# NTSB CHI77FEE15: Cessna 150L, N11740, Sandwich, IL, March 31, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 31, 1977
- Place: Sandwich, IL · SANDWICH, IL
- Location: 41.6501° N, 88.6190° W: Placed by OpenAirDocs: center of Sandwich, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.6501&lon=-88.6190&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 30, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157981
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI77FEE15
- Page: https://openairdocs.org/ntsb/CHI77FEE15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0968  77/3/31    SANDWICH,IL         CESSNA 150L         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 61, 1757
        TIME - 2020                    N11740              PX-  0  0  1  BUSINESS                  TOTAL HOURS, 51 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PEORIA,IL                   GLENVIEW,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - LOW COMPRESSION
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           TERRAIN - WET,SOFT GROUND
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- #1 & 3 INTAKE & EXHAUST VALUES NOT SEATING PROPERLY.
```

## Aircraft

- Registration: [N11740](https://openairdocs.org/deregistered/N11740-2024-12-27), registration cancelled 2024-12-27, S/N 15075604, built 1974 (OpenAirDocs)
- Reported make and model: CESSNA 150L
- Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19770331011299A](https://openairdocs.org/incident/19770331011299A), Mar 31, 1977: Cessna 150L, Sandwich, IL, Substantial damage. #1 & 3 Intake & exhaust values not seating properly.

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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