# NTSB DEN76FTE98: Erco 415-C, N99107, Ft.Collins, CO, September 22, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 22, 1976
- Place: Ft.Collins, CO · FT.COLLINS, CO
- Location: 40.5853° N, 105.0844° W: Placed by OpenAirDocs: center of Fort Collins, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5853&lon=-105.0844&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 19, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 149698
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN76FTE98
- Page: https://openairdocs.org/ntsb/DEN76FTE98

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3305  76/9/22    FT.COLLINS,CO       ERCO 415-C          CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 0645                    N99107              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  30, 5259 TOTAL HOURS, 300
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - VALLEY AIRPARK
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          FT.COLLINS,CO               AMARILLO,TX                  LAMAR,CO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - STUCK
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- EXHAUST VALVE #2 CYL STUCK OPEN.ACFT NOSED COMPLETELY OVER.P-LINE IN FLT PATH.
```

## Aircraft

- Registration: [N99107](https://openairdocs.org/deregistered/N99107-1977-07-25), registration cancelled 1977-07-25, S/N 1730 (OpenAirDocs)
- Reported make and model: ERCO 415-C
- Registry model: [Ercoupe 415-C](https://openairdocs.org/model/ercoupe-415-c) (registry code 0420322) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Valley Airpark

## 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 19760922032959A](https://openairdocs.org/incident/19760922032959A), Sep 22, 1976: Univar 415C, Ft.Collins, CO, Substantial damage. Exhaust valve #2 cyl stuck open. Acft nosed completely over.p-line in flt path.

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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