# NTSB MKC76FCJ21: Mooney M20F, N9631M, Alliance, NE, January 8, 1976

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: January 8, 1976
- Place: Alliance, NE · ALLIANCE, NE
- Location: 42.1026° N, 102.8769° W: Placed by OpenAirDocs: center of Alliance, NE, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.1026&lon=-102.8769&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report February 11, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 152004
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76FCJ21
- Page: https://openairdocs.org/ntsb/MKC76FCJ21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0021   76/1/8    ALLIANCE,NE         MOONEY M20F         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0755                    N9631M              PX-  0  0  0  BUSINESS                  AGE 21, 2139 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            465 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - ALLIANCE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          ALLIANCE,NE                 HYANNIS,NE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - PRESSURE TOO LOW
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- LOW OIL PRESSURE. NR 2 CNCTG ROD BEARING AND BOLTS FAILED.
```

## Aircraft

- Registration: [N9631M](https://openairdocs.org/aircraft/N9631M), registered now, S/N 670208, built 1966 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Alliance Muni

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760108000409A](https://openairdocs.org/incident/19760108000409A), Jan 8, 1976: Mooney M20F, Alliance, NE, Substantial damage. Low oil pressure. Nr 2 cnctg rod bearing and bolts failed.

## Other investigations on N9631M (1)

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 MKC80DCJ18](https://openairdocs.org/ntsb/MKC80DCJ18), Jul 15, 1980: Mooney M20F (N9631M), Gordon, NE, 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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