# NTSB MKC71IK057: Cessna 207, N91099, Lawrence, KS, May 31, 1971

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: May 31, 1971
- Place: Lawrence, KS · LAWRENCE, KS
- Location: 38.9717° N, 95.2353° W: Placed by OpenAirDocs: center of Lawrence, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9717&lon=-95.2353&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 7 uninjured
- Status: Completed, report February 2, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162251
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC71IK057
- Page: https://openairdocs.org/ntsb/MKC71IK057

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0020  71/5/31    LAWRENCE,KANS       CESSNA 207          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 28, 1266
        TIME - 0835                    N91099              PX-  0  0  6  AIR TAXI-PASSG            TOTAL HOURS, 254 IN TYPE,
                                       DAMAGE-MINOR        OT-  0  0  0                            INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - LAWRENCE MUN
        DEPARTURE POINT             INTENDED DESTINATION
          MANHATTAN,KANS              KANSAS CITY,KANS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: DIRT BANK                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - LUBRICATING SYSTEM: LINES,HOSES,FITTING
           MISCELLANEOUS ACTS,CONDITIONS - DISCONNECTED
           MISCELLANEOUS ACTS,CONDITIONS - OIL EXHAUSTION-ENGINE LUBRICATION SYSTEM
           TERRAIN - HIDDEN OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- OIL FILTER ADAPTER ASSEM LOOSE.ADAPTER AND THREADS IN ENG CASE DMGD.CESSNA SERVICE LTRS CVR.
```

## Aircraft

- Registration: [N91099](https://openairdocs.org/deregistered/N91099-2018-01-29), registration cancelled 2018-01-29, S/N 20700073, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA 207
- Registry model: [Cessna 207](https://openairdocs.org/model/cessna-207) (registry code 2073602) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Minor damage
- Airport: Lawrence Mun

## Other investigations on N91099 (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 ANC11FA077](https://openairdocs.org/ntsb/ANC11FA077), Aug 14, 2011: Cessna 207 (N91099), McGrath, AK, substantial damage, 2 fatal. Probable cause: The pilot's decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in an in-flight collision with mountainous terrain.
- [NTSB ANC06CA053](https://openairdocs.org/ntsb/ANC06CA053), May 15, 2006: Cessna 207 (N91099), Akiachak, AK, substantial damage. Probable cause: The failure of the driver of an all terrain vehicle to maintain adequate visual lookout while maneuvering on the ramp, which resulted in a collision with the parked accident airplane's elevator.

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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