# NTSB MIA79FA082: Cessna 172M, N707AC, San Juan, PR, May 13, 1979

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 13, 1979
- Place: San Juan, PR · SAN JUAN, PR
- Location: 18.4663° N, 66.1057° W: Placed by OpenAirDocs: center of San Juan, PR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=18.4663&lon=-66.1057&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal
- Status: Completed, report July 3, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135773
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA79FA082
- Page: https://openairdocs.org/ntsb/MIA79FA082

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1546  79/5/13    SAN JUAN,PR         CESSNA 172M         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 51, 956
        TIME - 2150                    N707AC              PX-  3  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ISLA GRANDE
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JUAN,PR                 ARECIBO,PR
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - INITIATED FLIGHT IN ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           WEATHER - THUNDERSTORM ACTIVITY
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN/LOWER SCATTERED                                    1500
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          UNKNOWN/NOT REPORTED                                      76
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          130                                                       4
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      NONE
```

## Aircraft

- Registration: [N707AC](https://openairdocs.org/deregistered/N707AC-2014-12-02), registration cancelled 2014-12-02, S/N 17263372, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (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: Destroyed
- Airport: Isla Grande

## 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 19790513019109A](https://openairdocs.org/incident/19790513019109A), May 13, 1979: Cessna 172, San Juan, Puerto Rico, Destroyed, 3 fatal. Pilot departed without weather briefing and continued into detriorating weather, resulting in crash.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.