# NTSB CHI76DEV04: Cessna 177B, N34750, Aledo, IL, July 20, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 20, 1975
- Place: Aledo, IL · ALEDO, IL
- Location: 41.1986° N, 90.7464° W: Placed by OpenAirDocs: center of Aledo, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1986&lon=-90.7464&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 23, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 150440
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI76DEV04
- Page: https://openairdocs.org/ntsb/CHI76DEV04

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3972  75/7/20    ALEDO,IL            CESSNA 177B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 27, 2621
        TIME - 1600                    N34750              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 356 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - MERCER COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          ALEDO,IL                    MOLINE,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - PROPELLER AND ACCESSORIES: BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- PREVIOUS PROP DAMAGE-FILED OUT-REMAINING FILE MARKS CAUSED STRESS RISER.
```

## Aircraft

- Registration: [N34750](https://openairdocs.org/deregistered/N34750-2010-07-27), registration cancelled 2010-07-27, S/N 17701976, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 177B
- Registry model: [Cessna 177B](https://openairdocs.org/model/cessna-177b) (registry code 2073708) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mercer County

## 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 19750720041669A](https://openairdocs.org/incident/19750720041669A), Jul 20, 1975: Cessna 177B, Aledo, IL, Substantial damage. Previous prop damage-filed out-remaining file marks caused stress riser.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; 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.