# NTSB SEA71FDA02: Cessna 170B, N2304D, Billings, MT, August 7, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 7, 1970
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report June 9, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 190826
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71FDA02
- Page: https://openairdocs.org/ntsb/SEA71FDA02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3373   70/8/7    BILLINGS,MONT       CESSNA 170B         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 38, 397
        TIME - 1400                    N2304D              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 337 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - LOGAN FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          RAPID CITY,S DAK            BILLINGS,MONT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        REMARKS- BOTH BRAKES WORN AND CRACKED.
```

## Aircraft

- Registration: N2304D (not matched to a registry record)
- Reported make and model: CESSNA 170B
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Logan Field

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.