# NTSB LAX67A0025: Bell 47G-4, N1157W, Los Angeles, CA, August 30, 1966

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: August 30, 1966
- Place: Los Angeles, CA · LOS ANGELES, CA
- Location: 34.0522° N, 118.2437° W: Placed by OpenAirDocs: center of Los Angeles, CA, within about 12 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.0522&lon=-118.2437&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 5 fatal
- Status: Completed, report January 16, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 121432
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX67A0025
- Page: https://openairdocs.org/ntsb/LAX67A0025

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0479  66/8/30    LOS ANGELES CALIF   BELL 47G-4          CR-  1  0  0  MISCELLANEOUS             COMMERCIAL, AGE 46, 401
        TIME - 1650                    N1162W              PX-  1  0  0  POLICE PATROL             TOTAL HOURS, 236 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  3  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          CONVERGENCE ANGLE-DEGREES -  90                          HORIZONTAL COLLISION ANGLE-DEGREES -   90
          VERTICAL COLLISION ANGLE-DEGREES -  0                    EVASIVE ACTION TAKEN - NO
          ANTI-COLLISION LIGHTS - NOT OPERATING
        REMARKS- BOTH PILOTS REPORTEDLY AWARE OTHER HELICOPTER WAS OPERATING IN SAME AREA.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0479  66/8/30    LOS ANGELES CALIF   BELL 47G-4          CR-  1  0  0  MISCELLANEOUS             COMMERCIAL, AGE 40, 14520
        TIME - 1650                    N1157W              PX-  2  0  0  POLICE PATROL             TOTAL HOURS, 1200 IN
                                       DAMAGE-DESTROYED    OT-  2  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - NOT UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - NO
          CONVERGENCE ANGLE-DEGREES -  90                          HORIZONTAL COLLISION ANGLE-DEGREES -   90
          VERTICAL COLLISION ANGLE-DEGREES -  0                    EVASIVE ACTION TAKEN - NO
          ANTI-COLLISION LIGHTS - NOT OPERATING
        REMARKS- N1157W WAS MONITORING AUTOMOBILE TRAFFIC FOR RADIO STATION KMPC-WAS NOT A POLICE HELICOPTER.
```

## Aircraft 1

- Registration: N1157W (not matched to a registry record)
- Reported make and model: BELL 47G-4
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Aircraft 2

- Registration: [N1162W](https://openairdocs.org/deregistered/N1162W-1967-04-27), registration cancelled 1967-04-27, S/N 3335 (OpenAirDocs)
- Reported make and model: BELL 47G-4
- Registry model: [Bell 47G-4](https://openairdocs.org/model/bell-47g-4) (registry code 1181030) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

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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