather condition - fog (contributing factor)
  - weather condition - snow (contributing factor)
  - weather condition - low ceiling (contributing factor)
  - in-flight planning/decision - poor, pilot in command (cause)
  - vfr flight into imc - attempted, pilot in command (cause)
  - visual lookout - restricted, pilot in command (contributing factor)
  - object - wire,static
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

ACCORDING TO WITNESSES LOCATED ON THE GROUND, THE ACCIDENT AIRPLANE WAS FLYING IN AN EASTERLY DIRECTION AT ABOUT 100 FEET ABOVE THE GROUND AND WAS FOLLOWING AN INTERSTATE HIGHWAY.  ACCORDING TO THE WITNESSES AND NOTED WIRE STRIKES, THE AIRPLANE STRUCK A STATIC WIRE AT ABOUT 127 FEET ABOVE THE GROUND.  THE AIRPLANE ENTERED AN UNCONTROLLED DESCENT AND IMPACTED THE GROUND ON THE HIGHWAY'S MEDIAN STRIP IN A NEAR VERTICAL, NOSE DOWN ATTITUDE.  THE WEATHER AT THE TIME ACCORDING TO WITNESSES AND A WEATHER REPORTING STATION LOCATED 35 MILES TO THE EAST, WAS PARTIAL OBSCURATION, 400 FEET SCATTERED, 2 MILES VISIBILITY RESTRICTED BY LIGHT SNOW SHOWERS, FOG AND DRIZZLE.  THE TEMPERTURE WAS 35 DEGREES AND THE DEW POINT WAS 34.

## Aircraft

- Registration: [N7933E](https://openairdocs.org/deregistered/N7933E-1992-08-31), registration cancelled 1992-08-31, S/N 17733 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150](https://openairdocs.org/model/cessna-150) (registry code 2071802) (OpenAirDocs)
- Category: Airplane
- Serial number: 17733
- Airframe hours: 4480
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Lee L. Brown
- Registered owner: Lee L. Brown
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 15, 1992, 88 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 62; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 922 total

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 210° at 6 knots, gusting 12
- Visibility: 2 statute miles
- Lowest ceiling: 900 ft overcast
- Temperature: 36 °F, dew point 34 °F
- Altimeter: 29.00 inHg
- Observed at: FLG, 32 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 19920304005039A](https://openairdocs.org/incident/19920304005039A), Mar 4, 1992: Cessna 150, Williams, AZ, Destroyed, 2 fatal. Struck powerline static. Wire lost control. Crashed on I 40 median that pilot was following in low ceiling and snow

## Other investigations on N7933E (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 UNK64X0748](https://openairdocs.org/ntsb/UNK64X0748), Feb 29, 1964: Cessna 150 (N7933E), Mouline, IL, destroyed

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.