# NTSB SEA71FYM24: Cessna 421B, N8025Q, Gannett, ID, February 6, 1971

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: February 6, 1971
- Place: Gannett, ID · GANNETT, ID
- Location: 43.3521° N, 114.1677° W: Placed by OpenAirDocs: center of Gannett, ID, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.3521&lon=-114.1677&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 2 minor, 4 uninjured
- Status: Completed, report May 22, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 160378
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71FYM24
- Page: https://openairdocs.org/ntsb/SEA71FYM24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4573   71/2/6    GANNETT,ID          CESSNA 421B         CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 50, 6784
        TIME - 1340                    N8025Q              PX-  0  1  6  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 184 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          HAILEY,ID                   OGDEN,ID
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER GRADE OIL-LUBRICATING SYSTEM
           PERSONNEL - MISCELLANEOUS-PERSONNEL: OTHER
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           WEATHER - OTHER
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - INTENTIONAL WHEELS-UP
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-2 ENGINES
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        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                                                      20
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
          CALM                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WRONG GRADE OF ENG OIL FOR TEMP.INADQT PREHEAT. INADQT INFO IN OWNERS MAN CONCERNING COLD WX OPERN
```

## Aircraft

- Registration: N8025Q (not matched to a registry record)
- Reported make and model: CESSNA 421B
- 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.

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