# NTSB IAD78IA085: Douglas DC-9, N943, Washington, DC, July 26, 1978

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: July 26, 1978
- 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: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 76 uninjured
- Status: Completed, report December 13, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140447
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD78IA085
- Page: https://openairdocs.org/ntsb/IAD78IA085

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0028  78/7/26    WASHINGTON,DC       BEECH B-58          CR-  0  0  1  MISCELLANEOUS             CERTIFICATE UNKNOWN, AGE
        TIME - 0707                    N1843L              PX-  0  0  0  UNKNOWN/NOT REPORTED      UNK/NR, UNK/NR TOTAL
                                       DAMAGE-NONE         OT-  0  0 75                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          WASHINGTON,DC              UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER
          CONTROLLING AGENCY - CENTER EN-ROUTE                     RADAR CTL/SURVEILLANCE - UNKNOWN/NOT REPORTED
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  VERTICAL COLLISION ANGLE-DEGREES -  10
          EVASIVE ACTION TAKEN - NO                                ANTI-COLLISION LIGHTS - OPERATING
        REMARKS- NEAR-COLLISION.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0028  78/7/26    WASHINGTON,DC       DOUGLAS DC-9        CR-  0  0  4  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0707                    N943                PX-  0  0 71                            45, 14125 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  1                            1700 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - U.S. AIR
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          SYRACUSE,NY                 WASHINGTON,DC                WHITE PLAINS,NY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-US AIR CARRIER
          CONTROLLING AGENCY - APPROACH CONTROL LANDING            RADAR CTL/SURVEILLANCE - UNDER RADAR CONTACT
          TRAFFIC ADVISORY ISSUED - BY APPROACH CONTROL            CONTROLLED/UNCONTROLLED AIRPORT - CONTROLLED AIRPORT
          CONTROL ZONE/AREA - YES                                  VERTICAL COLLISION ANGLE-DEGREES -  10
          EVASIVE ACTION TAKEN - YES                               ANTI-COLLISION LIGHTS - OPERATING
        REMARKS- NEAR-COLLISION.
```

## Aircraft 1

- Registration: N943 (not matched to a registry record)
- Reported make and model: DOUGLAS DC-9
- Category: Airplane
- Engines: turbo jet
- Damage: No damage

## Aircraft 2

- Registration: [N1843L](https://openairdocs.org/aircraft/N1843L), registered now, S/N TJ-65 (OpenAirDocs)
- Reported make and model: BEECH B-58
- Registry model: [Beech 58P](https://openairdocs.org/model/beech-58p) (registry code 1152744) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: No 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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