# NTSB MIA80DA023: Piper PA-23, N1435P, Missing Aircraft, December 21, 1979

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 21, 1979
- Place: Missing Aircraft · MISSING AIRCRAFT, UN
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal
- Status: Completed, report March 7, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 132649
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA80DA023
- Page: https://openairdocs.org/ntsb/MIA80DA023

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3309  79/12/21   MISSING AIRCRAFT    PIPER PA-23         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 31, 310
        TIME - UNK/NR                  N1435P              PX-  3  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          AGUADILLA,PR                SOUTH CAICOS ISLAND
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISSING AIRCRAFT,NOT RECOVERED                           UNKNOWN/NOT REPORTED
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        REMARKS- INJURY AND ACFT DAMAGE INDEXES ARE PRESUMED.
```

## Aircraft

- Registration: [N1435P](https://openairdocs.org/deregistered/N1435P-1994-06-28), registration cancelled 1994-06-28, S/N 23493 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23](https://openairdocs.org/model/piper-pa-23) (registry code 7102302) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19791221043919A](https://openairdocs.org/incident/19791221043919A), Dec 21, 1979: Piper PA23, Puerto Rico, Destroyed, 3 fatal. Became missing on night over-water flght between aguadilla, PR, and south caicos islands. Assumed fatals.

## Other investigations on N1435P (1)

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 UNK64X1114](https://openairdocs.org/ntsb/UNK64X1114), Mar 31, 1964: Piper PA-23 (N1435P), Detroit, MI, 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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