# NTSB DEN74AD041: Mitsubishi MU-2B, N711AH, Glenwood Spg, CO, March 2, 1974

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: March 2, 1974
- Place: Glenwood Spg, CO · GLENWOOD SPG, CO
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 5 fatal, 2 serious
- Status: Completed, report May 31, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 186716
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN74AD041
- Page: https://openairdocs.org/ntsb/DEN74AD041

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0821   74/3/2    GLENWOOD SPG,COLO   MITSUBISHI MU-2B    CR-  1  0  0  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1422                    N711AH              PX-  4  2  0  PLEASURE/PERSONAL TRANSP  35, 10000 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            165 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          HOUSTON,TEX                 ASPEN,COLO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - MISJUDGED SPEED AND CLEARANCE
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - DOWNDRAFT,UPDRAFTS
           TERRAIN - HIGH OBSTRUCTIONS
           TERRAIN - SNOW-COVERED
        WEATHER BRIEFING - SELF-HELP,PILOT CHECKED WEATHER DATA
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  10500
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3 MILES OR LESS                                          NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          HAZE                                                      44
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          220                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- BELOW CLOUDS,NR MTN PEAKS.L TURN TO LOCATE ARPT.HIT MTN.RCVRD 3/4/74.
```

## Aircraft

- Registration: [N711AH](https://openairdocs.org/deregistered/N711AH-1974-08-01), registration cancelled 1974-08-01, S/N 523 (OpenAirDocs)
- Reported make and model: MITSUBISHI MU-2B
- Registry model: [Mitsubishi MU-2B-30](https://openairdocs.org/model/mitsubishi-mu-2b-30) (registry code 5780410) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Destroyed

## 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 19740302016469A](https://openairdocs.org/incident/19740302016469A), Mar 2, 1974: Mtsbsi MU2B30, Glenwood Spg, CO, Destroyed, 4 fatal. Below clouds,nr mtn peaks.l turn to locate arpt. Hit mtn. Rcvrd 3/4/74.

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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