# NTSB DEN85LA143: Cessna 340A, N111SC, Englewood, CO, May 25, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 24, 1985, 18:40 local (May 25, 1985, 00:40 UTC)
- Place: Englewood, CO
- Coordinates: 39.579448, -104.860137 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.5794&lon=-104.8601&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16684
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN85LA143
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16684/pdf
- Page: https://openairdocs.org/ntsb/DEN85LA143

## Sequence of events

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

- Forced landing, takeoff - initial climb
  - fuel tank selector position - improper use of, pilot in command(cfi) (cause)
  - improper use of procedure, pilot in command(cfi)
  - improper training, pilot in command(cfi)
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - wheels up landing - performed, pilot in command(cfi)

## Analysis

ON MAY 24, 1985, A CESSNA 340, LANDED GEAR UP OFF THE RUNWAY AT CONTENNIAL ARPT, ENGLEWOOD, CO. THE SINGLE ENG ILS APCH AND 2 ENG MISSED APCH WAS PLANNED. THE INSTRUCTOR SIMULATED THE LOSS OF THE RIGHT ENG AT THE OUTER MARKER BY TURNING OFF THE FUEL SUPPLY. UPON GOING MISSED APCH THE ACFT WOULD NOT CLIMB OR ACCELERATE. A FORCED LANDING WAS MAKE. THE PROPELLERS INDICATED THE LEFT ENG WAS DEVELOPING HIGH POWER AND THE RIGHT ENGG WAS DEVELOPING LITTLE OR NO POWER. EVIDENCE SUGGESTS THE FLIGHT INSTRUCTOR INADVERTENTLY SHUT DOWN THE RIGHT ENG. THERE WERE NO INJURIES.

## Aircraft

- Registration: [N111SC](https://openairdocs.org/deregistered/N111SC-2007-04-10), registration cancelled 2007-04-10, S/N 340A0335, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA 340A
- Registry model: [Cessna 340A](https://openairdocs.org/model/cessna-340a) (registry code 2076405) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: C340A0335
- Airframe hours: 2028
- Engines: CONTINENTAL TSIO-520 310 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Pc Flyers
- Registered owner: Hbp Conell Corporation
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, September 18, 1984, 88 hours before
- Departed: APA, ENGLEWOOD, CO
- Airport: APA, Contennial, runway 34R, 8,500 × 101 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 850 total, 64 in this make and model, 84 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 320° at 5 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 55 °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 19850524020679A](https://openairdocs.org/incident/19850524020679A), May 24, 1985: Cessna 340A, Englewood, CO, Substantial damage. Turned fuel off on simulated approach. Could not maintain altitude. No engine restart, landed gear up.

## Other investigations on N111SC (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 CHI07FA073](https://openairdocs.org/ntsb/CHI07FA073), Feb 17, 2007: Cessna 340A (N111SC), Council Bluffs, IA, destroyed, 4 fatal. Probable cause: The pilot's continued flight into adverse weather, and his failure to maintain altitude during the instrument approach. Contributing factors were the presence of severe icing, moderate turbulence,…

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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