# NTSB LAX72FUM16: Hughes 269B, N9459F, Mt.Laguna, CA, January 2, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 2, 1972
- Place: Mt.Laguna, CA · MT.LAGUNA, CA
- Location: 32.8711° N, 116.4247° W: Placed by OpenAirDocs: center of Mount Laguna, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8711&lon=-116.4247&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 7, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 165025
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX72FUM16
- Page: https://openairdocs.org/ntsb/LAX72FUM16

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0615   72/1/2    MT.LAGUNA,CALIF     HUGHES 269B         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 23, 1438
        TIME - 1530                    N9459F              PX-  0  0  1  TEST                      TOTAL HOURS, 213 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MT.LAGUNA,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: DESCENDING
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
           POWERPLANT - FUEL SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - WRONG PART
           TERRAIN - WET,SOFT GROUND
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        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                  RELATIVE BEARING OF WIND
          NONE                                                     CALM
        TEMPERATURE-F                                            WIND VELOCITY-KNOTS
           60                                                      CALM
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- ENG STOPPED DUE EXCESSIVE RICH MXTURE-FUEL CTL LNKAGE WORN.WRONG AMC INSTALLED,STUCK IN RICH POSIT
```

## Aircraft

- Registration: [N9459F](https://openairdocs.org/deregistered/N9459F-2009-09-29), registration cancelled 2009-09-29, S/N 36-0245, built 1966 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N9459F (4)

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 LAX69F0335](https://openairdocs.org/ntsb/LAX69F0335), Apr 26, 1969: Hughes 269B (N9459F), Long Beach, CA, substantial damage
- [NTSB LAX69F0131](https://openairdocs.org/ntsb/LAX69F0131), Jul 26, 1968: Hughes 269B (N9459F), Long Beach, CA, substantial damage
- [NTSB LAX68A0076](https://openairdocs.org/ntsb/LAX68A0076), Feb 23, 1968: Hughes 269B (N9459F), Hawain Grdn, CA, substantial damage
- [NTSB LAX67A0006](https://openairdocs.org/ntsb/LAX67A0006), Jul 15, 1966: Hughes 269B (N9459F), Long Beach, CA, 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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