# NTSB CHI77FEE34: Beech 35, N3842N, Morris, IL, July 31, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 31, 1977
- Place: Morris, IL · MORRIS, IL
- Location: 41.3802° N, 88.4243° W: Placed by OpenAirDocs: center of Morris, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.3802&lon=-88.4243&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 November 16, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 146268
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI77FEE34
- Page: https://openairdocs.org/ntsb/CHI77FEE34

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2218  77/7/31    MORRIS,IL           BEECH 35            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 51, 224
        TIME - 1400                    N3842N              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 180 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - PRIVATE STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          MORRIS,IL                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE CONTROLS: INDUCTION AIR,PREHEAT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- FLEXIBLE AIR DUCT COLLAPSED BECAUSE VALVE IN ALTERNATE AIR VALVE ASSEMBLY MALFUNCTIONED.
```

## Aircraft

- Registration: [N3842N](https://openairdocs.org/deregistered/N3842N-2012-09-21), registration cancelled 2012-09-21, S/N D-1079, built 1947 (OpenAirDocs)
- Reported make and model: BEECH 35
- Registry model: [Beech 35](https://openairdocs.org/model/beech-35) (registry code 1151502) (OpenAirDocs)
- Registry engine: [Continental E185 series](https://openairdocs.org/engine/continental-e185-series) (registry code 17014, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Private Strip

## 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 19770731026659A](https://openairdocs.org/incident/19770731026659A), Jul 31, 1977: Beech 35BEECH, Morris, IL, Substantial damage. Flexible air duct collapsed because valve in alternate air valve assembly malfunctioned.

## Other investigations on N3842N (1)

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 SEA91FA110](https://openairdocs.org/ntsb/SEA91FA110), May 20, 1991: Beech 35 (N3842N), Harrison, ID, destroyed, 1 fatal. Probable cause: IMPROPER PREFLIGHT PLANNING/PREPARATION BY THE PILOT. THE TERRAIN CONDITION AND THE PILOT'S LACK OF TOTAL EXPERIENCE WERE RELATED FACTORS.

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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