# NTSB DCA66A0006: Lockheed L-188C, N183H, Ardmore, OK, April 22, 1966

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: April 22, 1966
- Place: Ardmore, OK · ARDMORE, OK
- Location: 34.1743° N, 97.1436° W: Placed by OpenAirDocs: center of Ardmore, OK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.1743&lon=-97.1436&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 83 fatal, 15 serious
- Status: Completed, report August 11, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 172917
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA66A0006
- Page: https://openairdocs.org/ntsb/DCA66A0006

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0001  66/4/22    ARDMORE,OKLA        LOCKHEED L-188C     CR-  5  0  0  MILITARY CTR PASSG DOM    AIRLINE TRANSPORT, AGE
        TIME - 2030                    N183H               PX- 78 15  0                            59, 16247 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            1247 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ARDMORE MUNICIPAL
        OPERATOR - AMERICAN FLYERS AIRLINE CORP.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: TRAFFIC PATTERN-CIRCLING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INCAPACITATION
           MISCELLANEOUS ACTS,CONDITIONS - PILOT SUFFERED HEART ATTACK
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - RAIN
           WEATHER - FOG
        WEATHER BRIEFING - OTHER
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               200
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/2 MILE OR LESS                                         RAIN SHOWERS
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          IFR
         FIRE AFTER IMPACT
        REMARKS- MILITARY WX BRIEFED.ACFT STRUCK HILL ON VISUAL,CIRCLING APPROACH UNDER INSTRUMENT FLIGHT CONDITION
```

## Aircraft

- Registration: [N183H](https://openairdocs.org/deregistered/N183H-2009-07-09), registration cancelled 2009-07-09, S/N 1136, built 1962 (OpenAirDocs)
- Reported make and model: LOCKHEED L-188C
- Registry model: [Lockheed 188C](https://openairdocs.org/model/lockheed-188c) (registry code 5262604) (OpenAirDocs)
- Registry engine: [Allison 501-D13 series](https://openairdocs.org/engine/allison-501-d13-series) (registry code 03004, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Destroyed
- Airport: Ardmore Municipal

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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