# NTSB CHI75DEE45: Grum Amer AA-5, N5484L, Polo, IL, February 4, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 4, 1975
- Place: Polo, IL · POLO, IL
- Location: 41.9848° N, 89.5804° W: Placed by OpenAirDocs: center of Polo, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9848&lon=-89.5804&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report June 3, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148226
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75DEE45
- Page: https://openairdocs.org/ntsb/CHI75DEE45

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0773   75/2/4    POLO,IL             GRUM AMER AA-5      CR-  0  0  2  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1330                    N5484L              PX-  0  0  2  BUSINESS                  AGE 35, 3803 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            102 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - RADIO RANCH
        DEPARTURE POINT             INTENDED DESTINATION
          POLO,IL                     ROCKFORD,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: FENCE,FENCEPOSTS                          TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,ALTITUDE OR CLEARANCE
        FACTOR(S)
           COPILOT - CONTROL INTERFERENCE
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: WET RUNWAY
        REMARKS- SLOW ACCEL ON SOFT SOD RWY.COPILOT INITIATED ABORT,PLT ELECTED TO CONT TKOF.
```

## Aircraft

- Registration: [N5484L](https://openairdocs.org/aircraft/N5484L), registered now, S/N AA5-0384, built 1973 (OpenAirDocs)
- Reported make and model: GRUM AMER AA-5
- Registry model: [Grumman American Avn. AA-5](https://openairdocs.org/model/grumman-american-avn-aa-5) (registry code 3960104) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Radio Ranch

## 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 19750204002739A](https://openairdocs.org/incident/19750204002739A), Feb 4, 1975: Grumav AA5, Polo, IL, Substantial damage. Slow accel on soft sod rwy. Copilot initiated abort,plt elected to cont tkof.

## Other investigations on N5484L (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 CHI79DEE57](https://openairdocs.org/ntsb/CHI79DEE57), May 19, 1979: Grumman AA5 (N5484L), Harvard, IL, substantial damage
- [NTSB CHI76DEP15](https://openairdocs.org/ntsb/CHI76DEP15), Sep 14, 1975: Grum Amer AA-5 (N5484L), Necedah, WI, 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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