# NTSB IAD76II040: Piper PA-31, N4FA, Chantilly, VA, November 15, 1975

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: November 15, 1975
- Place: Chantilly, VA · CHANTILLY, VA
- Location: 38.8892° N, 77.4421° W: Placed by OpenAirDocs: center of Chantilly, VA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8892&lon=-77.4421&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 2, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 152039
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD76II040
- Page: https://openairdocs.org/ntsb/IAD76II040

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0043  75/11/15   CHANTILLY,VA        PIPER PA-31         CR-  0  0  1  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 2100                    N4FA                PX-  0  0  1  AIR TAXI-PASSG            48, 17903 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            2205 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - DULLES INTL
        DEPARTURE POINT             INTENDED DESTINATION
          CHANTILLY,VA                LYNCHBURG,VA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: WING FLAP CONTROL SYSTEM MECHANICAL
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
                                  LATERAL CONTROL PROBLEM
        REMARKS- L FLAP TRANSMISSION ASSEMBLY,P/N 489-380, FAILED INTERNALLY.
```

## Aircraft

- Registration: [N4FA](https://openairdocs.org/deregistered/N4FA-1991-01-17), registration cancelled 1991-01-17, S/N 317405232 (OpenAirDocs)
- Reported make and model: PIPER PA-31
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (registry code 7103110) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: No damage
- Airport: Dulles Intl

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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