# NTSB MIA76AM066: Grumman G-21A, N4772C, St Croix, VI, February 21, 1976

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: February 21, 1976
- Place: St Croix, VI · ST CROIX, VI
- Location: 17.7397° N, 64.7388° W: Placed by OpenAirDocs: center of Saint Croix, VI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=17.7397&lon=-64.7388&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 5 fatal, 1 serious, 2 minor, 2 uninjured
- Status: Completed, report July 21, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 152568
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA76AM066
- Page: https://openairdocs.org/ntsb/MIA76AM066

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2419  76/2/21  NR.ST CROIX,VI        GRUMMAN G-21A       CR-  0  1  0  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1633                    N4772C              PX-  5  0  4  COMMUTER AIR CARRIER      54, 13628 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0  AIR TAXI-PASSG S-D        3048 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ST THOMAS,VI                ST CROIX,VI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           DITCHING                                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - MISUSED OR FAILED TO USE FLAPS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
           TERRAIN - ROUGH WATER
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      10000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      79
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           70                                                       25
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      VFR
        REMARKS- UNSCHED FEATHER RT PROP REASON UNDETERMINED.ACFT SUBMERGED AND NOT RECOVERED. AMPHIBIOUS.
```

## Aircraft

- Registration: [N4772C](https://openairdocs.org/deregistered/N4772C-1977-01-14), registration cancelled 1977-01-14, S/N B-131 (OpenAirDocs)
- Reported make and model: GRUMMAN G-21A
- Registry model: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204) (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 19760221036039A](https://openairdocs.org/incident/19760221036039A), Feb 21, 1976: Gruman G21A, St Croix, U.S. Virgin Islands, Destroyed, 5 fatal. Unsched feather rt prop reason undetermined. Acft submerged and not recovered. Amphibious.

## Other investigations on N4772C (2)

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 MIA74AM031](https://openairdocs.org/ntsb/MIA74AM031), Oct 13, 1973: Grumman G-21A (N4772C), Christiansted, PR, substantial damage
- [NTSB ANC71FAD05](https://openairdocs.org/ntsb/ANC71FAD05), Nov 26, 1970: Grumman G-21A (N4772C), Wrangell, AK, 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.

---
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.