# NTSB CHI68A0084: Convair 440, N4820C, Evansville, IN, March 20, 1968

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 20, 1968
- Place: Evansville, IN · EVANSVILLE, IN
- Location: 37.9748° N, 87.5558° W: Placed by OpenAirDocs: center of Evansville, IN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9748&lon=-87.5558&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 41 uninjured
- Status: Completed, report August 26, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 111615
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI68A0084
- Page: https://openairdocs.org/ntsb/CHI68A0084

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0015  68/3/20    EVANSVILLE,IND      CONVAIR 440         CR-  0  0  3  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 2007                    N4820C              PX-  0  0 39                            35, 7000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2000 IN TYPE, UNK/NR
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - DRESS MEMORIAL
        OPERATOR - DELTA AIR LINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - RAIN
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                    700
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3 MILES OR LESS                                          RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     TAIL WIND 158-202 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           10                                                       12
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      IFR
        REMARKS- EXHAUST VALVE IN NUMBER 15 CYLINDER.PILOT STARTED SINGLE ENG GO AROUND AND ABORTED.
```

## Aircraft

- Registration: [N4820C](https://openairdocs.org/deregistered/N4820C-1968-09-26), registration cancelled 1968-09-26, S/N 152 (OpenAirDocs)
- Reported make and model: CONVAIR 440
- Registry model: [Convair 340-38](https://openairdocs.org/model/convair-340-38) (registry code 2422718) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Dress Memorial

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.