# NTSB CHI71AC065: Beech TC-45H, N9858Z, Chicago, IL, March 18, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 18, 1971
- Place: Chicago, IL · CHICAGO, IL
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 18, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161357
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71AC065
- Page: https://openairdocs.org/ntsb/CHI71AC065

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4234  71/3/18    CHICAGO,ILL         BEECH TC-45H        CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0904                    N9858Z              PX-  0  0  0  COMMUTER AIR CARRIER      AGE 25, 2350 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-CARGO S-D        285 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - OHARE INTL
        DEPARTURE POINT             INTENDED DESTINATION
          CHICAGO,ILL                 WINONA,MINN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY LOADED AIRCRAFT-WEIGHT-AND/OR C.G.
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - SNOW
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: INADEQUATE SUPERVISION OF FLIGHT CREW
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               100
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT CROSS WIND 248-292 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          160                                                       9
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          BELOW MINIMUMS                                           IFR
        REMARKS- ATTEMPTED T/O BLO MIN WEA.ACFT COVERED WITH SNOW,352 LBS OVER MAX GROSS WT,6 INCHES AFT CG LIMITS.
```

## Aircraft

- Registration: [N9858Z](https://openairdocs.org/deregistered/N9858Z-1973-06-27), registration cancelled 1973-06-27, S/N AF98 (OpenAirDocs)
- Reported make and model: BEECH TC-45H
- Registry model: [Beech C-45H](https://openairdocs.org/model/beech-c-45h) (registry code 1151018) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ohare Intl

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.

---
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.