# NTSB CHI71FBJ10: Piper PA-23, N5459Y, Grand Rapids, MI, July 17, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 17, 1970
- Place: Grand Rapids, MI · GRAND RAPIDS, MI
- Location: 42.9634° N, 85.6681° W: Placed by OpenAirDocs: center of Grand Rapids, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9634&lon=-85.6681&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 23, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 115932
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71FBJ10
- Page: https://openairdocs.org/ntsb/CHI71FBJ10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0955  70/7/17    GRAND RAPIDS,MICH   PIPER PA-23         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 52, 1177
        TIME - 1030                    N5459Y              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 295 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - KENT COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          DETROIT,MICH                GRAND RAPIDS,MICH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           SYSTEMS - HYDRAULIC SYSTEM: RELIEF VALVE
           MISCELLANEOUS ACTS,CONDITIONS - ERRATIC
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        REMARKS- NOSE GR UNLOCKED. PRESS RELIEF VALVE OP AT TOO LOW PSI.PREVIOUS GR PROBLEM.
```

## Aircraft

- Registration: [N5459Y](https://openairdocs.org/deregistered/N5459Y-1972-11-22), registration cancelled 1972-11-22, S/N 27-2546 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-250](https://openairdocs.org/model/piper-pa-23-250) (registry code 7102308) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Kent County

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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