# NTSB OAK62A0045: Douglas DC-7, N6311C, Sacramento, CA, October 14, 1962

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 14, 1962
- Place: Sacramento, CA · SACRAMENTO, CA
- Location: 38.5816° N, 121.4944° W: Placed by OpenAirDocs: center of Sacramento, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5816&lon=-121.4944&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 39 uninjured
- Status: Completed, report April 6, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159232
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK62A0045
- Page: https://openairdocs.org/ntsb/OAK62A0045

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0058  62/10/14 NR.SACRAMENTO,CALIF   DOUGLAS DC-7        CR-  0  0  5  NS/CTR REVENUE PASSG DOM  AIRLINE TRANSPORT, AGE
        TIME - 0034                    N6311C              PX-  0  0 34                            48, 15000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            3036 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - UNITED AIR LINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          FRESNO,CALIF                EUGENE,OREG                 SACRAMENTO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           AIRFRAME - FLIGHT CONTROL SURFACES: VERTICAL STABILIZER,ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - FLUTTER
           AIRFRAME - FLIGHT CONTROL SURFACES: RUDDER SURFACES,ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
                                  DIRECTIONAL CONTROL PROBLEM
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- HI FREQ FATIGUE FAILURE OF VERT STAB,DUE FLUTTER INDUCD BY RUDDER ATTACH AND BEARING ASSY FAILURE.
```

## Aircraft

- Registration: [N6311C](https://openairdocs.org/deregistered/N6311C-1964-04-09), registration cancelled 1964-04-09, S/N 44275 (OpenAirDocs)
- Reported make and model: DOUGLAS DC-7
- Registry model: [Douglas DC-7](https://openairdocs.org/model/douglas-dc-7) (registry code 3021802) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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.