# NTSB DEN78FTE73: Cessna 337, N1371L, Longmont, CO, July 8, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 8, 1978
- Place: Longmont, CO · LONGMONT, CO
- Location: 40.1682° N, 105.1005° W: Placed by OpenAirDocs: center of Longmont, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.1682&lon=-105.1005&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 13, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140831
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN78FTE73
- Page: https://openairdocs.org/ntsb/DEN78FTE73

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2674   78/7/8    LONGMONT,CO         CESSNA 337          CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 27, 1075
        TIME - 1540                    N1371L              PX-  0  0  1  TEST                      TOTAL HOURS, 1 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - LONGMONT
        DEPARTURE POINT             INTENDED DESTINATION
          BROOMFIELD,CO               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - SELECTED WRONG RUNWAY RELATIVE TO EXISTING WIND
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           SYSTEMS - ELECTRICAL SYSTEM: BATTERIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIDDEN OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- BATTERY DEAD.ENGINE WOULD'T START AFTER INTENTIONAL SHUTDOWN INFLIGHT--AFT ENGINE.
```

## Aircraft

- Registration: [N1371L](https://openairdocs.org/deregistered/N1371L-2014-09-05), registration cancelled 2014-09-05, S/N 33701863, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA 337
- Registry model: [Cessna 337H](https://openairdocs.org/model/cessna-337h) (registry code 2075732) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Longmont

## 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 19780708020369A](https://openairdocs.org/incident/19780708020369A), Jul 8, 1978: Cessna 337H, Longmont, CO, Substantial damage. Battery dead. Engine would't start after intentional shutdown infl--aft engine.

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.