# NTSB DEN74FTM02: Mooney M20C, N9557M, Hurricane Mesa, UT, July 22, 1973

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 22, 1973
- Place: Hurricane Mesa, UT · HURRICANE MESA, UT
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 4 serious
- Status: Completed, report October 15, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189214
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN74FTM02
- Page: https://openairdocs.org/ntsb/DEN74FTM02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2447  73/7/22    HURRICANE MESA,UT   MOONEY M20C         CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 43, 420
        TIME - 1415                    N9557M              PX-  0  3  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 40 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HURRICANE MESA
        DEPARTURE POINT             INTENDED DESTINATION
          SALT LAKE CITY,UT           BURBANK,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,AND ALTITUDE
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  PROP/ENGINE VIBRATION
        REMARKS- CYL EXHT VALVE RKR BROKEN INTAKE PUSH ROD BENT.
```

## Aircraft

- Registration: [N9557M](https://openairdocs.org/deregistered/N9557M-2004-02-27), registration cancelled 2004-02-27, S/N 670134, built 1966 (OpenAirDocs)
- Reported make and model: MOONEY M20C
- 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: Destroyed
- Airport: Hurricane Mesa

## 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 19730722024079A](https://openairdocs.org/incident/19730722024079A), Jul 22, 1973: Mooney M20F, Hurricane Mesa, UT, Destroyed. Cyl exht valve rkr broken intake push rod bent.

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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