# NTSB DIA67A0020: Piper PA-31, N9004Y, Washington, DC, June 6, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 6, 1967
- Place: Washington, DC · WASHINGTON, DC
- Location: 38.8951° N, 77.0364° W: Placed by OpenAirDocs: center of Washington, DC, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8951&lon=-77.0364&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report August 17, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 116972
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DIA67A0020
- Page: https://openairdocs.org/ntsb/DIA67A0020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0740   67/6/6    WASHINGTON,DC       PIPER PA-31         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 0728                    N9004Y              PX-  0  0  3  AIR TAXI-PASSG            AGE 50, 15020 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 53 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - WASHINGTON NATL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: SWITCHES,LEVERS,CRANKING MECHANISM,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- GR SEL HANDLE RTN NEUTRAL PRIOR GR LOCKED DOWN.SEL LINKAGE AND GR SWITCH MISRIGGED.WARN HORN INTMT
```

## Aircraft

- Registration: [N9004Y](https://openairdocs.org/deregistered/N9004Y-2017-02-04), registration cancelled 2017-02-04, S/N 31-8, built 1967 (OpenAirDocs)
- Reported make and model: PIPER PA-31
- Registry model: [Piper PA-31-310](https://openairdocs.org/model/piper-pa-31-310) (registry code 7103102) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Washington Natl

## Other investigations on N9004Y (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 NYC79FA022](https://openairdocs.org/ntsb/NYC79FA022), Jan 26, 1979: Piper PA-31 (N9004Y), Lima, NY, 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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