# NTSB NYC81IA018: Aero Cmdr 690, N9166N, Dunkirk, NY, December 29, 1980

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: December 29, 1980
- Place: Dunkirk, NY · DUNKIRK, NY
- Location: 42.4806° N, 79.3329° W: Placed by OpenAirDocs: center of Dunkirk, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4806&lon=-79.3329&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 14, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127678
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC81IA018
- Page: https://openairdocs.org/ntsb/NYC81IA018

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0047  80/12/29 NR.DUNKIRK,NY         AERO CMDR 690       CR-  0  0  2  COMMERCIAL                COMMERCIAL, AGE 21, 2068
        TIME - 2350                    N9166N              PX-  0  0  0  COMMUTER AIR CARRIER      TOTAL HOURS, 1100 IN
                                       DAMAGE-MINOR        OT-  0  0  0  AIR TAXI-CARGO S-D        TYPE, INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          BOSTON,MA                   DETROIT,MI                   NEWARK,NJ
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           AIRFRAME - FUSELAGE: WINDSHIELDS,WINDOWS,CANOPIES
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        REMARKS- COPILOTS SIDE WINDOW BROKE AT FLT LVL 200.
```

## Aircraft

- Registration: N9166N (not matched to a registry record)
- Reported make and model: AERO CMDR 690
- Category: Airplane
- Engines: turbo prop
- Damage: Minor damage

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Incident 19801229088739I](https://openairdocs.org/incident/19801229088739I), Dec 29, 1980: Rkwell 690, Dunkirk, NY, Minor damage. Explosive decompression at FL200 when copilots side widow failed.

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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