# NTSB LAX73AL004: Cessna 172, N2820Q, La Jolla, CA, July 29, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 29, 1972
- Place: La Jolla, CA · LA JOLLA, CA
- Location: 32.8473° N, 117.2742° W: Placed by OpenAirDocs: center of La Jolla, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.8473&lon=-117.2742&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal, 3 uninjured
- Status: Completed, report January 11, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 167665
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX73AL004
- Page: https://openairdocs.org/ntsb/LAX73AL004

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1078  72/7/29    LA JOLLA,CALIF      CESSNA 172I         CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1148                    N46008              PX-  2  0  0  PLEASURE/PERSONAL TRANSP  AGE 55, 5584 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  3                            30 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN DIEGO,CALIF             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         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 - YES
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
         FIRE AFTER IMPACT
        REMARKS- BOTH ACFT OBS FLYING ALMOST PARALLEL BFOR COLLIDING. 2 HOUSES DMGD BY CRASH/FIRE OF N46008.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1078  72/7/29    LA JOLLA,CALIF      CESSNA 172          CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1148                    N2820Q              PX-  0  0  1  DUAL                      28, 2147 TOTAL HOURS, 139
                                       DAMAGE-SUBSTANTIAL  OT-  3  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN DIEGO,CALIF             SANTA MONICA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - CENTER EN-ROUTE                     RADAR CTL/SURVEILLANCE - UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROL ZONE/AREA - YES
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- N2820Q ON INST TRNG FLT.PLT WAS HOODED.LIMITATIONS EXISTED IN RADAR COVERAGE IN ACCDT AREA.
```

## Aircraft 1

- Registration: [N2820Q](https://openairdocs.org/aircraft/N2820Q), registered now, S/N 17259820, built 1971 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172L](https://openairdocs.org/model/cessna-172l) (registry code 2072432) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Aircraft 2

- Registration: [N46008](https://openairdocs.org/deregistered/N46008-1973-06-25), registration cancelled 1973-06-25, S/N 17256985, built 1968 (OpenAirDocs)
- Reported make and model: CESSNA 172I
- Registry model: [Cessna 172I](https://openairdocs.org/model/cessna-172i) (registry code 2072426) (OpenAirDocs)
- Category: Airplane
- 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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