# NTSB NYC68A0086: Piper PA-23, N4563P, Allentown, PA, January 3, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 3, 1968
- Place: Allentown, PA · ALLENTOWN, PA
- Location: 40.5936° N, 75.4784° W: Placed by OpenAirDocs: center of Allentown, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5936&lon=-75.4784&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report February 14, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 112144
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC68A0086
- Page: https://openairdocs.org/ntsb/NYC68A0086

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0008   68/1/3    ALLENTOWN,PA        PIPER PA-23         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0810                    N4563P              PX-  0  0  3  COMMUTER AIR CARRIER      AGE 24, 1555 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        357 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - A-B-E AIRPORT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: SNOWBANK                                  LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: ICE/SLUSH ON RUNWAY
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: SNOW ON RUNWAY
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
                                  PROP/ENGINE VIBRATION
        REMARKS- ENG/PROP VIBRATIONS STOPPED BFOR LNDG.CAUSE NOT DETERMINED.
```

## Aircraft

- Registration: [N4563P](https://openairdocs.org/deregistered/N4563P-1971-04-09), registration cancelled 1971-04-09, S/N 27-70, built 1960 (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: A-B-E Airport

## Other investigations on N4563P (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 NYC71FFD37](https://openairdocs.org/ntsb/NYC71FFD37), Feb 6, 1971: Piper PA-23 (N4563P), Shirley, MA, destroyed

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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