# NTSB MIA77FKG18: Enstrom F28A, N4877, Atlanta, GA, January 28, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 28, 1977
- Place: Atlanta, GA · ATLANTA, GA
- Location: 33.7490° N, 84.3880° W: Placed by OpenAirDocs: center of Atlanta, GA, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.7490&lon=-84.3880&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 14, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157827
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA77FKG18
- Page: https://openairdocs.org/ntsb/MIA77FKG18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2018  77/1/28     ATLANTA,GA         ENSTROM F28A        CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1310                    N4877               PX-  0  0  0  DUAL                      AGE 30, 1329 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1041 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - CHARLIE BROWN
        DEPARTURE POINT             INTENDED DESTINATION
           ATLANTA,GA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- #4 CYL INTAKE VALVE.AVOIDING TREES.
```

## Aircraft

- Registration: [N4877](https://openairdocs.org/deregistered/N4877-1982-02-27), registration cancelled 1982-02-27, S/N 028, built 1968 (OpenAirDocs)
- Reported make and model: ENSTROM F28A
- Registry model: [Enstrom F-28A](https://openairdocs.org/model/enstrom-f-28a) (registry code 3300406) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Charlie Brown

## 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 19770128000829A](https://openairdocs.org/incident/19770128000829A), Jan 28, 1977: Enstrm F28A, Atlanta, GA, Substantial damage. #4 Cyl intake valve. Avoiding trees.

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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