# NTSB OAK67F0053: Maule M-4, N4621T, Black Springs, NV, July 4, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 4, 1966
- Place: Black Springs, NV · BLACK SPRINGS, NV
- Location: 39.6101° N, 119.8563° W: Placed by OpenAirDocs: center of Black Springs, NV, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.6101&lon=-119.8563&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report November 4, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 171021
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK67F0053
- Page: https://openairdocs.org/ntsb/OAK67F0053

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2470   66/7/4    BLACK SPRINGS NEV   MAULE M-4           CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 44, 474
        TIME - 0805                    N4621T              PX-  0  0  3  TOWING GLIDERS            TOTAL HOURS, 16 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - STEAD AFB
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
```

## Aircraft

- Registration: [N4621T](https://openairdocs.org/aircraft/N4621T), registered now, S/N 1033, built 1965 (OpenAirDocs)
- Reported make and model: MAULE M-4
- Registry model: [Maule M-4-210](https://openairdocs.org/model/maule-m-4-210) (registry code 5460108) (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: Stead Afb

## Other investigations on N4621T (4)

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.

- [NTSB DEN04LA029](https://openairdocs.org/ntsb/DEN04LA029), Dec 13, 2003: Maule M-4-210 (N4621T), Elbert, CO, substantial damage. Probable cause: the pilot's failure to maintain directional control of the airplane. A contributing factor was his inexperience in aircraft type.
- [NTSB SEA69D0232](https://openairdocs.org/ntsb/SEA69D0232), May 3, 1969: Maule M4-210 (N4621T), Dubois, ID, substantial damage
- [NTSB SEA68D0246](https://openairdocs.org/ntsb/SEA68D0246), Jan 20, 1968: Maule M-4 (N4621T), Idaho Falls, ID, substantial damage
- [NTSB DEN67F0202](https://openairdocs.org/ntsb/DEN67F0202), Jan 29, 1967: Maule M4-210 (N4621T), Ogden, UT, substantial 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.