# NTSB DEN93LA072: Cessna 150M, N704QR, Haswell, CO, July 1, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 1, 1993, 10:30 local (16:30 UTC)
- Place: Haswell, CO
- Coordinates: 38.450099, -103.160942 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.4501&lon=-103.1609&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 3, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18297
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN93LA072
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18297/pdf
- Page: https://openairdocs.org/ntsb/DEN93LA072

## Probable cause

FAILURE OF THE STUDENT PILOT TO MAINTAIN CONTROL OF THE AIRCRAFT DURING LANDING ROLL.  FACTORS WERE:  ALTERNATOR FAILURE, FAILURE OF THE STUDENT PILOT TO FOLLOW PROCEDURES AND DIRECTIVES, AND FAILURE OF THE STUDENT PILOT TO PERFORM FUEL CONSUMPTION CALCULATIONS.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - electrical system,alternator - failure,total (contributing factor)
  - procedures/directives - not used, pilot in command (contributing factor)
- Loss of control - on ground/water, landing - roll
  - precautionary landing - attempted, pilot in command
  - engine instruments,fuel quantity gage - false indication
  - fuel consumption calculations - not performed, pilot in command (contributing factor)
  - terrain condition - roadway/highway
  - aircraft control - not maintained, pilot in command (cause)

## Analysis

WHILE ON A STUDENT SOLO CROSS COUNTRY TRAINING FLIGHT, THE ALTERNATOR FAILED AND THE STUDENT FAILED TO RECOGNIZE THE FAILURE.  THE LORAN, WHICH HE WAS USING FOR NAVIGATION, FAILED SO HE SWITCHED TO THE VOR.  THAT ALSO FAILED AND HE THEN NOTICED HIS FUEL GAUGES WERE LOW AND THOUGHT HE WAS RUNNING OUT OF FUEL.  THE STUDENT PILOT ATTEMPTED TO LAND ON A RURAL ROAD AND WENT OFF THE SIDE OF THE ROAD INTO A DITCH. THE FLIGHT DEPARTED WITH FULL FUEL WHICH PROVIDES APPROXIMATELY 4 HOURS AND 30 MINUTES ENDURANCE. THE ACTUAL DURATION OF THE FLIGHT WAS 1 HOUR AND 45 MINUTES.

## Aircraft

- Registration: [N704QR](https://openairdocs.org/deregistered/N704QR-2018-05-31), registration cancelled 2018-05-31, S/N 15078794, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15078794
- Airframe hours: 5228
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Carl Scott And Larry Wagner
- Registered owner: Carl Scott And Larry Wagner
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 4, 1993, 82 hours before
- Departed: FTG, WATKINS, CO
- Destination: LHX, LAMAR, CO
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; student; medical: class 3, valid medical--w/ waivers/lim; flight hours: 41 total, 24 in this make and model, 10 as pilot in command, 32 in the last 90 days, 13 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## 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 19930701021509A](https://openairdocs.org/incident/19930701021509A), Jul 1, 1993: Cessna 150M, Haswell, CO, Substantial damage. Lost radios and apparent low fuel. Landed on a road. Ran into ditch. Alternator had failed unrecognized by student.

## Other investigations on N704QR (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 FTW96LA376](https://openairdocs.org/ntsb/FTW96LA376), Sep 5, 1996: Cessna 150M (N704QR), Boulder, CO, substantial damage. Probable cause: an improper flare by the student pilot, and his improper recovery from a bounced landing. A factor relating to the accident was: the student pilot's lack of experience in the type (model) of aircraft.

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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