# NTSB MKC75FCG25: Aero Comdr 560, N2730B, Lees Summit, MO, December 23, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 23, 1974
- Place: Lees Summit, MO · LEES SUMMIT, MO
- Location: 38.9108° N, 94.3822° W: Placed by OpenAirDocs: center of Lee's Summit, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9108&lon=-94.3822&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report January 24, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 144929
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC75FCG25
- Page: https://openairdocs.org/ntsb/MKC75FCG25

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4173  74/12/23   LEES SUMMIT,MO      AERO COMDR 560      CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 24, 281
        TIME - 0845                    N2730B              PX-  0  0  4  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 14 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MCCOMAS
        DEPARTURE POINT             INTENDED DESTINATION
          KANSAS CITY,MO              LEES SUMMIT,MO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
           SYSTEMS - HYDRAULIC SYSTEM: RESERVOIR,LINES,FITTINGS
        REMARKS- GR SYS,HYD ACCUMULATOR DIAPHRAGM RUPTURED.GR SAFE MICRO SWITCH INOP,STAYED ON INDICATED DWN.
```

## Aircraft

- Registration: [N2730B](https://openairdocs.org/deregistered/N2730B-2009-10-19), registration cancelled 2009-10-19, S/N 230, built 1955 (OpenAirDocs)
- Reported make and model: AERO COMDR 560
- Registry model: [Aero Commander 560](https://openairdocs.org/model/aero-commander-560) (registry code 0141402) (OpenAirDocs)
- Registry engine: [Lycoming GO-480 series](https://openairdocs.org/engine/lycoming-go-480-series) (registry code 41527, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mccomas

## 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 19741223041379A](https://openairdocs.org/incident/19741223041379A), Dec 23, 1974: Rkwell 560, Lees Summit, MO, Substantial damage. Gr sys,hyd accumulator diaphragm ruptured. Gr safe micro switch inop,stayed on indicated dwn.

## Other investigations on N2730B (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 MKC75AK042](https://openairdocs.org/ntsb/MKC75AK042), Feb 12, 1975: Aero Comdr 560 (N2730B), Leawood, KS, substantial damage

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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