# NTSB MIA66A0109: Grumman G-21A, N5548A, C.Amalie St.Th., VI, March 19, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 19, 1966
- Place: C.Amalie St.Th., VI · C.AMALIE ST.TH., VI
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 11 uninjured
- Status: Completed, report December 2, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 173310
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA66A0109
- Page: https://openairdocs.org/ntsb/MIA66A0109

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0362  66/3/19    C.AMALIE ST.TH.VI   GRUMMAN G-21A       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 30, 3100
        TIME - 0955                    N5548A              PX-  0  0 10  AIR TAXI-PASSG            TOTAL HOURS, 435 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - ST THOMAS HARBOR
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
           PILOT IN COMMAND - SELECTED WRONG RUNWAY RELATIVE TO EXISTING WIND
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        REMARKS- WIND GUST TO 25 KNOTS.
```

## Aircraft

- Registration: [N5548A](https://openairdocs.org/aircraft/N5548A), registered now, S/N 75-7661, built 1959 (OpenAirDocs)
- Reported make and model: GRUMMAN G-21A
- Registry model: [Grumman G-21A](https://openairdocs.org/model/grumman-g-21a) (registry code 3951204) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: St Thomas Harbor

## Other investigations on N5548A (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 MIA99FA114](https://openairdocs.org/ntsb/MIA99FA114), Mar 25, 1999: Grumman G-21A (N5548A), Lauderdale Lake, FL, destroyed, 1 fatal. Probable cause: The pilots failure to correctly identify an in-flight emergency (fluctuating manifold pressure and rpm due to a disconnected spark plug lead / unscrewed ignition lead shroud) and failure to complete…

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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