# NTSB MIA70AM073: Grumman G-21A, N40R, St Thomas, VI, February 28, 1970

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: February 28, 1970
- Place: St Thomas, VI · ST THOMAS, VI
- Location: 18.3533° N, 64.9365° W: Placed by OpenAirDocs: center of Saint Thomas, VI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=18.3533&lon=-64.9365&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 5 uninjured
- Status: Completed, report September 9, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 135850
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA70AM073
- Page: https://openairdocs.org/ntsb/MIA70AM073

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0861  70/2/28  NR.ST THOMAS,VI       GRUMMAN G-21A       CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1005                    N40R                PX-  0  0  5  AIR TAXI-PASSG            34, 6081 TOTAL HOURS, 323
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         ST THOMAS,VI                 ST CROIX,VI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - IMPROPER LEVEL OFF
           PILOT IN COMMAND - IMPROPER RECOVERY FROM BOUNCED LANDING
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- L ENG IMPELLER THRUST BEARINGS FAILED.ACFT NOSED OVER AND SANK.
```

## Aircraft

- Registration: [N40R](https://openairdocs.org/deregistered/N40R-1981-02-02), registration cancelled 1981-02-02, S/N B-19 (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: 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.