# NTSB MIA72AM115: Cessna 411, N7399U, Monticello, MS, April 30, 1972

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 30, 1972
- Place: Monticello, MS · MONTICELLO, MS
- Location: 31.5532° N, 90.1187° W: Placed by OpenAirDocs: center of Monticello, MS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=31.5532&lon=-90.1187&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 6 uninjured
- Status: Completed, report February 22, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166035
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA72AM115
- Page: https://openairdocs.org/ntsb/MIA72AM115

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2270  72/4/30    MONTICELLO,MISS     CESSNA 411          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1600                    N7399U              PX-  0  0  6  AIR TAXI-PASSG            AGE 31, 3700 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            37 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ATLANTA,GA                  ALEXANDRIA,LA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: INADEQUATE FLIGHT TRAINING-PROCEDURES
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 1 & 2 CYL EXHAUST VALVES R ENG FAILED.PLT USED IMPROPER FEATH PROC.ACFT HEAVY.PLT NOT CKD OUT.
```

## Aircraft

- Registration: [N7399U](https://openairdocs.org/deregistered/N7399U-1972-11-22), registration cancelled 1972-11-22, S/N 411-0099 (OpenAirDocs)
- Reported make and model: CESSNA 411
- Registry model: [Cessna 411](https://openairdocs.org/model/cessna-411) (registry code 2075902) (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.

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