# NTSB LAX68F0086: Bell 47G3B1, N1181W, Marana, AZ, August 2, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 2, 1967
- Place: Marana, AZ · MARANA, AZ
- Location: 32.4367° N, 111.2254° W: Placed by OpenAirDocs: center of Marana, AZ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.4367&lon=-111.2254&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report October 23, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 115865
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX68F0086
- Page: https://openairdocs.org/ntsb/LAX68F0086

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0581   67/8/2    MARANA,ARIZ.        BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1445                    N1181W              PX-  0  0  2  MAPPING/PHOTO             AGE 28, 1050 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            400 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - MARANA AIR PARK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        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                                                      95
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          280                                                       5
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
```

## Aircraft

- Registration: [N1181W](https://openairdocs.org/aircraft/N1181W), registered now, S/N 2948, built 1966 (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-GIA](https://openairdocs.org/engine/lycoming-tvo-435-gia) (registry code 41526, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Marana Air Park

## Other investigations on N1181W (2)

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 WPR16LA069](https://openairdocs.org/ntsb/WPR16LA069), Feb 13, 2016: Bell 47G 3B 1 (N1181W), Carson City, NV, substantial damage. Probable cause: The pilot's failure to maintain sufficient main rotor rpm, which resulted in a loss of helicopter control and a dynamic rollover.
- [NTSB SEA94LA042](https://openairdocs.org/ntsb/SEA94LA042), Nov 15, 1993: Bell 47G3B1 (N1181W), Mesa, WA, substantial damage. Probable cause: THE PILOT'S IMPROPER FLARE. FACTORS INCLUDE EXCESSIVE AIRSPEED WHILE APPROACHING THE FLARE.

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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