# NTSB CHI67F0641: Aero Comdr 520, N7834, Rockford, IL, April 3, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 3, 1967
- Place: Rockford, IL · ROCKFORD, IL
- Location: 42.2711° N, 89.0940° W: Placed by OpenAirDocs: center of Rockford, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2711&lon=-89.0940&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 30, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 117469
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67F0641
- Page: https://openairdocs.org/ntsb/CHI67F0641

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1082   67/4/3    ROCKFORD, ILL       AERO COMDR 520      CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 0649                    N7834               PX-  0  0  1  BUSINESS                  26, 3580 TOTAL HOURS, 9
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - GREATER ROCKFORD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           AIRFRAME - LANDING GEAR: EMERGENCY/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        FACTOR(S)
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- NOSE GEAR ROD ENDS TURNED OPPOSITE TO MANUAL DIRECTIONS. LNDG GEAR DOWN LIGHT OUT OF ADJUSTMENT.
```

## Aircraft

- Registration: [N7834](https://openairdocs.org/deregistered/N7834-2013-06-14), registration cancelled 2013-06-14, S/N 520-92, built 1953 (OpenAirDocs)
- Reported make and model: AERO COMDR 520
- Registry model: [Aero Commander 520](https://openairdocs.org/model/aero-commander-520) (registry code 0141202) (OpenAirDocs)
- Registry engine: [Lycoming GO-435C&D series](https://openairdocs.org/engine/lycoming-go-435c-d-series) (registry code 41521, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Greater Rockford

## Other investigations on N7834 (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 MIA84LA227](https://openairdocs.org/ntsb/MIA84LA227), Aug 14, 1984: Aero Commander 520 (N7834), Stuart, FL, substantial damage
- [NTSB FTW66F0458](https://openairdocs.org/ntsb/FTW66F0458), Dec 6, 1965: Aero Cmdr 520 (N7834), Cleo Springs, OK, 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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