# NTSB DEN84LA299: Cessna T207A, N75870, Mexican Hat, UT, September 25, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 25, 1984, 12:30 local (18:30 UTC)
- Place: Mexican Hat, UT
- Coordinates: 37.179733, -109.880775 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.1797&lon=-109.8808&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16490
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA299
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16490/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA299

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, approach - vfr pattern - final approach
  - fluid,fuel - starvation (cause)
  - mixture - improper use of, pilot in command (cause)
  - fuel boost pump selector position - improper, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - dirt bank/rising embankment

## Analysis

PLT STATED AFTER ACCIDENT THAT WHILE ON FINAL APPROACH WITH ENG PWR REDUCED FOR LANDING, THE ACFT BEGAN TO DESCEND BELOW THE DESIRED GLIDEPATH. WHEN THE THROTTLE WAS ADVANCED THERE WAS NO ADDED THRUST. AN IN-FLIGHT RESTART WAS UNSUCCESFUL. THE ACFT LANDED SHORT OF THE RUNWAY AN COLLIDED WITH A DIRT EMBANKMENT. POST CRASH FUNCTIONAL TEST OF THE ENG REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION OR FAILURE THAT WOULD PRECLUDE NORMAL ENG OPERATION. THE ENG DID FAIL WHEN THE MIXTURE CONTROL WAS SET FOR SMOOTH ENG OPERATION, THE BOOST PUMP WAS IN THE OFF POSITION AND THE THROTTLE RAPIDLY ADVANCED FROM A LOW PWR SETTING TO FULL PWR.

## Aircraft

- Registration: [N75870](https://openairdocs.org/aircraft/N75870), registered now, S/N 20700648, built 1980 (OpenAirDocs)
- Reported make and model: CESSNA T207A
- Registry model: [Cessna T207A](https://openairdocs.org/model/cessna-t207a) (registry code 2073615) (OpenAirDocs)
- Registry engine: [Continental TSIO-520-M](https://openairdocs.org/engine/continental-tsio-520-m) (registry code 17266, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20700648
- Airframe hours: 1711
- Engines: CONTINENTAL TSIO-250-M 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 135
- Registered owner: Air Nevada Leasing I, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 15, 1984, 29 hours before
- Departed: LAS, LAS VEGAS, NV
- Flight plan: VFR
- Airport: 73V, Oljato

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: left; flight hours: 1,525 total, 12 in this make and model, 1,468 as pilot in command, 253 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 5 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 61 °F, dew point 18 °F
- Altimeter: 30.00 inHg
- Observed at: PGA

## 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 19840925051269A](https://openairdocs.org/incident/19840925051269A), Sep 25, 1984: Cessna T207A, Mexican Hat, UT, Substantial damage. Applied full throttle after descending too low on final. No power noted although gauges in green. Struck embankment

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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