# NTSB SEA69A0006: Lockheed 188C, N130US, Billings, MT, July 20, 1968

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 20, 1968
- Place: Billings, MT · BILLINGS, MT
- Location: 45.7833° N, 108.5007° W: Placed by OpenAirDocs: center of Billings, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.7833&lon=-108.5007&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 3 serious, 18 uninjured
- Status: Completed, report March 18, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 109110
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA69A0006
- Page: https://openairdocs.org/ntsb/SEA69A0006

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0049  68/7/20  NR.BILLINGS,MONT      LOCKHEED 188C       CR-  0  2  3  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1106                    N130US              PX-  0  1 15                            38, 5000 TOTAL HOURS, 700
                                       DAMAGE-NONE         OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - NORTHWEST AIRLINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
        FACTOR(S)
           PERSONNEL - WEATHER PERSONNEL: INCORRECT WEATHER FORECAST
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - WEATHER CONSIDERABLY WORSE THAN FORECAST
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      69
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          290                                                       24
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- MTN WAVE EFFECT NOT FCST. SEAT BELT SIGN ON.
```

## Aircraft

- Registration: N130US (not matched to a registry record)
- Reported make and model: LOCKHEED 188C
- Category: Airplane
- Engines: turbo prop
- Damage: No damage

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.